Studio Matrx Monthly · Volume 1 · Issue 1 · June 2026
Amogh N P
 In loving memory of Amogh N P — Architect · Designer · Visionary 
PEI Grade Selector

PEI Rating Selector

Tell us the space, the foot traffic, whether grit gets walked in and whether it is wet — and get the minimum PEI grade and water-absorption group you should buy, with a finish note and a dealer checklist. Aligned to IS 15622 / ISO 10545-7; buyer guidance, not a spec.

IIIIV

Your floor, in four answers

PEI rates the abrasion resistance of the glaze (ISO 10545-7): I walls only, III normal homes, IV heavy domestic and light commercial, V heavy commercial. We start from the space, then adjust for traffic and grit, and set a water-absorption group (IS 15622). Guidance only — confirm ISI/BIS-marked grades with your dealer.

Minimum grade to buy

PEI 0 · III

Normal homes

A living / dining with medium traffic needs PEI III so the glaze survives years of footfall without wearing dull.

PEI wear scale (your pick highlighted)

I
No foot traffic
II
Low-traffic rooms, no grit
III
Most residential floors
IV
Entrances, shops, offices
V
Restaurants, malls, high footfall

Min. absorption group

BIb 0.5–3%

Vitrified — dense and durable, fine for indoor home floors.

Suggested finish

Glossy or matte both work for a clean, dry floor — pick on looks. Darker grout ages better.

What to ask the dealer

Ask for the ISI/BIS-marked spec sheet: confirm PEI III (or higher), water-absorption group BIb (0.5–3%), and the surface finish.

Copies your PEI and absorption spec into a DesignAI prompt to visualise the floor.