3/4" Square Steel 8927-6 (6 Bars) 27" Front Width x 23 " Back Width 15" Deep - 4 1/2 " Clearance 25 Lbs. Master Pack: 1 095192 170907 8930-7 (Shown) (7 Bars) 30" Front Width x 27" Back Width 15" Deep - 4 1/2" Clearance 27 Lbs. Master Pack: 1 095192 170952 8933-8 (8 Bars) 33" Front Width x 30" Back Width 15" Deep - 4 1/2" Clearance 33 Lbs. Master Pack: 1 095192 140306