K-Factor: A standard set by the Rack Manufacturers Institute for calculating column design and column slenderness.
KSI: A reading of pressure or stress in the testing of steel. PSI rated in 1,000 lbs. per square inch.
ex: KSI for most rack components is between 50 and 55 KSI. i.e. 50,000 lbs. per square inch.
Keyhole: The teardrop shaped holes that are punched on the face of interchangeable uprights for beams to attach to.
L-Rail: (versa rail, add-a-shelf) A metal bracket in the shape of an “L”, which attaches to an upright and an intermediate post (VPD) to segregate a bay with different size shelves. L-rails attach with two tabs at either end and re quire no hardware. Decking is placed on the L-rails to make a shelf.
Lumber Cradle: Structural steel channels welded in the shape of a large “U” to hold loose boards and other items that are broken bundles. Two lumber cradles are required at either end of the lumber.
LTL: Less than Truck Load. A less expensive method of trucking which combines many orders on one truck and takes product to a terminal for distribution onto another truck.