GBS Building Supply - Mauldin
Fiberon Composite Decking & More

GBS Building Supply is a full service lumber yard and building supply company based in Upstate SC. We sell only the highest quality products. Employee owned and locally operated, GBS Building Supply provides everything builders, renovators, and homeown...

Visit GBS Building Supply - Mauldin in Mauldin, SC for all of your Fiberon composite decking and railing needs. Shop for the best decking in the Mauldin 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, GBS Building Supply - Mauldin can help you make your ideas come to life with Fiberon decking.