Fortress® set out to prove that cost-effective decking could still deliver the strength, usability and beauty of its premium cousins. Well, we did that and more.
Our new Infinity® I‑Series decking is 40% lighter, while keeping the same stiffness and mechanical properties. This revolutionary design uses the historically proven I-beam shape, which is uniquely capable of handling heavy loads.
Want to see and feel Infinity I-Series composite decking up close? Request samples today to join the decking revolution.
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Cape Town Grey
Grooved Infinity I-Series boards install with hidden clips beneath the deck surface. Square Infinity I-Series install with surface mounted color-match deck screws.
Specs: 5.35" (136mm) x 1" (25mm) x 12'/16'/20' (366cm/488cm/610cm)
Specs: 5.35" (136mm) x 1" (25mm) x 16' (488cm)
Specs: 5.5" (140mm) x 1" (25mm) x 20' (610cm)
Brushed surface fascia boards used for trim around decking and stair risers.
Specs: .65" (17mm) x 7.25" (184mm) x 12' (366cm)
Specs: .75" (19mm) x 11.75" (298mm) x 12' (366cm)
Specs: 5" (127mm) x 5" (127mm) x 40"/120" (1016mm/3048mm)
Post cap and post base are sold separately and fit a 5" Post Sleeve.
Specs: 1.5" (38mm) x 3.5" (89mm) x 96" (2438mm)
Historically, fortresses were built to protect. The same is true of Fortress Building Products. You can expect coverage the second you decide to embark on your journey with us. We cover our products and the people who buy them. At Fortress, we don’t just stand behind our work ... we stand by your side.Go To Warranty
Check out our beautiful, informative literature to learn all about our decking products. Be briefed by brochures, stirred by sales sheets, captivated by catalogs and motivated by other marketing elements.Go To Sales Sheet
These brief courses are designed to help you learn about Fortress products, and gain the in-depth knowledge you need to confidently sell them. Register for an online training course or request a live in-person training.Go To Courses
Looking to add the finishing touch to your decking project? Consider one of the matching Sherwin Williams paint colors. This will ensure end-cut color consistency for each Fortress board, no matter the shade you fall in love with. Download the spec sheet below.Download Colors