Floors in bathrooms and shower areas will get wet. On unprotected timber floors this can create problems if the grout fails or cracks, as this can lead to tiles lifting if water seeps through to the timber floor causing it to swell and warp. The Thermopanel wet room solution eliminates this problem by allowing you to create a fully waterproofed floor. The trays are totally compatible with electrical underfloor heating. The Thermopanel Shower Trays contain the following items: ---Square OR Linear Shower Tray ---2% Gradient Fall to Drain ---Easy & Quick to Install ---Lightweight & Sturdy ---Vertical Drain ---Tanking Kit (If Selected) These lightweight shower trays are ideal if you're looking to create a stylish yet effective wet room.