Decking material guides

Boise averages more than a hundred freezing nights and dozens of 90-degree days a year, with dry air that pulls moisture out of wood fast. That combination is hard on decking in ways national comparisons rarely mention. These guides compare boards and railings on what matters here: heat underfoot, UV fading, checking and splitting, maintenance schedules, fire listings for Foothills lots, and cost over the life of the deck.

• Composite vs wood decking: which is better for a Boise deck?

  Capped composite costs more up front, about $40–$62 per square foot installed against $25–$40 for pressure-treated pine and $30–$48 for cedar in 2026 market ranges, but it skips the stain cycle that Boise sun and dry air demand. Wood costs less and stays cooler underfoot; composite holds its color with washing alone.

• Trex vs TimberTech: which decking fits a Boise deck?

  Both sell capped decking in good, better and best tiers, so compare product lines rather than logos. Trex backs its decking with 25- to 50-year limited residential warranties; TimberTech runs from 25 years on Edge boards to limited lifetime product coverage on AZEK PVC. In Boise, heat-reducing options, current fire listings and local stock matter more than the brand.

• Composite vs PVC decking: what's the difference for Boise?

  Capped composite has a core of wood fiber and plastic under a polymer shell; PVC boards are polymer through and through. In 2026 market ranges PVC costs about $55–$78 per square foot installed against $40–$62 for composite. PVC is lighter, ignores moisture and, in some collections, carries Class A fire ratings; composite costs less.

• Cedar vs pressure-treated decking: which wood suits Boise?

  Pressure-treated pine is the cheaper choice at about $25–$40 per square foot installed in 2026 market ranges, against $30–$48 for western red cedar. Treated pine resists rot through chemical treatment and is the standard for framing; cedar resists decay naturally, stays flatter and looks better but dents more easily. Both need a finish every few years in Boise sun.

• Deck railing options: which one fits a Boise deck?

  Most Boise decks use wood, aluminum, composite, cable or glass railing. Fixr's January 2023 national data runs from $30–$50 per linear foot installed for wood to $140–$210 for glass. Under the 2018 IRC, a deck surface more than 30 inches above grade needs a guard at least 36 inches tall with openings that block a 4-inch sphere.

• Which decking handles full sun in Boise?

  On a south- or west-facing Boise deck, light-colored capped composite or PVC with heat-reducing technology gives the least upkeep, while wood stays cooler underfoot but needs refinishing. Boise averages about 55 days a year at 90°F or hotter, and every decking material gets hot in direct sun, so color and shade matter as much as the brand.