Uponor Wirsbo now offers the Quick Trak system with preassembled panels for faster installation. Quick Trak is a system of wood panels (7" x 48" x 10" x 48") attached to aluminum heat transfer sheets. The preassembled system consists of six panels fastened together with reinforced strapping tape. The panels are staggered two inches on both ends to aid in alignment. The preassembled sets offer all the benefits of traditional Quik Trak and can be installed over an existing concrete slab or plywood subfloor. www.wirsbo.com Uponor Wirsbo.