Inputs
Typical: 10% straight lay, 15% complex cuts / patterns.
Grout joints are not included in the tile area calculation (conservative). Always round up to full boxes and keep spares.
Results
Enter your wall and tile details then click Calculate.
FLFlorida Building Code
References & Sources
Standards Cited
- ANSI A108/A118/A136 — ANSI Standards for Installation of Ceramic Tile
Defines standard tile sizes, dimensional tolerances, and installation methods for wall tiling in North America - TCNA Handbook — Tile Council of North America — Handbook for Ceramic, Glass, and Stone Tile Installation
Provides guidance on wall tile installation, wastage allowances, and layout planning in North America
Formulas Used
- Wall Area:
A = wallWidth x wallHeight
Source: Standard geometry - Tile Area:
tileArea = (tileWidth / 1000) x (tileHeight / 1000)
Source: ANSI A108 / TCNA Handbook — Tile dimensions converted from mm to m - Tiles Needed:
tiles = ceil(wallArea / tileArea)
Source: ANSI A108 / TCNA Handbook - Tiles with Wastage:
total = ceil(tilesNeeded x (1 + wastage% / 100))
Source: ANSI A108 / TCNA Handbook — Typical wastage 10-15% for cuts and breakages
Key Assumptions
- Wastage of 10-15% recommended for cuts, breakages, and future spares — TCNA Handbook
- Grout joint width not included in tile area calculation (conservative estimate) — Industry standard practice
- Common US wall tile sizes include 3"x6" (subway), 4"x4", 6"x6", and 12"x24" — TCNA Handbook / manufacturer standard sizes