Is granite countertop heavy? Yes and knowing exactly how heavy before your installation can save you from structural headaches, cabinet damage, and costly surprises. Granite is one of the densest natural stones used in residential kitchens and bathrooms. It looks stunning, lasts decades, and adds real value to your home. But it also weighs significantly more than most alternative countertop materials and that weight has practical consequences you need to understand before committing to a slab. At SF Marble and Granite, we've helped hundreds of homeowners navigate this exact question. This guide gives you the real numbers, explains what drives granite countertop weight, and tells you what to check before installation day. So, Is Granite Really That Heavy? The short answer: yes, granite is genuinely heavy not in a "this might be a problem" way, but in a "you need to plan for this" way. Granite weighs between 15 and 20 pounds per square foot depending on thicknes...