CONTRACTOR-GRADE EXTERIOR MATERIALS FOR CAPE COD BUILDS.
Cape Cod's trusted warehouse for quality roofing, siding, composite decking, and cellular PVC trim. Barn 33 stocks top brand materials with expert takeoff guidance and fast direct job-site delivery.
Direct Jobsite Delivery
Grade 316 Marine Stainless
Contractor Wholesale Rates
AUTHORIZED SUPPLIER OF TRUSTED PRO BRANDS
2P-10 INSTANT ADHESIVES & INNOVATIVE TOOLS
T50 HEAVY-DUTY STAPLES & TACKERS
BUILDING & ROOFING FASTENERS
COMPOSITE DECKING & CORTEX FASTENERS
PRO STRUCTURAL WOOD SCREWS
PRO FRAMING & ROOFING NAILS
UNIVERSAL STRUCTURAL SCREWS
PRO PLUG SYSTEM FOR PVC TRIM & DECK
STRUCTURAL FASTENERS & CONNECTORS
PRESSURE-TREATED LUMBER
DRYWALL & FRAMING SCREWS
FASTENERS & POWER TOOLS
FASTENERS & BUILDING PRODUCTS
POWER TOOLS & FASTENERS
CONCRETE, MORTAR & MASONRY REPAIR
ROOF CEMENTS, COATINGS & SEALANTS (SINCE 1913)
RED HOT VINYL & PVC TRIM ADHESIVES
SIDING JOINT FLASHING SHEETS
ULTIMATE WATERPROOF WOOD GLUE
AMERICA'S #1 CAULK & SEALANT BRAND
GENIUS GUN POLYURETHANE FOAMS
ADVANCED HYBRID & POLYMER SEALANTS
PL PREMIUM & SUBFLOOR ADHESIVES
QUALITY BUILDING PRODUCTS SINCE 1874
SERENITY HIGH-DENSITY CELLULAR DECKING
ARCHITECTURAL HANDRAILS & CUSTOM STAIR PARTS
SOLID CORE TECHNOLOGY COMPOSITE DECKING
BUILDING PRODUCTS
HIGH-PERFORMANCE CUTTING TOOLS
PIN FOUNDATION SYSTEMS
ROOFING & SIDING
ICE & WATER SHIELD
FIBER CEMENT SIDING
COMPOSITE DECKING
CELLULAR PVC TRIM & DECKING
CELLULAR PVC TRIMBOARD & MOULDINGS
PLYWOOD & STRUCTURAL PANELS
BUILDING ENCLOSURES
STRUCTURAL SUBFLOORING
COMPOSITE DECKING
ROOFING SYSTEMS
CONTRACTOR-GRADE SUPPLIES
DIRECT JOB-SITE DELIVERY AVAILABLE ACROSS CAPE COD & ISLANDS • CALL US FOR SAME-DAY STOCK VERIFICATION:
CALL NOW: (774) 552-9809→BARN 33 EXTERIOR SUPPLIES
THE EXTERIOR SPECIALIST BUILDERS TRUST.
100%PRO-GRADE QUALITY MATERIALS
98%
SatisfiedCape Cod Builders
Barn 33 was built specifically for Cape Cod contractors, builders, and homeowners who need durable, high-quality exterior materials without delay.
Market-Proven Coastal Materials
Roofing, siding, decking, and trim tested against Cape Cod wind, salt, and weather.
Expert Cape Cod Material Guidance
Real technical support to select the right coastal-grade materials and prevent costly order mistakes.
Local Stock & Fast Job Site Delivery
Direct supply from West Yarmouth straight to your job site so your crew stays on schedule.
QUALITY MATERIALS FOR COASTAL CONSTRUCTION.
Roofing, siding, decking, PVC trim, railing, fasteners & accessories, windows, and doors. Contractor-grade supplies engineered to survive Cape Cod wind, salt, and severe weather.
Arrow Fastener
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Heavy-Duty Steel Staples for Roofing Felt & Underlayments (Model #506)
Arrow T50 3/8" (10mm) Heavy-Duty Steel Staples (1,250 Count)
Key Specifications:
- 3/8" (10mm) leg length provides firm penetration into plywood & OSB roof decks
- Heavy-duty steel construction holds roofing felt securely against wind blow-off
Grip-Rite
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#304 Stainless Steel 15° Coil Ring Shank Siding & Shingle Nails
Grip-Rite PrimeGuard MAX #304 Stainless 15° Siding Nails
Key Specifications:
- #304 Grade Stainless Steel prevents black tannin bleeding on White & Red Cedar shingles
- Lifetime Guarantee against rust, streaks, and sea salt corrosion on exterior siding
Bostitch
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ThickCoat Hot-Dipped Galvanized 15° Coil Siding Nails
Bostitch ThickCoat 2-1/2" x .090" 15° HDG Siding Nails
Key Specifications:
- ThickCoat extra heavy hot-dipped galvanized coating certified under ASTM A153 Class D & ESR-1533
- Approved for use in Pressure-Treated Lumber without chemical corrosion breakdown
BEAR SKIN
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Pre-Cut Waterproof Joint Flashing Sheets for Wood, Hardie & PVC Lap Siding
BEAR SKIN Joint Flashing Sheets for Lap Board Siding Joints (50 Sheets Pack)
Key Specifications:
- Pre-Cut 50-Sheet Pack — speeds up siding installation without needing hand cutting of flashing rolls
- Eliminates Butt Joint Caulk — provides permanent hidden weather barrier behind siding seam gaps
Grip-Rite
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4d 1-1/2" Marine 316 Stainless Steel Split-Proof Ring Shank Nails
Grip-Rite PrimeGuard MAX #316 Grade Stainless Steel Siding Nails
Key Specifications:
- #316 Marine Grade Stainless Steel — lifetime guarantee against rust streaks and salt air corrosion
- Ring Shank thread design locks firmly into wood framing without loosening or popping
Grip-Rite
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Manual Flat-Head Roofing Nails for Asphalt Shingles, Felt & Flashing
Grip-Rite 1-1/2" Electrogalvanized Smooth Shank Roofing Nails (1 lb Box)
Option / Size:1-1/2" (1 lb Box)
Black Jack
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Heavy-Duty Wet & Dry Asphalt Cement Sealant for Roof Repairs & Shingles
Black Jack 10 fl oz All-Weather Asphalt Roof Cement Sealant Cartridge
Key Specifications:
- All-Weather Wet & Dry Formula — adheres immediately underwater or on dry asphalt roofs during emergencies
- Heavy Asphalt Compound — seals cracks, splits & seam gaps on worn shingles, metal flashings & gutters
DAP
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High-Performance Black Asphalt Sealant for Roof Leak Repairs & Loose Shingles
DAP ROOF Waterproof Asphalt Sealant (Black / 10.1 fl oz Cartridge)
Key Specifications:
- Wet or Dry Surface Application — seals active leaks and repairs loose shingles in damp or dry weather
- High Asphalt Adhesion — creates an airtight & 100% waterproof seal over asphalt shingles, metal flashings & felt
BluePoint Fasteners
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Pro Contractor Grade 15° Pneumatic Wire Coil Roofing Nails
BluePoint Fasteners Heavy-Duty Collated Roofing Coil Nails
Key Specifications:
- High-precision 15° wire collating prevents tool jamming in high-speed roofing nailers
- Oversized flat head distributes holding pressure evenly to prevent shingle blow-off
Atlantis Rail
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Marine-Grade 316 Stainless Cable Spools & Tensioner Hardware
Atlantis Rail Systems RailEasy Marine 316 Cable & Tensioners
Key Specifications:
- Marine-Grade 316 Stainless Steel Cable Spools (100ft & 500ft options)
- RailEasy patented tensioners install easily with basic hand tools
TimberTech
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Hidden Deck Fastener System for Harvest Collection (300 SQ FT)
TimberTech AZEK Cortex Hidden Fastening System Bucket (Slate Gray)
Key Specifications:
- 100% Invisible Deck Surface Fastening — plugs cut from real TimberTech AZEK Slate Gray composite
- Covers approximately 300 SQ. FT. of deck surface (1,200 plugs & 1,050 screws)
FastenMaster
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Structural Heavy-Duty Wood Screws Replacing 3/8" Lag Screws (ACQ Approved)
FastenMaster TimberLOK 2-1/2" Heavy-Duty Structural Wood Screws (500 Screws Bucket)
Option / Size:2-1/2" (500 Bucket)
FastenMaster
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Engineered Deck Ledger Fastener Replacing 1/2" Lag Screws (ACQ Approved)
FastenMaster LedgerLOK 3-5/8" Deck Ledger Structural Wood Screws (250 Screws Bucket)
Option / Size:3-5/8" (250 Bucket)
Metabo HPT
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Hot-Dipped Galvanized 15° Wire Coil Full Round Head Nails
Metabo HPT 2-1/2" x .131" 15° HDG Ring Shank Nails
Key Specifications:
- Hot-Dipped Galvanized (HDG) coating certified for use in Pressure-Treated lumber
- Full Round Head design required by strict structural building codes for wind uplift resistance
Grip-Rite
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Pro Contractor Pneumatic Collated Nails, Hoses & Air Tools
Grip-Rite RED System Collated Fasteners, Compressors & Tools
Key Specifications:
- Full lineup of collated framing & roofing nails engineered for jam-free driving
- Pneumatic tools built for heavy-duty daily use on framing & sheathing jobsites
FastCap
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10-Second Instant Bond System for PVC Trim Miters & Crown Moulding
FastCap 2P-10 Professional Adhesive Kit (12 oz Aerosol Activator + 2.25 oz Thick Glue)
Option / Size:Combo Kit (Activator + Glue)
VERSATEX
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Fast-Drying Solvent Weld Adhesive for Versatex & AZEK PVC Trimboards
VERSATEX 4 fl oz 1-Part Cellular PVC Cement Adhesive (White / Fast Drying Can)
Key Specifications:
- Chemical Solvent Weld — fuses cellular PVC boards together at the molecular level for permanent joints
- Fast Drying White Formula — dries in clean white color matching Versatex & AZEK trimboards
Christy’s
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Very Fast Set Flexible & UV-Protected White Adhesive for PVC Trim & Windows
Christy’s Red Hot Vinyl 8 oz PVC & Vinyl Trim Adhesive Squeeze Tube (White)
Key Specifications:
- Very Fast Set — forms instant hold on PVC trim joints, window casings & vinyl fence posts
- Flexible Bond Technology — withstands thermal expansion and contraction without popping joints
Grip-Rite
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Grade 316 Marine Stainless Angled Finish Nails for Exterior PVC & Coastal Trim
Grip-Rite 2-1/2" 15 Gauge "FN" Style 316 Stainless Steel Angled Finish Nails (500 Pcs)
Option / Size:316 Stainless (500 Pcs)
Bostitch
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High-Volume 25° Angled Finish Nails for Thin Interior Trim & Casing (Model FN1524)
Bostitch 1-1/2" 15 Gauge 25° "FN" Style Angled Finish Nails (3,655 Count Box)
Option / Size:1-1/2" (3,655 Box)
Grip-Rite
IN STOCK
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Pro Contractor Finish & Brad Collated Nails, Hoses & Air Tools
Grip-Rite RED System Collated Finish Nails & Pneumatic Accessories
Key Specifications:
- Full lineup of collated finish & brad nails engineered for flush countersinking in PVC & wood
- Precision finish nailers designed for split-free fastening of delicate mouldings
Simpson Strong-Tie
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Grade 316 Marine Stainless Collated Brad Nails for Coastal Exterior Trim & PVC
Simpson Strong-Tie 1-1/4" 18 Gauge Grade 316 Stainless Steel Brad Nails (500 Pcs)
Key Specifications:
- Grade 316 Marine Stainless Steel eliminates rust streaks & tannin staining on coastal PVC/wood trim
- Fine 18-gauge wire creates ultra-discreet nail holes for clean, split-free trim installation
Starborn
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Hidden Fastening System with 375 Epoxy Screws, PVC Plugs & Depth Tool
Starborn Pro Plug System for PVC Trim & Mouldings (250 LN FT Box)
Option / Size:250 LN FT (Box)
Grip-Rite
IN STOCK
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#7 x 2-1/4" Trim Head Star Drive Stainless Exterior Screws
Grip-Rite PrimeGuard MAX #305 Stainless Steel Trim Screws
Key Specifications:
- #305 Grade Stainless Steel alloy ensures long-term exterior corrosion resistance & lifetime rust guarantee
- Trim Head profile countersinks flush into cellular PVC trimboards & wood without mushrooming
SOUDAL
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Minimal-Expansion Insulating Foam Sealant with Straw Applicator
SOUDAL Soudafoam Door & Window Low Expansion Foam (12 oz Straw Can)
Option / Size:12 oz (Straw Can)
DAP
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Low Pressure Bright White Foam Guaranteed Won't Bow or Warp Frames & Jambs
DAP NO WARP Window & Door Low Pressure Foam Sealant (Bright White / 12 oz Can)
Key Specifications:
- Guaranteed NO WARP Formula — low-pressure expansion won't bow, bend or distort vinyl or wood frames
- Bright White Cured Color — clean aesthetic finish ideal for trim & window gaps
DAP
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100% Waterproof & Weatherproof Flexible Silicone Sealant (White)
DAP Silicone Window, Door & Siding 100% Silicone Sealant (White / 9.8 fl oz)
Option / Size:White (Branco)
DAP
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America's #1 Selling Caulk with 30-Minute Paint Ready Formula & 40-Yr Durability
DAP ALEX PLUS Siliconized Acrylic Latex Caulk (White / 10.1 fl oz)
Key Specifications:
- America's #1 Selling Caulk — trusted by professionals for smooth, flawless interior & exterior trim joints
- 30-Minute Paint Ready — brush paint or spray over in just 30 minutes without shine-through
Simpson Strong-Tie
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#7 x 3" Severe Coastal Grade 316 Marine Stainless Wood Screws
Simpson Strong-Tie Deck-Drive DWP #316 Stainless Steel Wood Screws
Key Specifications:
- Type 316 Stainless Steel alloy — rated "SEVERE" for direct oceanfront exposure & salt fog
- Trim Head profile with T-15 Star Drive recess minimizes cam-out and seats flush
Bostitch
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High-Volume 25° Angled Finish Nails for Thin Interior Trim & Casing (Model FN1524)
Bostitch 1-1/2" 15 Gauge 25° "FN" Style Angled Finish Nails (3,655 Count Box)
Option / Size:1-1/2" (FN1524)
Grip-Rite
IN STOCK
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Manual Finish Nails for Fine Exterior Trim, Window Casings & Moulding (Code 4HGF1)
Grip-Rite 4D 1-1/2" Exterior Galvanized Smooth Shank Finish Nails (1 lb Box / 560 Pcs)
Option / Size:4D - 1-1/2" (1 lb)
Grip-Rite
IN STOCK
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Pro Contractor Pneumatic Collated Nails, Hoses & Air Tools
Grip-Rite RED System Collated Fasteners, Compressors & Tools
Option / Size:Framing & Structural
BluePoint Fasteners
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Pro Contractor Grade 15° & 21° Pneumatic Coil & Strip Nails (Multiple Sizes)
BluePoint Fasteners Heavy-Duty Collated Framing & Roofing Nails
Key Specifications:
- Available in multiple contractor sizes: 1-1/4" Coil Roofing, 2" Smooth Framing, 2-3/8" Ring Shank & 3" Full Round Head
- High-precision collating prevents tool jamming in high-speed framing nailers
U2 Fasteners
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Structural Wood Screw Replacing Framing Nails (T-25 U-Bit Included)
U2 Fasteners Universal Screw #10 x 3-1/2" Structural Framing Screws
Key Specifications:
- Replaces framing nails with superior structural withdrawal and shear strength
- U-Shield proprietary anti-corrosion coating certified for Ground Contact Pressure-Treated lumber
FastenMaster
IN STOCK
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Structural Heavy-Duty Wood Screws Replacing 3/8" Lag Screws (ACQ Approved)
FastenMaster TimberLOK 2-1/2" Heavy-Duty Structural Wood Screws (500 Screws Bucket)
Option / Size:2-1/2" (500 Bucket)
FastenMaster
IN STOCK
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Structural Heavy-Duty Wood Screws Replacing 3/8" Lag Screws (ACQ Approved)
FastenMaster TimberLOK 2-1/2" Structural Wood Screws (50 Screws Box)
Option / Size:2-1/2" (50 Box)
FastenMaster
IN STOCK
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Engineered Deck Ledger Fastener Replacing 1/2" Lag Screws (ACQ Approved)
FastenMaster LedgerLOK 3-5/8" Deck Ledger Structural Wood Screws (250 Screws Bucket)
Option / Size:3-5/8" (250 Bucket)
FastenMaster
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Engineered Deck Ledger Fastener Replacing 1/2" Lag Screws (Flat Head TORX ttap)
FastenMaster LedgerLOK Flat Head 3-5/8" Deck Ledger Fastener (50 Screws Box)
Option / Size:3-5/8" (50 Box)
FastenMaster
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Engineered Structural Screws for 2-Ply Roof Girder Trusses (Flat Head TORX ttap)
FastenMaster FlatLOK 2-7/8" Structural Wood Screws (50 Screws Box)
Option / Size:2-7/8" (2-Ply / 50 Box)
BluePoint Fasteners
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Level 5 High-Power 10-Shot Strips for Hard Concrete & Structural Steel
BluePoint Fasteners .27 Caliber Red Powder Loads (100 Shots / Level 5)
Option / Size:Red (Level 5 / High)
Titebond
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Industry Standard Professional Aliphatic Resin Glue for Interior Joinery
Titebond Original Wood Glue (16 fl oz / 473 ml Bottle)
Option / Size:Original (16 oz)
LOCTITE
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Heavy-Duty Polyurethane Construction Adhesive 3X Stronger Than Ordinary Adhesives
LOCTITE PL 3X STRONGER PREMIUM Construction Adhesive (10 fl oz)
Key Specifications:
- 3X Stronger Polyurethane Formula — highest bond strength for heavy-duty structural framing & subfloors
- All-Weather All-Climate Application — sets permanently in temperatures from 14°F to 120°F on wet or frozen lumber
LOCTITE
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Industry Standard Solvent-Based Subfloor & Framing Adhesive (10 oz)
LOCTITE PL 400 Heavy-Duty Subfloor Construction Adhesive (10 fl oz)
Option / Size:10 fl oz (295 ml)
SOUDAL
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Industrial Medium-Low Modulus Polyurethane Sealant for Roofing, Masonry & Concrete
SOUDAL Soudaflex PU35 Polyurethane Sealant (White / ASTM C920 Class 35)
Key Specifications:
- ASTM C920 Class 35 Certification — accommodates ±35% joint movement in heavy concrete & masonry structures
- Industrial Polyurethane Adhesion — primerless bonding to concrete, brick, stone, aluminum & wood
Geocel
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Textured "Mortar-Like" Appearance High-Tack Hybrid Sealant for Masonry & Brick
Geocel 4900 HYBRID Textured Construction Sealant (White / 10.1 fl oz)
Key Specifications:
- Textured "Mortar-Like" Finish — mimics the appearance of sand mortar for invisible masonry joint repair
- High-Tack Hybrid Technology — zero slump application with instant grab on vertical & damp surfaces
Quikrete
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Textured Acrylic Masonry Joint Sealant & Brick Mortar Repair with Square Tip
Quikrete 10 fl oz Gray Acrylic Mortar Repair Sealant Cartridge (Model No. 8620-09)
Key Specifications:
- Square Applicator Tip — specially designed to smooth sealant and replicate tuck-pointed mortar joints
- Textured Gray Acrylic Formula — contains real sand particles for authentic mortar appearance
BullsEye Fasteners
IN STOCK
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Bugle Head Sharp Point Interior Drywall Screws with #2 Bit Included
BullsEye Fasteners #6 x 1-1/4" Coarse Thread Drywall Screws
Key Specifications:
- Coarse thread design grips deep into wood studs without stripping or tearing fibers
- Bugle head design seats smoothly into drywall paper without rupturing the core
Metabo HPT
IN STOCK
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Paper Collated 30°-35° HDG Structural Hardware & Hanger Nails
Metabo HPT Strap-Tite Metal Connector Nails
Key Specifications:
- Head Stamped size identification for quick building inspector code verification on job sites
- Heavy-duty .148" shank diameter delivers high shear strength for joist hangers & hurricane ties
Grip-Rite
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16 Gauge 7/16" Crown Electrogalvanized Structural Sheathing Staples
Grip-Rite 16 GA "N" Style 7/16" Medium Crown Staples
Key Specifications:
- Standard "N" Style 7/16" crown fits all major 16GA medium crown pneumatic staplers
- Heavy 16-gauge wire construction provides superior holding power in OSB & plywood sheathing
Les Bardeaux Lajoie
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Canadian Eastern White Cedar Shingles (Class A – Extra Knot-Free Surface)
LES BARDEAUX LAJOIE CLASS A – EXTRA EASTERN WHITE CEDAR SHINGLES
Key Specifications:
- Class A – Extra Knot-Free Grade: Very light color, high quality, and a 100% knot-free exposed surface for exterior siding and roofing
- Natural Rot & Insect Defense: Eastern White Cedar is naturally resistant to decay, wood-destroying insects, and harsh coastal weather exposure
ZIP System
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ZIP System 5/8" Structural Engineered Wood Roof & Wall Sheathing Panel
ZIP SYSTEM 5/8" STRUCTURAL ROOF & WALL SHEATHING
Key Specifications:
- Structural 1 High-Load Sheathing: Structural 1 engineered wood panel designed for demanding exterior roof and wall assemblies under heavy wind and snow loads
- Factory-Integrated Water & Air Barrier: Incorporates a factory-applied vapor-permeable water-resistive barrier and continuous rigid air barrier layer
IN STOCK
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Max Def Architectural Designer Shingles
CertainTeed Landmark PRO (Coastal & Accent Colors)
Key Specifications:
- Max Def (Maximum Definition) vibrant color technology
- StreakFighter 30-year algae resistance guarantee against coastal salt air
IN STOCK
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CertainTeed Landmark PRO Classic Dark & Earthen Shingle Swatches
CertainTeed Landmark PRO (Classic Dark & Earthen Palette)
Key Specifications:
- Premium Wood Shake Aesthetics: Dual laminated layers & deep shadow lines reproduce wood shake charm with asphalt durability
- Max Def Technology: Rich, high-contrast mineral granules accentuating dark charcoal, black & deep earthen brown tones
IN STOCK
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CertainTeed Landmark PRO Traditional Shingle Swatches & Technical Specs
CertainTeed Landmark PRO (Traditional Palette & Tech Specs)
Key Specifications:
- Top-Selling Weathered Wood Leader: Iconic tone perfectly simulating naturally aged timber under New England coastal climate
- 130 mph Wind Warranty Upgrade: Official catalog specification for hurricane-grade wind uplift resistance upgrade
Berger
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Heavy-Gauge Seamless Aluminum Roof Drainage System & Downspout Elbows
BERGER Seamless Aluminum K-Style Gutter & Corrugated Downspout System
Key Specifications:
- Heavy-Gauge Painted Aluminum — durable baked-on factory finish resists salt air oxidation, fading & chipping
- High Capacity K-Style Profile — 5" & 6" K-style troughs channel maximum rainwater away from fascia & foundation
TIMBERTECH
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High-Performance 100% Synthetic Capped Polymer Decking Engineered by AZEK
TIMBERTECH® ADVANCED PVC GROOVED DECKING
Key Specifications:
- Zero Wood Fibers Protection: 100% synthetic capped polymer with zero wood fibers, highly resistant to rot, mold, mildew, insects, and moisture damage
- Alloy Armour Technology® & Cool Touch®: Protective cap resists fading, staining, and weathering, with Cool Touch® technology keeping boards up to 30° cooler to the touch
WPC Composite
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Lightweight Extruded Hollow-Core WPC Composite Board for Decks, Porches & Facades
WPC HOLLOW-CORE COMPOSITE DECKING & WALL CLADDING BOARD
Key Specifications:
- Lightweight Hollow-Core Construction: Extruded longitudinal hollow cavities significantly reduce board weight for easier handling and installation
- Realistic Woodgrain Surface Aesthetics: Natural timber woodgrain texture providing authentic architectural elegance for pool decks, porches, and facades
WOLF HOME PRODUCTS
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High-Density Cellular PVC Decking System with COLORWATCH100® Premium ASA Capstock
WOLF SERENITY™ HIGH-DENSITY CELLULAR PVC DECKING
Key Specifications:
- COLORWATCH100® Premium ASA Capstock: Proprietary capstock layer protects against UV rays and promotes long-term color retention in coastal environments
- High-Density Cellular PVC & Zero Rot: 100% synthetic cellular PVC core with zero wood fibers minimizes moisture absorption and eliminates rot, mold, and mildew
COOPER STAIRWORKS
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Cooper Stairworks 6000 Series Contemporary Architectural Wood Handrails & Custom Curved Rails
COOPER STAIRWORKS 6000 SERIES ARCHITECTURAL WOOD HANDRAILS
Key Specifications:
- Contemporary Architectural Styling: Modern architectural profiles combining comfortable hand grip dimensions with refined aesthetics
- Multiple Premium Hardwoods: Available in Sapele Mahogany, Maple, White Oak, and Red Oak to match any interior design
MoistureShield
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Submersible-Rated Solid Core® Wood Composite Decking (Elevate™ Capped & Vantage™ Uncapped)
MOISTURESHIELD® COMPOSITE DECKING — ELEVATE™ & VANTAGE™
Key Specifications:
- Solid Core® Submersible Protection: Impermeable barrier throughout the board approved for ground, in-ground, and underwater marine applications
- Elevate™ Capped Performance: Protective capstock layer providing enhanced 30-year fade and stain resistance for low-maintenance outdoor living
ADVANTECH
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AdvanTech 23/32" Structural Engineered Wood Subflooring Panel (500-Day No-Sanding & Squeak-Free Guarantee™)
ADVANTECH® 23/32" T&G STRUCTURAL SUBFLOORING
Key Specifications:
- 500-Day No-Sanding Guarantee: Advanced moisture-resistant resin technology throughout the panel guarantees zero edge swell for 500 days of open weather exposure
- 10-Year Squeak-Free Guarantee™: 10-year limited squeak-free guarantee when installed with AdvanTech Subfloor Adhesive as a complete subfloor assembly
Diamond Pier
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Instant Code-Compliant Deck & Porch Concrete Foundation
Diamond Pier DP-75/50 Pin Foundation System
Key Specifications:
- Zero digging or concrete pouring required — sets in minutes
- 4 driving steel pins anchor deep below frost line against winter heaving
ROSEBURG
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Premium MCA Pressure-Treated Southern Pine Decking Board with Smooth Radius-Edge Profile
PREMIUM PRESSURE-TREATED SYP RADIUS-EDGE DECKING BOARD
Key Specifications:
- Radius-Edge Smooth Comfort: Radius-edge REB profile provides a smoother, barefoot-friendly finished edge for exterior decks
- MCA Pressure Treatment Defense: MCA pressure treatment penetrates deep into Southern Pine fibers to resist rot, fungal decay, and insects
AdvanTech
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AdvanTech 23/32 T&G Structural Subflooring Panel Bundle
AdvanTech 23/32" T&G Structural Subflooring
Key Specifications:
- 500-Day No-Sanding Guarantee: Total protection against edge swell caused by rainfall exposure during open construction
- Squeak-Free Guarantee: When installed with AdvanTech Subfloor Adhesive polyurethane glue, guarantees a 100% squeak-free floor
Roseburg
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Roseburg 23/32" CDX Exterior Structural Plywood Sheathing Bundle
Roseburg 23/32" CDX Structural Plywood Sheathing
Key Specifications:
- Real Wood Cross-Laminated Construction: Multi-layer real wood veneers engineered for high dimensional stability and fastener holding power
- Exterior WBP Waterproof Glue: Phenolic resin adhesive bonds layers permanently to resist weather exposure during jobsite construction
ROSEBURG
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Solid Southern Pine Structural Timbers for Posts, Beams, Columns & Heavy Framing
ROSEBURG SOUTHERN PINE STRUCTURAL TIMBERS
Key Specifications:
- Solid-Sawn Southern Pine Strength: Solid-sawn Southern Pine timber engineered for high-capacity structural posts, beams, and columns
- Multi-Application Structural Support: Designed for heavy-duty exterior framing, porches, pergolas, pavilions, and architectural timber structures
ROSEBURG
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Pressure-Treated Ground-Contact Southern Pine Structural Lumber (UC4A Classification)
PRESSURE-TREATED GROUND-CONTACT SOUTHERN PINE STRUCTURAL LUMBER
Key Specifications:
- UC4A Ground-Contact Defense: Ground-contact pressure treatment engineered for demanding exterior applications in direct contact with soil or fresh water
- Fungal & Insect Shield: Advanced preservative treatment deeply protecting Southern Pine fibers against fungal decay, rot, and wood-destroying insects
PROWOOD
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ProWood® MCA Micronized Copper Azole Preserved Southern Pine Ground Contact Lumber (UC4A)
PROWOOD® MCA GROUND CONTACT PRESSURE-TREATED SYP LUMBER
Key Specifications:
- UC4A Ground Contact Preservative: ProWood® MCA micronized copper azole treatment engineered for direct soil contact and high-moisture outdoor applications
- Coastal Hardware Compatibility: Compatible with code-compliant hot-dip galvanized and marine 316 stainless steel fasteners for harsh coastal salt air
CULPEPER TREATED LUMBER
IN STOCK
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Full Contractor Bundles of MicroPro® MCA Preserved Southern Pine Structural Lumber
PREMIUM MICROPRO® MCA PRESSURE-TREATED SOUTHERN PINE STRUCTURAL LUMBER
Key Specifications:
- MicroPro® MCA Fungal & Insect Shield: MicroPro® MCA pressure treatment helps protect against fungal decay, rot, and wood-destroying insects
- Lighter Natural Wood Appearance: Lighter, more natural wood appearance compared with many traditional pressure-treated products
AZEK
IN STOCK
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AZEK® Premium Cellular PVC Architectural Smooth Trimboard (Fascia, Window & Door Casings, Corners & Frieze)
AZEK® CELLULAR PVC SMOOTH TRIMBOARD
Key Specifications:
- Moisture & Rot Resistance: Cellular PVC construction provides excellent resistance to moisture, rot, splitting, splintering, swelling, and warping
- Smooth Factory Finish: Clean matte-white surface designed for a finished exterior appearance without mandatory painting
VERSATEX
IN STOCK
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VERSATEX® Premium Large-Format Smooth Cellular PVC Exterior Architectural Sheets (4x8, 4x10 & 4x12)
VERSATEX® CELLULAR PVC SMOOTH SHEET
Key Specifications:
- Moisture & Rot Protection: Cellular PVC construction is highly resistant to moisture, rot, insects, swelling, and weather-related deterioration
- Smooth Dual Fabrication Surface: Smooth/Smooth finish provides a clean surface on both sides for custom CNC routing, milling, and pediment fabrication
AZEK / Versatex
IN STOCK
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Classic Interlocking T&G Cellular PVC Beadboard for Porch Ceilings & Soffits
AZEK / VERSATEX CELLULAR PVC BEADBOARD
Key Specifications:
- Classic Beadboard Ceiling Aesthetics: Traditional New England beadboard appearance for porch ceilings, soffits, covered patios, and exterior overhangs
- Total Rot & Weathering Resistance: Moisture, mold, mildew, insect, and rot resistant cellular PVC construction that will not cup, rot, or split like wood
AZEK
IN STOCK
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AZEK® Seamless 90° Molded One-Piece Cellular PVC Outside Cornerboards (5/4x4x4 & 5/4x6x6)
AZEK® 5/4 ONE-PIECE CELLULAR PVC CORNERBOARD
Key Specifications:
- One-Piece Seamless Construction: Eliminates the exposed joint and caulk line associated with traditional two-piece corner assemblies
- Smooth Outside Edges: Creates a clean architectural finish and reduces dirt accumulation along exterior vertical seams
VERSATEX
IN STOCK
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VERSATEX® Heavy-Duty 5/4 Nominal (1" Actual Thickness) Cellular PVC Trimboard
VERSATEX® 5/4" CELLULAR PVC TRIMBOARD
Key Specifications:
- Full 1" Actual Thickness: Heavy 5/4 nominal profile delivering 1" actual thickness for deep architectural shadow lines around windows, doors, and fascia
- Precision 90° Edges: Proprietary cutting technology produces clean, dimensionally accurate edges
AZEK / VERSATEX
IN STOCK
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Standard 1×4 Nominal (¾" × 3-1/2" Actual) Cellular PVC Trimboard for Window & Door Casings
AZEK / VERSATEX 1×4 CELLULAR PVC TRIMBOARD
Key Specifications:
- Standard ¾" × 3½" Dimensions: Ideal for window casings, door surrounds, rake boards, frieze boards, and decorative exterior trim
- Moisture & Rot Resistance: Cellular PVC resists moisture-related swelling, warping, rot, decay, and insect damage
WESTLAKE ROYAL
IN STOCK
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WESTLAKE ROYAL Comprehensive Architectural Cellular PVC Trim & Moulding System (Crown, Casing, Sill & Beadboard)
WESTLAKE ROYAL BUILDING PRODUCTS CELLULAR PVC TRIM & MOULDINGS
Key Specifications:
- Extensive Architectural Selection: Wide range of profiles for windows, doors, siding, soffits, porch ceilings, corners, and decorative architectural details
- Architectural Style Versatility: Profiles suitable for traditional, Colonial, Cape Cod, Craftsman, Coastal, Farmhouse, and custom architectural styles
EXPERT MATERIAL ADVICE
Need Help With Your Material List?
We’ll walk you through product specs, exact quantities, and fast Cape Cod job site delivery.
LOCAL PRO EXPERT
THE BARN 33 ADVANTAGE
WHY CAPE COD BUILDERS CHOOSE BARN 33.
COASTAL WEATHER-TESTED BRANDS
We only stock exterior products proven to withstand Atlantic salt spray, severe nor’easters, high UV exposure, and freeze-thaw cycles.
CONTRACTOR ESTIMATING & QUANTITY TAKEOFFS
Bring us your project blueprints or dimensions. Our material specialists calculate exact quantities to minimize job-site waste and extra trips.
FAST & DIRECT CAPE COD DELIVERY
Our dedicated flatbed trucks deliver directly to your job-site anywhere from Sandwich to Provincetown, keeping your framing and siding crews working.
UNBIASED EXPERT MATERIAL GUIDANCE
We do not sell cheap substitutes. We provide honest technical advice on James Hardie siding, CertainTeed shingles, and composite decking.
Fill out the form below or call our sales desk directly. We will provide an accurate material breakdown and competitive pricing.
GET A QUOTE
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CONTRACTOR & BUILDER REVIEWS
WHAT LOCAL PROS SAY ABOUT BARN 33 SUPPLIES.
““To say that Barn 33 delivers on time is an understatement. I came in with a decking job spec'd wrong and they caught it before I wasted a dime. That kind of material advice and service keeps me coming back on every project.”
MR
Marcus Ribeiro
General Contractor • Hyannis, MA
01 / 04
JOB-SITE DELIVERY FLEET
DIRECT TO YOUR CAPE COD JOB SITE
Keep your crew building instead of driving. We deliver high-grade exterior materials directly to your site across Cape Cod with speed and precision.
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FREQUENTLY ASKED QUESTIONS
QUESTIONS ABOUT OUR MATERIALS & DELIVERY.
Unlike big-box stores with generic inventory, Barn 33 exclusively stocks field-tested exterior materials (James Hardie siding, CertainTeed roofing, durable cellular PVC trim, composite decking) specifically validated to withstand Cape Cod coastal salinity, high humidity, and severe winter winds.
FREE MATERIAL ESTIMATION
GET A CONTRACTOR QUOTE FOR YOUR CAPE COD PROJECT.
Fill out the form below or call our sales desk directly. We will provide an accurate material breakdown and competitive pricing.
CALL US 24/7(774) 552-9809
STORE LOCATION
33 Main St, West Yarmouth, MA 02673
EMAIL INQUIRIESsales@barn33exterior.com
CONTACT BARN 33 SUPPLIES
VISIT OUR YARD OR GET IN TOUCH.
Stop by our store in West Yarmouth, inspect verified exterior materials in person, and talk shop with Cape Cod building specialists.
HOURS OF OPERATIONOPEN TO PROS
Monday – Friday7:00 AM – 5:00 PM
Saturday8:00 AM – 1:00 PM
SundayClosed
BARN 33 STORE & LUMBER YARD
OPEN MAP READY TO SUPPLY YOUR NEXT CAPE COD PROJECT?
BUILD BETTER. SAVE TIME.
NEVER MISCALCULATE MATERIALS AGAIN.
Get direct pro builder pricing, free technical material estimation, and fast job-site delivery straight across Cape Cod. Stop by our West Yarmouth store or request a quote today.
Zero Buying Errors
Direct Job-Site Delivery
Pro Builder Pricing
CAPE COD PRO SUPPLIER