- The specifications or an approved equal must include the following: 24 sets of Employee Lockers with a Mail Slot --SKU# SL-4-121872-VP-MS-3W (schoollockers.com) Each set of lockers consists of 3 columns and 4 rows of lockers for a total of 12 individual lockers in each set. Overall size of each set is 36” wide x 18” deep x 78” high (including 6” attached legs); Individual locker size 12 inches wide 18 inches deep 18 inches high; 24-gauge Metal Lockers with 16-gauge welded channel frames; Door: 16-gauge with mail slot at the top of the door, and rectangular shaped perforations for maximum ventilation; Hinges: Two heavy-duty, double spun, full loop, tight pin five knuckle hinges; Powder Coated: Premium paint; Continuous Door Strikes: Prevent latch and frame damage; Have latching doors with paddle lock lockable hasps; Have a visible perforated 6-inch mail slot; 6-inch legs attached; Section connecting hardware must be included. Color: 1st choice Baltic Blue or 2nd choice Gray; Number plates numbered 1 up to 288; Must be shipped FOB Destination, prepaid and allow. Freight must be included in price.