Hi Dean. 90 mils is the only thickness for the small coin mat. I think where you may be confused is with how G-Floor measures the thickness of their mats. They include two measurements. The base thickness, which excludes the raised tread design, and then the overall thickness which includes the raised tread design. The small coin mats have a base thickness of 60 mils and an overall thickness of 90 mils. The large coin has a base thickness of 75 mils with an overall thickness of 110 mils.

Thanks for your reply. Your answers really help. There are two thicknesses advertised. One is 60 mils and the other is 75mils. I just wonder why there is the difference, and what advantage, if any there is to use one or the other?

Hi Dean. You ask some good questions. Yes, garage floor mats will expand and contract with temperature changes. If you have a standard 2-car garage with two mats laying side by side you should not experience any gapping at the seam if you use their center trim strip. If you don’t want to use the center trim strip and use the seam tape instead, you will not have gapping as long as you only use the seam tape at the seam. Bubbling or rolling of the mat usually only occurs on very warm days if the mat is held down by other heavy objects (not vehicles) that do not allow the mat to move slightly. The best way to avoid that is to install the mats on a warm day. Let them expand, then apply the seam tape and heavy objects. If you have three mats side by side, it is possible for the center mat to buckle if it does not have room to expand. This is when the center trim strip can come in handy. The idea is to leave 1/8″-1/4″ of space with the trim for the center mat to expand. I’m not sure what you are referring to with the standard and commercial grading. Can you be more specific?

Hi John. Just scroll back up to the article and click on the red underlined link that states price G-Floor mats here.

16×32. How much would that cost