Composite and thermally modified wood decking finishes arranged in a studio sample row

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Decking

Decking

Decking

Wood and composite decking systems for outdoor rooms.

Wood and composite decking systems for outdoor rooms.

Wood and composite decking systems for outdoor rooms.

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Capital Lumber Boise Decking building-material category icon

Decking

Decking

View Products Below

View Products Below

Trex composite decking sample palette led by popular Island Mist with warm brown accent finishes

Trex®

Trex®

Available to order. Call to confirm current quantities and lead time. Used for outdoor decking and exterior living projects. Trex composite decking for outdoor living projects. Current lead time is about 1–2 days; call to confirm.

Available to order. Call to confirm current quantities and lead time. Used for outdoor decking and exterior living projects. Trex composite decking for outdoor living projects. Current lead time is about 1–2 days; call to confirm.

16’ – 20’ (square); 12’ – 20’ (grooved)

16’ – 20’ (square); 12’ – 20’ (grooved)

TimberTech premium decking samples led by Coastline with Weathered Teak, French White Oak, and English Walnut finishes

TimberTech®

TimberTech®

Available to order. Call to confirm current quantities and lead time. Used for outdoor decking and exterior living projects. TimberTech composite decking for outdoor living projects. Current lead time is about 1–2 days; call to confirm.

Available to order. Call to confirm current quantities and lead time. Used for outdoor decking and exterior living projects. TimberTech composite decking for outdoor living projects. Current lead time is about 1–2 days; call to confirm.

16’ – 20’ (square); 12’ – 20’ (grooved)

16’ – 20’ (square); 12’ – 20’ (grooved)

Fiberon composite decking samples led by Beach House with gray, golden brown, and classic brown finishes

Fiberon®

Fiberon®

Made to order based on project specifications. Used for outdoor decking and exterior living projects. Fiberon composite decking for outdoor living projects. Project orders typically require about 1–2 weeks.

Made to order based on project specifications. Used for outdoor decking and exterior living projects. Fiberon composite decking for outdoor living projects. Project orders typically require about 1–2 weeks.

16’ – 20’ (square); 12’ – 20’ (grooved)

16’ – 20’ (square); 12’ – 20’ (grooved)

Sylvanix Elite reversible composite decking samples led by Harvest Brown and Tropical Gold

Sylvanix®

Sylvanix®

Available to order. Call to confirm current quantities and lead time. Used for outdoor decking and exterior living projects. Syvlanix composite decking for outdoor living projects. Current lead time is about 3–5 days; call to confirm.

Available to order. Call to confirm current quantities and lead time. Used for outdoor decking and exterior living projects. Syvlanix composite decking for outdoor living projects. Current lead time is about 3–5 days; call to confirm.

12’ – 20’ (grooved); 16’ – 20’ (square)

12’ – 20’ (grooved); 16’ – 20’ (square)

5/4 x 6 Cedar Decking available from Capital Lumber in Boise

5/4 x 6 Cedar Decking

5/4 x 6 Cedar Decking

Good One Side (C1S) / Good Two Sides (C2S)

Good One Side (C1S) / Good Two Sides (C2S)

This item is available to order; call to confirm current timing. Commonly used for deck boards, stairs, framing, and outdoor construction. Cedar decking offers a natural look for outdoor living surfaces. Current lead time is about 1–5 days; call to confirm.

This item is available to order; call to confirm current timing. Commonly used for deck boards, stairs, framing, and outdoor construction. Cedar decking offers a natural look for outdoor living surfaces. Current lead time is about 1–5 days; call to confirm.

12' | 16' in both grades

12' | 16' in both grades

Thermory Benchmark Ash thermally modified real-wood decking with a natural exotic-brown finish

Thermory®

Thermory®

Made to order based on project specifications. Used for outdoor decking and exterior living projects. Thermally modified hardwood decking from the Thermory product line. Project orders typically require about 1–2 weeks.

Made to order based on project specifications. Used for outdoor decking and exterior living projects. Thermally modified hardwood decking from the Thermory product line. Project orders typically require about 1–2 weeks.

Random lengths

Random lengths

SPECIFICATION HELP

Not sure what

to specify?

Not sure what

to specify?

Not sure what

to specify?

Start with the conditions, not the brand. The yard can narrow the products from there.

Start with the conditions, not the brand. The yard can narrow the products from there.

Start with the conditions, not the brand. The yard can narrow the products from there.

01 / APPLICATION

01 / APPLICATION

Where it will be installed, what it supports, and how it will be exposed narrow the right product.

Where it will be installed, what it supports, and how it will be exposed narrow the right product.

02 / SPECIFICATION

02 / SPECIFICATION

Nominal size, actual dimensions, grade, treatment, span, and code requirements should match the plan.

Nominal size, actual dimensions, grade, treatment, span, and code requirements should match the plan.

03 / LOGISTICS

03 / LOGISTICS

Quantity, lead time, pickup, delivery access, and job sequence determine how the order should be staged.

Quantity, lead time, pickup, delivery access, and job sequence determine how the order should be staged.

Capital Lumber red tree mark and white wordmark.

© 2026 CAPITAL LUMBER CO., INC.

© 2026 CAPITAL LUMBER CO., INC.

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