The GD 4-series, 5-series and 6-series general purpose trailers have been designed from the ground up to withstand the rigours of the construction industry.

All models have fixed headboards and sides, with the choice of a drop tailboard or a loading ramp. Chassis, framework and panels are galvanized from maximum durability. The platform is hard wearing resin-coated high density plywood.

The beam axle system, designed and manufactured by Ifor Williams Trailers Ltd, features sealed, unitized wheel bearings and powerful auto-reverse brakes and is unequalled for strength and durability. The parabolic taper leaf spring suspension has proved itself to be the best in the business and helps to provide the secure, stable towing characteristics and longevity for which Ifor Williams trailers are renowned.

Commercial rated tyres have been chosen for their high carrying capacity and strength.