Abstract: The invention comprises a clamp that is easily and quickly attached to planks such as those in a scaffold platform that is defined by plural planks laid side-by-side to define a platform in a scaffold structure. The clamp resides beneath the planks and is therefore not a trip-hazard for workers, and the clamp is readily adjustable to compress the planks to one another to stabilize the platform. The invention creates a stronger and more stable platform by eliminating the vertical deflection of each individual plank as well as any other relative movement. The inventive clamp features adjustable telescopic tubing which allows for the user to adjust the clamp to be utilized on a number of different scaffolding frame widths. Fine adjustments to the width of the clamp are made available through a threaded clamping nut that can only be adjusted using a ?th inch socket, which is a size typically carried by a scaffolding worker. A guard post apparatus may be attached to the clamps to allow for a safety railing.

Abstract: The invention comprises a clamp that is easily and quickly attached to planks such as those in a scaffold platform that is defined by plural planks laid side-by-side to define a platform in a scaffold structure. The clamp resides beneath the planks and is therefore not a trip-hazard for workers, and the clamp is readily adjustable to compress the planks to one another to stabilize the platform. The invention creates a stronger and more stable platform by eliminating the vertical deflection of each individual plank as well as any other relative movement. The inventive clamp features adjustable telescopic tubing which allows for the user to adjust the clamp to be utilized on a number of different scaffolding frame widths. Fine adjustments to the width of the clamp are made available through a threaded clamping nut that can only be adjusted using a ?th inch socket, which is a size typically carried by a scaffolding worker. A guard post apparatus may be attached to the clamps to allow for a safety railing.