Get matched with top composite deck build or replacers in your area

Composite decking stands up to weather, insects, and daily wear without the yearly sanding and staining that wood needs. The boards keep their color, resist splintering, and won’t warp in the sun, so you can spend more time relaxing and less time on upkeep. Over its 25- to 50-year life span, that durability can easily offset the slightly higher upfront price.

Yes, you can install composite decking on a rooftop, but the structure must handle the added weight and have the right slope for drainage. A structural engineer or experienced deck builder will confirm load limits, recommend specialized fasteners, and design a ventilation layer that keeps moisture from collecting under the boards. Those extra steps protect both the roof and your new deck for decades.

Building a composite deck starts with permits and a solid foundation of footings and framing. Next, installers lay joists, secure hidden fasteners, and place the deck boards, followed by railings and stairs if you need them. The job wraps up with a final inspection and thorough cleanup, leaving you with a ready-to-enjoy outdoor space.

Most composite decks last 25 to 50 years—far longer than many wood options. Plastic binders shield the wood fibers from moisture, while built-in UV inhibitors keep colors from fading. Combine that durability with the absence of splinters and decay, and you get a deck that looks fresh season after season with minimal upkeep.

Timeline depends on deck size, site prep, and crew experience, but most residential projects wrap up in a few days to a couple of weeks. Simple ground-level platforms go fastest, while multi-level designs or sites that need excavation add time. A seasoned pro will give you a clear schedule and keep you informed if weather delays pop up.

Composite isn’t your only choice. For classic warmth, you can choose pressure-treated or naturally rot-resistant woods or aluminum for a lightweight, water-resistant surface. Each material has its own maintenance routine, price point, and style, so weigh the look you want against how much time you’re willing to spend on upkeep.