Should I choose 2 cm or 3 cm thick countertops?

Two‑centimeter (about three‑quarters of an inch) slabs are lighter and provide a sleek, modern look but typically need a plywood support under the stone. Three‑centimeter (about one‑and‑a‑quarter inches) slabs are thicker and stronger, often eliminating the need for plywood support, and they offer a more substantial, luxury appearance; however, they are heavier and may cost slightly more because of raw material costs and handling and installation considerations.