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Calumet Adjustable Girder Clamp

Clamps directly to the underside of a steel I-beam on your studio ceiling. Adjusts to fit beams measuring 2 1/2" to 8" (6 to 20cm) wide and from 1/8" to 1/2" (3 to 12mm) thick. When the clamp is installed, the rails will run at a 90° angle to the supporting I-beam. If the rails are intended to run parallel to the supporting I-beam, a Back-to-Back Rail Clamp is required for each girder clamp. One clamp is needed for every 3' (91cm) of rail to be mounted to the ceiling.
Customer Reviews for Calumet Adjustable Girder Clamp
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