Easy for You.
Better for Them.
The LP® SolidStart® Floor System — I-Joists, LVL, Rim Board, and LP TopNotch® Sub-Flooring — installs quicker and easier than products from a patchwork of suppliers because we engineer them to work better together.


Finding a quality engineered floor system from one manufacturer saves you time and hassle. Breeze through one-stop shopping for ordering, customer service and problem resolution. And you can relax knowing a single limited warranty covers the entire system.
The Pros Know
Save Your Sub-Floor
Nothing ruins your hard work faster than pools of rainwater sitting on the sub-floor sheathing during construction. So LP invented self-draining sub-floor sheathing with notches in the tongue-and-groove connections and panel ends. The LP Floor System uses LP TopNotch Sub-Flooring, with three different products available to suit your performance needs.