NJ Quilter,
My DH built me a wooden version of this Joann's table with rollers. I have it on carpet and it does not budge-sometimes even difficult to push it aside. The table at Joann's was unstable so a friend copied the dimensions and made one from wood for his daughter and we copied his dimensions. It has 2 lower shelves and it opens to be 36' x' 60 ". Big enough for one of those huge cutting mats!! It folds down to 16 inches and get shoved aside when company comes and sleeps in that room. DH made it high enough so that I don't have to bend for anything (I am 5ft 8 in tall). I ABSOLUTELY LOVE IT!!!!