With the HYDROBLOK floor lowering kit and HYDROBLOK Single Slope Shower Pans, your shower area can be set up for a barrier free installation in no time at all. Floor lowering clips allow the subfloor to be installed flush with the joists to allow barrier-free entry to your shower. Quickly lower your subfloor for a low profile, curbless, ADA, or barrier free shower – One kit recesses up to 24 sq ft – Perfect for I-Joists or dimensional lumber because brackets attach to the top chord of joists and studs at parallel walls – Wall brackets can be modified for different situations – Achieves L/360 or better deflection rating with a live load of 40 PSF and dead load of 20 PSF Subfloor Lowering Kit Includes: – 15 Joist Brackets – 6 Wall Brackets – 81 Wood Screws