How Much Does a Deck Cost in 2026? PNW Pricing Guide for SEattle, Sammamish & the Eastside

Deck pricing in 2026 varies widely depending on size, materials, engineering, and site conditions. For homeowners in Sammamish, Redmond, Issaquah, Bellevue, and Mercer Island, understanding the full cost breakdown helps you plan confidently and avoid surprises. This guide explains typical price ranges for composite and PVC decks, covered structures, multi‑level designs, and premium upgrades built for PNW living.