Marvelux 47" x 53" Heavy Duty Polycarbonate Office Chair Mat with Lip for Carpets | Transparent Carpet Protector for Low, Standard and Medium Pile Carpeted Floors | Multiple Sizes

I was worried reading so many reviews stating their mat cracked, chair couldn't roll easily or had large dents from wheels. This did come rolled and had a warning to unpack very carefully due to it's being rolled under pressure. Unpacking was challenging and it did go flat immediately once released from it's binding. It was also challenging to place this very unflexible mat into the tight corner my desk is in, but I did manage it and since then I'm loving it. It is solid, no denting and my chair rolls easily. I have a large chair and I'm a hefty woman, so that is all a huge plus. I think the most important element to success with this mat is to be sure you purchase one for the correct depth of carpet. The spikes on the back of this mat seem to be the exactly right depth for my carpet to reach the flat subfloor and maintain a nice flat mat. Carefully measure your carpet depth and order the right mat and all will be right with your world!

This expensive chair mat was perfect for the first week and then began to slip on the carpet. After about 8 months it has cracked in a number of spots and will have to be replaced. What a waste of money.

I used to have a vinyl chair mat that lasted a few years. It cracked right away and gradually got worse over time. The first things I noticed about this mat was the thickness and the sturdiness. The chair I'm on doesn't leave dents in the polycarbonate like it did in the vinyl. It hardly moves at all even over a week of use, where the old mat was constantly shifting around.I'm very pleased. I think this thing will last a long time. Just measure your area well and choose the correct size. The mat will do the rest.

I am a retired resident in a Life Care Community -- not a work-at-home type. I bought this chair mat to protect the carpet and to allow me easy movement at my desk. I also replaced the wheels on my chair for better load distribution -- oh, and the load is about 160 lbs.For the first several months the mat was great, but then I noticed small cracks developing. You can see them clearly in the third photo. Given the nature of the materials, these cracks have gotten worse, and will continue to do so until I am forced to replace it. I am very disappointed -- less than a year of use on a product that I thought would be good for five years or so.

This mat is definitely superior to many vinyl mats I have had in the past. As other reviewers have noted it does not dent, so you do not get trapped in one position, my chair rolls easily.I have now ordered my second mat, because the previous one developed about 15 parallel cracks, each about a foot long, in the center, after about two and a half years of use. That is still better than vinyl mats. Perhaps the perfect chair mat is an impossibility! ?The manufacturer has taken care of the previous problem of very sharp edges. The new mat has decent edges, rather than the knife-sharp ones the old one came with.

Crack happened within 3 months of ownership. Bummed, no warranty beyond 30 days.

I've used this mat for months and it hasn't dented, gotten groves, cracked, yellowed or even shifted out of place. It still looks brand new! If you need a heavy duty, transparent, full size office chair mat that actually supports weight and will see a lot of daily use- this is the one. It's well worth the price. I put the second one under my craft room work bench. If I drop a tiny project component, I can easily spot it on the mat!

Be careful opening it up since it will unroll like a tight wound spring and you can get hurt.!!!!Besides that, it instantly laid down flat, my chair is rolling freely and it is thick enough not to get indentations from the wheels like cheap maps get. Overall, highly recommended and I will replace the rest of the mats in office and working area with those.