I got a table at Sam's Club that folds in half for storage and has three adjustable heights. It is very sturdy and not all that expensive - $30-$40 range if I remember correctly. To add more height variations I just use pieces of 2X6 under each leg. When I sandwich a quilt for example I want it higher than when I am cutting etc. I don't need to move mine around so casters are not necessary but if you did want to move this table it would be easy because it doesn't weigh that much.