Marvelux Office Chair Mat for Carpeted Floors, Heavy Duty Polycarbonate for Medium Pile Carpets, Rectangular 48" x 51" Clear Office Chair Carpet Protector

I put this mat in a small area where I have a computer/accessories wood work station. There are walls at the back and both sides. I have base board at the bottom of the walls. This mate measures 471/4 X 53 inches (at least mine did).I laid the mat on carpet and it was approx.1/8 inch from either side wall and touching the back wall. I then installed a wood molding on the mat at the bottom of the baseboard on the three walls. The mat will not move. It looks very nice and seems to be extremely sturdy. I cannot attest to durability since I have not had it down very long.I am approx. 210-215 lbs and that (with the chair) leaves an indentation in the mat but doesn't last. The mat is not very thick but has the "spikes" on the back to hold in the carpet.I would like to comment on the mat when received. It was in a box rolled up as some other reviewers have stated. And as others have said it will try to go back to it's FLAT condition when the securing wrapping is released/cut. It would be best to have someone help at this point but if you are like me-don't want to ask anyone for help unless absolutely necessary. If the wrapping is cut and there is nothing else holding it in the coiled condition it WILL open up with a LOT of force and could possibly cause harm.This is what I did: Took a rope and made a small loop in one end and placed the other end through that loop making a lasso. Before the mat wrapping is cut any-place the rope around the mat approx. in the middle. Look to see how the mat will open when the wrapping is cut. Tie the other end to some stationary hold down point. I did this in the yard (didn't have room in the garage). Then start slowly cutting the plastic binding from one side with one hand and hold the rope in the other hand. As you cut the binding the mat roll will start to open-give it a little slack by pulling the rope towards you an carefully relaxing to let it slowly open. It may jerk but if you have it tied down it cannot open fully. Then start cutting the wrapping from the other side from where you started and cut toward the middle. It will only open so far then you can pull the rope toward you and relax for slack until it is fully opened. I left it in the sun and it will take a while to get back in a complete flat condition but not long. Hope this helps others out there.This is a very good item and I highly recommend it.

I've had this mat for a little more than 1 year and it's already breaking and cracking from where my desk chair wheels sit. It's a strong and durable mat but not for anyone who regularly sits at a desk for (I'd say) 8 or more hours a day (IE: You work at home, like to game, etc.). I'd be curious to know how thick or thin the carpets of most of these 5-star reviews are and how many hours they spend at their desk, but in my specific case, I have carpeting that is about roughly 1/4 inch thick (give or take) and almost immediately in a few days noticed dipping in the mat (which then lead to the cracks/breaking of the mat). I should also note that the fragments can fly off due to how the material is and can have some decently sharp edges if you have small children/newborns.All-in-all not for me, at least not at this price point. I could've gotten a desk mat for half the price at Walmart which would've lasted me roughly the same amount of time which is honestly disappointing considering I was looking mostly for something that would last a long time.I will say though, if you don't sit at your desk for long periods, this mat could be worth it for you, it all just depends on what it is you're looking for. Also, understand this is just my one experience and I may not have the same environment as you (temperature, carpeting thickness/type, etc.), but I hope this is helpful for someone!Update: I ordered a follow-up mat once mine became unusable in hopes of maybe partnering it with an office carpet on top to make it last longer (I'm a lost cause), but before I could even order myself a carpet (within a couple weeks of having it), it LITERALLY started to crack and break once again... I want to emphasize this product is $110 and started failing in W E E K S.. 😐

I just received and installed this rectangular carpet protector. As a consequence I cannot comment on durability yet, but I suspect it will hold up. Please be aware in my comments below that my standards for purchases are high. Nevertheless I have assigned 5 stars, for now. It comes rolled up, but surprisingly it lays flat immediately. There's no waiting for it to flatten out. Some things that come up in other reviews are worth commenting on. Yes, it springs open, or can, when you cut the band that has kept it rolled up. My strategy was to put two cinched men's 36" leather belts for pants on either side of the band, fastened at their last notches. That stopped the spring soon after I cut the band. Then I removed one belt, causing a restrained spring on one side, and stepped away to remove the other. The pad sprang open fully but in a controlled way. As someone comments, the size is not a full 48"x60". Mine is 47.25x59. Good enough for my situation but maybe not everyone's. It's very close to the full size. A few people mention that their protector moves around. Mine does not. The round teeth on the underside are .4 cm, about 1/6th of an inch, with tapered ends. They are digging gently but sufficiently into my low nap carpet for the pad to hold firmly. There is no slippage when I roll back along the long axis and turn 90 degrees to work at my second desk. My carpet is quite thin. How it would hold on a thicker carpet, I can't say. I weigh 195 lbs; my desk chair is an old Herman Miller arm chair, heavier than the ergonomic chairs they are selling now and heavier than many current desk chairs. The roll along the surface is slightly bumpy, not absolutely smooth, probably because of the substantial weight of me and the chair and because the pad is flexible rather than solid and unbending. The functionality is certainly good enough. Whether the pad is both thick enough and of the right material to be durable remains to be seen. I'm happy to have it. I'm glad that I paid the extra cost for something this substantial.