What is a PEI rating?
PEI classes range from 0 to 5. The Porcelain Enamel Institute rating scale is not a measurement of quality. It is a scale that clearly indicates the areas of use each manufacturer recommends and has designed their tile to fit. Class 0 – No Foot Traffic: Wall tile only and should not be used on floors. Class 1 – Very light traffic: Very low foot traffic, bare or stocking feet only. (Master bath, spa bathroom). Class 2 – Light Traffic: Slipper or soft-soled shoes. Second level main bathroom areas, bedrooms. Class 3 – Light to Moderate Traffic: Any residential area with the possible exception of some entries and kitchens if extremely heavy or abrasive traffic is anticipated. Class 4 – Moderate to Heavy Traffic: High foot traffic, areas where abrasive or outside dirt could be tracked. Residential entry, kitchen, balcony, and countertop. Class 5 – Heavy Traffic: Ceramic tile suggested for residential, commercial and institutional floor subjected to heavy traffic.