It is the easiest, fastest way to build a curbless, level-entry shower is with an ARC shower base. Installing this shower base and waterproofing your shower can be completed in one day. With a TrueDEK shower base you avoid all the difficulty and risk of notching, lowering, or altering the joists. ARC TrueDEK shower bases take away all of the guesswork and make building a shower so much easier. This shower base is 7/8 thick at the edges. You can cover this base with tile or stone (from ¼” to 1″ thick); this base can also be covered with commercial, weldable vinyl flooring. To build larger showers use ARC pitch extensions or appropriate mortar products, or install TrueDEK shower bases side-by-side. You can install TrueDEK bases on any type of joists, on subfloor, or on concrete to complete your shower installation you will need an ARC waterproofing kit and a drain assembly for tile (choose a drain for vinyl only if you install commercial, weldable vinyl flooring) tile that is 2″ x 2″ or smaller conform to the contours of this shower base to maintain the pitch; for tile larger than 2″ x 2″, make valley cuts so that the tile lays properly on all pre-pitched surfaces. When installed properly on joists, all TrueDEK Classic bases will support 800 lbs. or more. This product is covered by the manufacturer’s limited lifetime warranty.