Large-format slabs with near-total heat and stain resistance. Everything you need to know before choosing porcelain for your kitchen, bath, or vanity project.
Porcelain slab countertops are made from refined clay, feldspar, and silica, fired at extremely high temperatures until fully vitrified into a dense, glass-hard surface. It's the large-format, full-body evolution of porcelain tile — rather than a thin glaze over a softer base, the color and pattern typically run through the entire thickness of the slab.
Porcelain lands around 6 to 7 on the Mohs scale with essentially zero porosity, and it's one of the most heat-tolerant countertop materials available, rated to withstand temperatures up to roughly 1,000°F without damage — well beyond quartz's resin-limited ceiling. Its main vulnerability is impact rather than scratching: because slabs are relatively thin, a sharp, hard blow to an unsupported edge or corner can chip or crack the material.
Comparing porcelain against Granite, Quartz, Marble, Quartzite, Soapstone, Remnants, Solid Surface, Recycled Glass, Slate, Butcher Block? See the full side-by-side on our materials page, or explore each below.
We fabricate and install porcelain countertops and vanity tops throughout the Keene area.
Tell us about your project and we'll respond within one business day with an honest, itemized estimate.
