Girder Clamps

Girder clamps create secure suspension and rigging points directly on structural steel I-beams and H-beams, without drilling or welding into the steelwork. They're the standard solution for hanging truss, lighting bars or tube from existing structural steel in grid installations, TV studios, exhibition halls and permanent venue builds.

MTN Shop stocks the full Doughty range, including adjustable girder clamps, Lindapter flange clamps, Gravlock couplers, marquee clamps, saddle clamps and scissor clamps, covering flange widths from around 75mm up to 300mm. Whether you need an adjustable clamp to fit a range of beam sizes or a Gravlock coupler to attach 48mm tube directly to an I-beam flange, this range gives technical crews every structural attachment option for safe, drill-free rigging.