FOR SALE HERE is a "USED" in PERFECT CONDITION...57 INCH LONG ....1/4 INCH THICK WALL...CENTER REINFORCED...4 3/4 INCH TOP to BOTTOM...3 1/2 INCHES FRONT to BACK...The OUTER STEEL BRACKETS ARE 55 INCHES APART and are 4 INCHES DEEP.... the INNER BRACKETS ARE 24 1/2 INCHES APART...HEAVY-DUTY and VERY STRONG....Please study the photos and then ask me your questions...Leave a contact phone number when responding....ASKING $85