No. But I wouldn't GET new tops of any variety without first addressing a kitchen layout that forces one to HAVE a microwave on the counter. Post the current kitchen in a jpeg format, before you jump into a waste of money

I have charcoal colored quartz countertops in my kitchen and cream and white colored quartz countertops in my bathrooms. My microwave is on a shelf. I use silicone mats under my air fryer, crockpot and electric griddle. I use silicone mats under any hair styling tools that heat up. I love my quartz countertops, no chipping, no scratching, easy cleanup with dish soap and water!

I would never have quartz IMO if you need to prtect the counter from heat in a kitchen get another counter. I disagree with Jan as to built in versus counter MWs I think a MW on the counter is prcticl since just about the time you need to replace it the sizes will have changed I think at best a shelf . I have never found my MW gets hot on the bottom .

We have had our instapot, rice cooker, toaster, popcorn maker and microwave on our counter as well as all kinds of foods/spices and nothing has stained our white quartz countertop. I wish I could say the same for a light colored granite we had in a previous house.

Microwaves have been 24 inches wide for...................forever. A decent 1100 watt micro IS 24 inches and takes up far too much counter top real estate. Even an open shelf area of 24 inches is better and plenty of room if it should die. Sorry......but bet me the kitchen is not deserving of new tops, but with no picture? Hard to say with certainty : )

The casing on a microwave doesn't get hot......its cooking with molecules, and the reason high water content food heats faster.

Use a trivet or pad on ANY surface except soapstone, with pots that do get hot.

Jan: I love your post! I have a 25.5 inch wide by 22 inch deep shelf for my microwave. When my microwave has to be replaced, I will have plenty of room on my shelf to easily house another one. You are right: the microwave does not get hot when in use.

The only one of my appliances I’ve found to warm the counter is the crockpot. It warmed underneath, and the heat spread put from there, but no harm was done. I’ll set it up elsewhere from now on.