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ThruFlow Legacy XP Series Decking delivers a balanced blend of durability, water flow, and long-lasting performance for residential and commercial waterfront applications. Legacy XP panels are ThruFlow's flow-through — or throughflow — design, letting water and sunlight pass through the surface instead of pooling on top. Positioned between ThruFlow's cost-focused Impact series and its ultra-reinforced Surge line, Legacy XP uses reinforced polymer construction to deliver dependable strength without the added cost of over-engineering.
Unlike Aqua-Dek's large, barefoot-friendly panels, Legacy XP is built around an optimized open surface area that prioritizes structural integrity and water flow — a design choice suited to docks, walkways, and transitional waterfront spaces where drainage and durability matter as much as comfort underfoot. The open-grid design reduces hydrostatic pressure and keeps the deck surface stable season after season, with UV-stable, slip-resistant panels that stay virtually maintenance-free under constant sun and moisture exposure.
Key Features
Panel Sizes
Available in 1' x 3', 1' x 4', and 1' x 5' interlocking panel sizes — the 1x3 suits tight walkways, 1x4 fits standard dock runs, and 1x5 covers larger deck and marina installations.
Specifications
Composite decking stands apart from wood thanks to features that make it easier to own and maintain.
Enjoy long-term durability that outperforms traditional wood decking.
Choose from a wide range of colors to create a look that’s uniquely yours.
Built with advanced materials that resist rot, moisture, and warping.
With simple, occasional cleaning, your deck stays looking clean and polished
Your deck starts with a great plan. Use our decking design tool to explore layouts, materials, and finishes in a realistic, easy-to-use experience. See what’s possible and move forward with confidence—no surprises, just better builds.
Great – we love ‘em. Our team of experts has plenty of experience with tailoring a customized project. Talk to one of our associates on the floor, give us a call, or drop us a line to get started.
For Small Boxed Items:We offer a 1-2 day turnaround for small boxed items and a tracking number will be provided to keep you updated on the status of your delivery.
For LTL Freight (Common Carrier) Items:We use LTL freight for safe and efficient delivery. Your order will be scheduled for delivery, and it's important to note that for decking deliveries, a homeowner needs to be on hand to unload the product. This ensures a smooth and hassle-free delivery process. Rest assured, we're here to make the process as convenient as possible for you.
If you need it, we’ll get it! As your one-stop deck shop, you’ll find everything at your fingertips, or we’ll get it shipped out to you anywhere in the continental U.S.
The Deck Store takes the guesswork out of pulling your project together. Stop by our local retail store in Knoxville, or enjoy hassle-free online ordering.
Our customers are our #1 priority, and we’re dedicated to bringing you quality decking supplies. Our customer promise is to carry the highest quality products, so you can enjoy your deck or dock for years to come with minimal maintenance.
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