Dunn Lumber - Lake Union
Fiberon Composite Decking & More

Dunn Lumber is a family-owned and operated lumber and supply company that has been serving the Seattle area since 1907. They provide lumber and building material solutions for DIYers, remodeling contractors, and home builders. Their product range inclu...

Visit Dunn Lumber - Lake Union in Seattle, WA for all of your Fiberon composite decking and railing needs. Shop for the best decking in the Seattle area that will last long term. Transform your deck with high quality WPC and PVC decking that won’t warp, rot or splinter, so the look you love today will be there tomorrow. Wooden decking simply can’t compare. Experience a one-of-a-kind experience with our discovery deck design software that helps you visualize your dream deck, or browse through great Fiberon deck inspiration with our inspiration gallery. Whether you're looking to redesign your pool deck, front porch, or totally transform the look and feel of your backyard, Dunn Lumber - Lake Union can help you make your ideas come to life with Fiberon decking.