Decking
Choosing the right decking is about more than boards. It’s about longevity, comfort, and confidence in how your project performs year after year. Capital Lumber offers a curated selection of cedar, redwood, composite, and pressure-treated decking, backed by next-day availability, expert guidance, and delivery capabilities most suppliers simply cannot match. Whether you’re building a backyard retreat or a large-scale project, you get the right material, the right advice, and the right timing.
We also supply stains, sealers, and coatings to help preserve the beauty of natural wood decks — including Sun Frog® wood sealers and professional-grade finishes for long-term protection against Idaho’s seasons.
Cedar Decking
Naturally beautiful and comfortable underfoot, cedar is ideal for projects where warmth and character matter. Easy to work with, naturally resistant to decay, and known to age gracefully, cedar remains a favorite for intentional outdoor spaces. Capital Lumber helps you select the right grade and finish so your deck looks refined from day one and performs through Idaho’s seasons.
Redwood Decking
Rich color with long-term stability, redwood offers natural durability and timeless appeal. A premium choice for homeowners and builders who value performance and aesthetics, redwood delivers confidence when details matter. With reliable sourcing and knowledgeable guidance, Capital Lumber removes the guesswork from using redwood.
Composite Decking
Low maintenance with long-term peace of mind, composite decking resists fading, moisture, and wear while maintaining clean, consistent lines. Ideal for homeowners who want durability without ongoing upkeep, composite offers modern performance with lasting appearance. Capital Lumber carries trusted brands and expert insight to help you choose the right profile, color, and system for your project.
Pressure Treated Decking
Strong, dependable, and cost-effective, pressure treated decking is built for structural reliability and everyday use. Designed for ground contact and long spans, it’s a go-to solution for builders who need strength without compromise. Capital Lumber keeps it in stock and delivers longer lengths most suppliers can’t.
Overview
Decking Options
Decking | Type | Lead Time | Stocking Lengths |
|---|---|---|---|
Cedar | Good One Side (C1S), Good Two Sides (C2S) | 1–5 days | 12’, 16’ |
Redwood | Common, Heart | 2–6 weeks | 2x4s – 12’, 16’; 2x6s – 12’, 16’ |
Trex® | Composite | 1–2 days | 16’ – 20’ (square); 12’ – 20’ (grooved) |
TimberTech® | Composite | 1–2 days | 16’ – 20’ (square); 12’ – 20’ (grooved) |
Fiberon® | Composite | 1–2 weeks | 16’ – 20’ (square); 12’ – 20’ (grooved) |
Sylanix® | Composite | 3–5 days | 12’ – 20’ (grooved); 16’ – 20’ (square) |
Thermory® | Modified Wood | 1–2 weeks | Random lengths |
Pressure Treated Fir | Ground Contact (CA-C .15–.31) | In Stock | 8’, 10’, 12’, 16’, 20’ |
Stains & Finishes
Protect and enhance your deck’s lifespan with high-quality stains, sealers, and coatings:
Sun Frog® – Wood sealer and finish, available in 7 colors
KILZ®, Zinsser®, and Rust-Oleum® – Primers and protective coatings
Purdy® & Linzer® – Professional brushes and rollers for application
Why Build Your Deck with Capital Lumber
Next-day availability on most decking products
Delivery of 16–20 foot lengths, made possible by specialized trucks and forklifts
Expert guidance you won’t get at big box stores
Free in-store samples to help you choose with confidence
Contact Us
Decking
Choosing the right decking is about more than boards. It’s about longevity, comfort, and confidence in how your project performs year after year. Capital Lumber offers a curated selection of cedar, redwood, composite, and pressure-treated decking, backed by next-day availability, expert guidance, and delivery capabilities most suppliers simply cannot match. Whether you’re building a backyard retreat or a large-scale project, you get the right material, the right advice, and the right timing.
We also supply stains, sealers, and coatings to help preserve the beauty of natural wood decks — including Sun Frog® wood sealers and professional-grade finishes for long-term protection against Idaho’s seasons.
Cedar Decking
Naturally beautiful and comfortable underfoot, cedar is ideal for projects where warmth and character matter. Easy to work with, naturally resistant to decay, and known to age gracefully, cedar remains a favorite for intentional outdoor spaces. Capital Lumber helps you select the right grade and finish so your deck looks refined from day one and performs through Idaho’s seasons.
Redwood Decking
Rich color with long-term stability, redwood offers natural durability and timeless appeal. A premium choice for homeowners and builders who value performance and aesthetics, redwood delivers confidence when details matter. With reliable sourcing and knowledgeable guidance, Capital Lumber removes the guesswork from using redwood.
Composite Decking
Low maintenance with long-term peace of mind, composite decking resists fading, moisture, and wear while maintaining clean, consistent lines. Ideal for homeowners who want durability without ongoing upkeep, composite offers modern performance with lasting appearance. Capital Lumber carries trusted brands and expert insight to help you choose the right profile, color, and system for your project.
Pressure Treated Decking
Strong, dependable, and cost-effective, pressure treated decking is built for structural reliability and everyday use. Designed for ground contact and long spans, it’s a go-to solution for builders who need strength without compromise. Capital Lumber keeps it in stock and delivers longer lengths most suppliers can’t.
Overview
Decking Options
Decking | Type | Lead Time | Stocking Lengths |
|---|---|---|---|
Cedar | Good One Side (C1S), Good Two Sides (C2S) | 1–5 days | 12’, 16’ |
Redwood | Common, Heart | 2–6 weeks | 2x4s – 12’, 16’; 2x6s – 12’, 16’ |
Trex® | Composite | 1–2 days | 16’ – 20’ (square); 12’ – 20’ (grooved) |
TimberTech® | Composite | 1–2 days | 16’ – 20’ (square); 12’ – 20’ (grooved) |
Fiberon® | Composite | 1–2 weeks | 16’ – 20’ (square); 12’ – 20’ (grooved) |
Sylanix® | Composite | 3–5 days | 12’ – 20’ (grooved); 16’ – 20’ (square) |
Thermory® | Modified Wood | 1–2 weeks | Random lengths |
Pressure Treated Fir | Ground Contact (CA-C .15–.31) | In Stock | 8’, 10’, 12’, 16’, 20’ |
Stains & Finishes
Protect and enhance your deck’s lifespan with high-quality stains, sealers, and coatings:
Sun Frog® – Wood sealer and finish, available in 7 colors
KILZ®, Zinsser®, and Rust-Oleum® – Primers and protective coatings
Purdy® & Linzer® – Professional brushes and rollers for application
Why Build Your Deck with Capital Lumber
Next-day availability on most decking products
Delivery of 16–20 foot lengths, made possible by specialized trucks and forklifts
Expert guidance you won’t get at big box stores
Free in-store samples to help you choose with confidence
Contact Us
Decking
Choosing the right decking is about more than boards. It’s about longevity, comfort, and confidence in how your project performs year after year. Capital Lumber offers a curated selection of cedar, redwood, composite, and pressure-treated decking, backed by next-day availability, expert guidance, and delivery capabilities most suppliers simply cannot match. Whether you’re building a backyard retreat or a large-scale project, you get the right material, the right advice, and the right timing.
We also supply stains, sealers, and coatings to help preserve the beauty of natural wood decks — including Sun Frog® wood sealers and professional-grade finishes for long-term protection against Idaho’s seasons.
Cedar Decking
Naturally beautiful and comfortable underfoot, cedar is ideal for projects where warmth and character matter. Easy to work with, naturally resistant to decay, and known to age gracefully, cedar remains a favorite for intentional outdoor spaces. Capital Lumber helps you select the right grade and finish so your deck looks refined from day one and performs through Idaho’s seasons.
Redwood Decking
Rich color with long-term stability, redwood offers natural durability and timeless appeal. A premium choice for homeowners and builders who value performance and aesthetics, redwood delivers confidence when details matter. With reliable sourcing and knowledgeable guidance, Capital Lumber removes the guesswork from using redwood.
Composite Decking
Low maintenance with long-term peace of mind, composite decking resists fading, moisture, and wear while maintaining clean, consistent lines. Ideal for homeowners who want durability without ongoing upkeep, composite offers modern performance with lasting appearance. Capital Lumber carries trusted brands and expert insight to help you choose the right profile, color, and system for your project.
Pressure Treated Decking
Strong, dependable, and cost-effective, pressure treated decking is built for structural reliability and everyday use. Designed for ground contact and long spans, it’s a go-to solution for builders who need strength without compromise. Capital Lumber keeps it in stock and delivers longer lengths most suppliers can’t.
Overview
Decking Options
Decking | Type | Lead Time | Stocking Lengths |
|---|---|---|---|
Cedar | Good One Side (C1S), Good Two Sides (C2S) | 1–5 days | 12’, 16’ |
Redwood | Common, Heart | 2–6 weeks | 2x4s – 12’, 16’; 2x6s – 12’, 16’ |
Trex® | Composite | 1–2 days | 16’ – 20’ (square); 12’ – 20’ (grooved) |
TimberTech® | Composite | 1–2 days | 16’ – 20’ (square); 12’ – 20’ (grooved) |
Fiberon® | Composite | 1–2 weeks | 16’ – 20’ (square); 12’ – 20’ (grooved) |
Sylanix® | Composite | 3–5 days | 12’ – 20’ (grooved); 16’ – 20’ (square) |
Thermory® | Modified Wood | 1–2 weeks | Random lengths |
Pressure Treated Fir | Ground Contact (CA-C .15–.31) | In Stock | 8’, 10’, 12’, 16’, 20’ |
Stains & Finishes
Protect and enhance your deck’s lifespan with high-quality stains, sealers, and coatings:
Sun Frog® – Wood sealer and finish, available in 7 colors
KILZ®, Zinsser®, and Rust-Oleum® – Primers and protective coatings
Purdy® & Linzer® – Professional brushes and rollers for application
Why Build Your Deck with Capital Lumber
Next-day availability on most decking products
Delivery of 16–20 foot lengths, made possible by specialized trucks and forklifts
Expert guidance you won’t get at big box stores
Free in-store samples to help you choose with confidence
Contact Us
Shop More Products
Shop More Products
Capital Lumber Co.
·
Locally Owned
·
Northend
·
Capital Lumber Co.
·
Locally Owned
·
Northend
·
Capital Lumber Co.
·
Locally Owned
·
Northend
·
Capital Lumber Co.
·
Locally Owned
·
Northend
·
Capital Lumber Co.
·
Locally Owned
·
Northend
·
Capital Lumber Co.
·
Locally Owned
·
Northend
·
Capital Lumber Co.
·
Locally Owned
·
Northend
·
Capital Lumber Co.
·
Locally Owned
·
Northend
·
Capital Lumber Co.
·
Locally Owned
·
Northend
·