# Choosing an SPC wear layer for the traffic class > The wear layer, not the total board thickness, decides how an SPC floor ages. What the 0.2, 0.3, 0.5 and 0.7 mm gauges are actually for. - Published: 2026-08-21 - Topic: Specification - Reading time: 5 min - Publisher: Shandong Home Top New Material Co., Ltd. --- ## Key figures from this note - Home Top produces SPC wear layers in four gauges: 0.2 mm, 0.3 mm, 0.5 mm and 0.7 mm. - The SPC wear layer is a transparent film above the printed decor; it is not the plank thickness and the two are quoted separately. - 0.5 mm is the light-commercial gauge for offices, retail and hotel rooms; 0.7 mm is specified for malls, schools, airports and hospitals. - A thicker wear layer resists abrasion but does not correct an uneven subfloor or reduce impact sound between floors. --- The most common specification mistake we see on incoming enquiries is a buyer asking for "6 mm SPC" and saying nothing about the wear layer. Total thickness is a rigidity and acoustics decision. The wear layer is the one that determines whether the floor still looks acceptable in year eight. ## What the wear layer actually is It is the transparent layer above the printed decor film and below the UV coating. It carries no pattern of its own. Everything that scratches, scuffs or abrades a floor is abrading this layer, and once it is worn through, the decor film goes with it — which is why a worn SPC floor shows as pale patches rather than as dulling. We run four gauges: **0.2, 0.3, 0.5 and 0.7 mm**. ## Matching the gauge to the traffic | Wear layer | Traffic class | Where it belongs | |---|---|---| | 0.2 mm | Light residential | Bedrooms, low-traffic apartments | | 0.3 mm | Residential | General domestic, boutique interiors | | 0.5 mm | Light commercial | Offices, retail, hotel rooms | | 0.7 mm | Heavy commercial | Malls, schools, airports, hospitals | The step that matters most is **0.3 to 0.5**. Below 0.5 mm, a floor put into a commercial setting with grit-carrying foot traffic will show wear paths at entrances and lift lobbies within a few years. Above 0.5 mm, the failure mode usually stops being abrasion and becomes indentation or joint damage instead — different problems, solved by core thickness and by the click profile. ## What it does not fix A thicker wear layer will not compensate for: - **No entrance matting.** Grit tracked in from outside does more damage than any amount of ordinary foot traffic. Specify barrier matting at every external door and you can often drop a gauge. - **A subfloor that is out of tolerance.** SPC's rigid core bridges minor imperfections, but a wavy screed produces point loading, and point loading damages joints, not surfaces. - **Castor chairs without pads.** Hard castors concentrate load into a very small contact patch. This is an indentation problem. ## What to send us For a firm quotation we need the traffic class, the area, and whether the space is air-conditioned. If you are unsure of the class, describe the space and the expected daily footfall and we will specify the build-up — wear layer, core gauge and backing — rather than asking you to pick one from a list. --- ## Sources for the figures in this article - Home Top SPC catalogue p.07-08 (wear layer and core thickness ranges) - EN 13329 / EN 649 abrasion classes --- **Shandong Home Top New Material Co., Ltd.** SPC rigid core and HDF laminate flooring manufacturer, Chiping County, Liaocheng, Shandong, China. Telephone: +86 0635 2983818 Canonical: https://flooring.aisoft.cc/blog/choosing-an-spc-wear-layer/