I used 2 Harbor Freight 18x30 furniture dollies (16.00 ea) 3 2x4’s 63”long each, 8 bucks of cheap indoor/outdoor carpet.....total time including stapling carpet was about 35-40 minutes including checking measurements 6-8 times! Total cost less than 50 bucks! Oh, and hung door hanger brackets too! The cart works PERFECT! No pressure on the rear glass at all!