This sheet metal is 3

Bathroom urinal partition panel includes patented seamless design providing patented seamless design provides integrity against water penetration to stop panels rusting from the inside

Bradley Mills Partition Aluminum Stirrup Urinal Privacy Screen Hardware Kit

or floor to ceiling mounted pilasters

which have rough openings that measure 15-5/8 inches in width by 11-1/4 inches in height by 4 inches in depth

ASI 74022-SSM Toilet Tissue Holder - Double - Satin Stainless Steel - Surface Mounted (ASI 39 Dry Wall Clamp & ASI R-009 Theft Resistant Spindles Not Included - Please Order Separately as Needed) Nominal Size-12" X 1.5" This sheet metal is 3ASI 74022 SSM Toilet Tissue Holder Double Satin Stainless Steel Surface Mounted (ASI 39 Dry Wall Clamp & ASI R 009 Theft Resistant Spindles Not Included Please Order Separately as Needed)