| Primary value | 10 mm tile (typical) (tile + adhesive + screed = 50 – 75 mm build-up) |
| Applies to | Floor tile installation in residential and commercial buildings · Bathroom and kitchen floors with sunken slabs · Calculation of FFL (finished floor level) above structural slab |
| Exceptions | Vitrified tile (floor) → 8 – 10 mm |
| Ceramic tile (floor) → 6 – 9 mm | |
| Wall tile → 6 – 8 mm | |
| Tile adhesive bed → 3 – 6 mm | |
| Screed / cement-sand bed below → 20 – 50 mm | |
| Total floor build-up (slab → finish) → 50 – 75 mm typical | |
| Sunken slab depth (toilet) → 200 – 300 mm | |
| Measured as | Tile thickness measured face-to-back. Build-up thickness measured from top of RCC slab to top of finished tile (TOTL). Sunken slabs are dropped by the build-up amount + plumbing space. |
| Source | IS 13753 / IS 15622 — Tile dimensional tolerances ✓ Verified |
4 related items across IS codes, knowledge articles, design rules, maps and tools
Floor build-up determines architectural finished floor level — the architect's section must match what plumbing and slab drops actually provide. 50–75 mm of build-up is what every Indian floor needs for vitrified-tile + adhesive + cement screed. Skip the screed (laying tile directly on slab) and you get hollow-sounding tiles within 2 years.
Standard residential floor section: 56 mm RCC slab below FFL = 36 mm cement screed + 6 mm adhesive + 10 mm vitrified tile. Bathrooms have 200 mm sunken slabs to accommodate plumbing + waterproofing + screed + tile.