The arch niche is manufactured from High density waterproof closed cell polyurethane rigid panel and applied polyurethane sealant. The Niche Man shower niches are waterproof, versatile, come already primed, easy to install and ready to tile in minutes. They will not inhibit bacteria and guaranteed not to rot or degrade. The Niche Man shower niche can be used in all wet areas that are exposed to moisture including, bathrooms, showers, external walls and outdoor areas. Shower niches are lightweight for easy manoeuvring but strong to hold the heaviest of tiles, stone, render or decorative finish you choose. Note.. Shower niches do not come with a 2mm slope in base this is to be put in place at tile stage. If you require a custom-built special size shower niche be sure to click on the request a quote button to enter details. All fixing to surrounding stud is done through the 6mm thick front reveal which is designed to mounted flush with Villaboard wall lining. DO NOT FIX THROUGH SIDE WALLS This front reveal is critically important because it is the surface upon which the shower wall waterproofing membrane bandage will attach. Shower niches come complete with how to install instructions with additional information and videos via the Niche Man website The Niche Man Shower Niche giving peace of mind to your bathroom build.