VEVOR Shower Curb Kit, 38"x60" Watertight Shower Curb Overlay with 4\" ABS Offset Bonding Flange, 4\" Stainless Steel Grate, 2 Cuttable Shower Curb and Trowel, Shower Pan Slope Sticks Fit for Bathro

This tile can be installed directly over this material.

We have those with center drain(https://www.vevor.com/offset-shower-kit-c_10865/vevor-38-x60-waterproofing-shower-kit-shower-kit-tray-with-central-drain-pvc-p_010677866800), and we don’t have those without holes.

Thickness 28mm around, inclined towards the drain outlet, with a slope of about 2°

The thickness of the surface waterproof membrane is 0.4mm.

Yes, you can put a wall 2x4 or glass shower wall on the shower curbs.