TimberTech Composite Decking in Seattle, WA | Mill Decking

What it is

TimberTech is a premium composite decking system capped on all four sides with a high-density polymer shell — sealing every surface, including cut ends, against moisture and wear.

Best for

TimberTech suits homeowners who want premium composite performance and a board that holds its finish for the life of the deck.

• Homeowners upgrading from wood who want low maintenance

• Builds where surface aesthetics matter long-term

• Decks with heavy foot traffic, furniture, or pet use

• Any Seattle residential application with year-round exposure

Key features / benefits

A refined composite that performs as well as it looks.

• Four-side capped for complete moisture protection

• Resists fading, staining, and surface scratching

• Wide color palette from natural wood tones to modern grays

• Retains finish integrity through Pacific Northwest UV and rain cycles

• Low maintenance — no sealing, staining, or annual treatment

Material composition

TimberTech boards are engineered with a multi-layer cap system over a composite core.

• High-density polymer cap on all four sides including cut ends

• Composite core for structural stability and weight performance

• Surface texture engineered to replicate natural wood grain

Estimated lifespan

TimberTech composite is built for decades of residential use.

• Standard lifespan: 25 to 30 years

• Backed by manufacturer warranty on fade, stain, and structural performance

Cost range

Contact us for a project-specific estimate based on your deck size and layout.

Maintenance needs

TimberTech requires minimal ongoing maintenance.

• Occasional wash with soap and water

• No staining, sealing, or annual treatment required

• Inspect fasteners and frame annually as standard

Visual or texture style

TimberTech offers a wood-like appearance with composite consistency.

• Natural wood grain texture in smooth and brushed finishes

• Color options range from warm cedar tones to cool contemporary grays

• Consistent color and texture from board to board — no variation like natural wood

Warranty options

TimberTech backs its product with strong manufacturer coverage.

• 25 to 30-year warranty on fade and stain resistance

• Structural warranty on board integrity

• Workmanship warranty provided by Mill Decking on all installations

Installation time

Most TimberTech deck builds complete within a standard project window.

• Residential builds: 5 to 7 days depending on size and complexity

• Hidden fastener installation adds minimal time for a significantly cleaner finish

Environmental impact

TimberTech composite contains recycled content in its core material.

• Manufactured using recycled wood fiber and reclaimed plastic

• Long lifespan reduces replacement frequency and material waste

• No chemical treatment required during use

Fire or weather ratings

TimberTech composite meets residential safety and weather performance standards.

• Class A, B, or C fire rating depending on product line

• Designed for all-season performance in cold, wet, and UV-intensive conditions

Available color or style options

TimberTech offers one of the widest composite color selections available.

• Colors: Warm browns, weathered grays, coastal tones, and dark contemporary finishes

• Styles: Straight-edge and grooved-edge profiles for hidden or face-fastener installation

• Finishes: Smooth and wire-brushed wood grain textures