We just purchased new floor in our home office and I didn’t want to ruin it with my makeshift office chair (it does not have rollers) I purchased this great mat and it fits easily under the desk and extends far enough out that my chair slides easily front to back and side to side. I never realized the value of these mats until I had one for myself. I would highly recommend, after all we really don’t know how long we will need to work from home. A small investment to protect a very expensive floor, thanks Wayfair!!