84"L Heavyweight Single Slotted Satin Zinc Wall Standards. 11/16" wide. The satin zinc wall standards is made from 3/32" thick steel. The universal surface-mounted slots in standard are 1/2" long and spaced 1" on center. Countersunk mounting screw holes are 9" apart. 84"L x 11/16"W x 13/32"D.