Have you ever walked across a floor and heard the china cabinet rattle? Or received a call from your clients to fix floor squeaks? Matt Risinger, master builder, shares his top three tips for building a strong sub-floor.First, use a good engineered joist; Risinger recommends 2x4 floor trusses. The foundation for your floor makes a huge difference.Second, use high quality sub-floor. You'll see a 1 1/8" engineered plywood by AdvanTech. Third, use a really strong adhesive. Watch Risinger's review on the DAP's new SmartBond adhesive. Besides proving to be a really powerful adhesive, it sprays out as a foam, which gives you more life out of each can. Watch the full video to learn more about the three tips for building a strong-sub floor.