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Cornerstone Custom Deck Building Co.Grants Pass, OR (458) 229-4197
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Composite Deck Builder in Grants Pass, OR

Composite decking installed here runs $16 to $40 per square foot, and that covers the railings, the framework underneath and the hardware, not just the boards you walk on.

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It suits a homeowner who wants a deck that doesn't need regular refinishing and wants a price they can multiply by their own square footage.

What the per-square-foot range covers

The $16 to $40 is an all-in installed number: composite boards, the framing they sit on, the railings, and the screws, clips and other hardware. A per-foot price that only covers boards looks cheaper on paper and leaves the rest to be added later, so we price it complete.

A common next step is patios. Need custom deck building in Grants Pass for another job? Start on our home page.

Worth a read: The Custom Deck Building Timeline: What Each Step Involves · Comparing Custom Deck Building Quotes: What Is Worth Checking

Fasteners, clips and flashing

We build with composite deck screws, and on grooved boards we use hidden-fastener clips. The clip slides into the board groove at each joist, we partly drive its screw, fit the next board onto the clips, then finish driving the screws. The result is a surface with no screw heads showing. Setting a clip at every joist takes more time than face-screwing, so a clipped deck generally sits higher in the range.

Flashing and joist tape are on our materials list for every composite deck. You won't see either once the boards are down. They're in the quote from the start, not added later.

Cutting and fitting the boards

We cut composite with a miter saw or a jigsaw, shortly before each board goes down rather than pre-cutting a whole pile. Measuring against the deck as it's actually built keeps the fit tight at corners and edges and keeps waste down.

Cutting goes slower around stairs, posts and angled edges. A plain layout has fewer of those spots, which is one reason it tends to finish closer to the low end of the range.

Winter freezes and scheduling

We get occasional winter freezes in Grants Pass, and they bring some freeze-thaw movement. We fasten composite with that movement in mind instead of treating the install as a rigid fit.

Days on site scale with the square footage and how involved the layout is. A small, simple deck and a large one with long railing runs are different jobs, and we set the schedule once the plan is settled.

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Parts of the Job

In plain terms, a few of the specifics:

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