Name the shower's wet assembly
A shower tile scope has to name the waterproofing layer, how the floor falls toward the drain, and how the curb or the drain entrance is built. A dry-room floor scope is about the structure under the tile and the finished plane. Treating "tile the shower" as that dry-floor sentence leaves the wet assembly undecided.
The membrane and the backing
Handbook methods B421 and B422 place a waterproof membrane over a solid backing under the area to be tiled. Membrane makers and backer makers do not all accept the same backing. The Tile Council showers FAQ leaves that combination to the makers and the design professional. A scope that never names the membrane or the backing has not made the choice. This note does not pick a product.
Fall toward the drain
Wall tile does not make the floor shed water. The scope should say which drain is already set or will be set, who connects it, and that the finished shower floor falls toward that drain. A floor described only by its tile size can still be flat. Flat is a different assembly.
The entry is its own build
A curb, a low entry, and a linear drain at the threshold are different shapes. Each one changes how the waterproofing turns at the edge and which piece finishes the opening. The scope should name the shape. "Standard shower" does not choose among them.
Fetched 2026-10-11 from the Tile Council showers FAQ. The backing sentences follow that page. They are not a company method.
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