It required three men and a small boy to lay it flat. Within days this chair mat developed "dimples" where the chair wheels were located. I tried to go cheap and should have bought the more expensive rigid model.
If you need an inexpensive desk mat for your home office this is the one to get if you have low pile carpeting. I would not recommend it for a business office with heavy use.
Very disappointed with this one. Bought it because we needed one and it was on sale but it is very flimsy does not stick to the carpet (edges come up or catch on chair/foot) and does not stop ANY static electricty!
I had this floor mat on the carpeted floor of my home office for less than an hour when my desk chair (on wheels) had already pressed deep indentations into the mat. Even if my carpet pad is a little plush my carpet is not deep pile so this mat should not be indented. I guess it is not made of durable heavy duty plastic and does not have the strength to "hold up" a 140 lb person and their desk chair.