Gymnasium Mat Dolly - Horizontal Features: Framework Heavy Duty Steel Angle All electric welded construction extra braces of same steel angle (1) centered the 8' length (4) supporting the casters which are rubber tired - (2) swivel and (2) fixed which are heavy duty at 250" each caster Carrying capacity (4 by) - 1,000 Frame Construction .125 x 2"x2" Angle Iron Handle & Rail 1" STD. Pipe Deck - Clear Laquer 1/2" Crezon Plywood Castors - Front 2 - 4" Swivel, Rear 2 - 4" Fixed Rear Side Guides 2 - 3" Wheels (if required) Capacity 1000 Lbs. Under Stage Chair Dolly Model 4010 Features: Standard Sizes: Length 120 IN (3048), Width 40 IN (1016), O.A. Height 23 IN (584) Dimensions could vary for various locations and spaces available Materials: Frame Construction .125 x 2"x2" Angle Iron Handle & Rail 1" STD. Pipe Deck - Clear Laquer 1/2" Crezon Plywood Castors - Front 2 - 4" Swivel, Rear 2 - 4" Fixed Rear Side Guides 2 - 3" Wheels (if required) Capacity 1000 Lbs.