My oak desk opening was a little smaller. Had to trim a little (1/2 inch). it fits tight like i wanted. I know when I ordered it i would need to do that.
Bought this because it has a "limited lifetime warranty." Thought at the time of course that "lifetime" means my lifetime. When I called Staples because the mat was cracking the customer service person politely informed me that "lifetime" refers to the lifetime of the mat not my lifetime. And the mfg says the lifetime of the mat is 3 years. How convoluted is that definition? So when buying understand that "lifetime" means "3 years." I asked them to stop advertising it as a "lifetime" warranty and instead say "3 year warranty."