Agree on the woven RV mats. The grass type are heavy as lead when they get wet and take a long time to dry. Re the ones at Walmart....I've seen several posts with unhappy owners saying they come apart very fast. You might check Camping World for one of their sales....we had one that we used about 6 years and it was like new when we included it with our HTT. I found our new one online - can't remember where - because we needed 18' long. Spending an extra $20 - $25 on the front end should get you a good mat that will last many years.