One-minute setup, no tools needed. Opens from 3.9 in flat to 70.7 in shelf in 60 s. Folds to 96 % thinner than open size, slides behind doors or under beds. Frame uses 2 x thicker steel for steady 550 lb static load. Two lock wheels move 440 lb four leveling feet fix wobble. One-year support. Weight: 22.75 pounds. Length: 13.70 inch. Width: 31.50 inch. Height: 70.70 inch.