Bought this rug pad to fit under my 9'6" x 13'6" rug, also purchased on Overstock. The pad is just the right size; I had no need to trim or cut. I selected this rug pad after reading reviews on several competing items at Overstock, and this one appeared to be most highly recommended. My rug stays in place and is wonderfully soft to walk on. As usual with Overstock, it shipped and arrived within a matter of just a few days.
I tried to cheap out on the basic "waffle" grid rug pad. It was....ok. I finally decided to get a decent pad and yes, it DOES make a difference. The rug lays better and feels thicker. I had a difficult time determining the difference between "Deluxe", "Superior", "Supreme" felt pads but was able to find the thickness differences in the Q&A. I bought 2 pads for different size rugs and had to cut one down. It wasn't too bad with a scissors. (The edge is not as crisp or perfectly straight as the non-cut side) But it's underneath the rug and doesn't show. Yes, it was worth it!
This is a great rug pad especially for the money. At first when I laid it out on the floor, I was concerned that the wrinkles would show through on the sisal rug I was putting on top of it would show through. After a day or two of laying out flat and placing the sisal rug on top, no wrinkles. I had to trim off some of the sides of the pad because my sisal was a 9x12 and this pad is a 9x13, a little tough to cut through but not bad. Just shows that this is a quality product that I would purchase again.
I have purchased several carpet pad from Overstock and have been very pleased with all of them. I have several of this particular item and they have all been exactly as described, serve my purposes of non slipping or bunching, reduce tripping hazards, add cushioned support to the carpet all while protecting my wood floors. Because of the dual surface I am able to use them on carpeted floors as well. Definitely recommend and will purchase again as needed.
I have bought these rug pads before and will again. Pay attention to the height of your rug pad. Just because a pad is thicker isn't what you should base your purchase on. I wanted a lower, thinner pad in my DR so this is what I bought.