This sturdy steel constructed bracket bolts through walls with adjustment for wall thickness. Supports a 36 In. platform constructed of 2 In. thick planks. Holds 2 workers plus 75 Lbs. per 8 Ft. staging. { no more than 8 Ft. span between brackets}. You must use guard rails when installed over 6 Ft. above ground. This unit folds for compact storage and transportation.