Just had granite countertop slab installed today. What is acceptable measurement of gap between wall and back edge(lenght) of slab? One partitian wall has a bit of a bow, but on either end the gap between wall and slab is 3/16 - 1/4 inches. The measurements of space on three sides of built in buffet countertop is the same. However, on the one slab installed in corner of wall and cabinetry, the fit is beautiful. I do not feel the measurements were accurately taken.

Got a picture?

And tell us about the countertops. Did you get cheap ones, do they have backsplashes, did they come out and measure, or did they use a laser system to measure, did you go to their property and pick out the slabs to use for the countertops??? Answers will help knowledgeable people to help you

Few walls are perfectly straight and some are crazy out of line. Usually, countertops have a backsplash. Just about any backsplash will cover a 1/4" gap. While it is possible for the c-top people to measure and make tops that will exactly fit to your out of straight walls, this is something that you needed to discuss with them beforehand. It would cost more to make them to fit the wall swails and the general assumption would be that there will be some form of backsplash.

The first thing is to decide if you are going to put a backsplash up. If so, then you have no problem, as the gap will go away once the backsplash is in place. You are going to be out of luck if you wish to complain to the countertop manufacturer as the 1/4" tolerance is more than close enough to be covered by a backsplash.

Edit to add: If you are not installing a backsplash, then you should be able to find a color matched grout (go to a tile store or to the countertop manufacturer) that can fill the gap and make is almost invisible.

This message has been edited. Last edited by: Jaybee,