the unit measures 17-1/4 inches in width by 27-1/4 inches in height and extends from the mounting surface by 4-1/2 inches

no matter how deep they are

Bradley S90-364 Dustcover/Efw Assy Replacement Part

The towel dispenser can accommodate one standard core roll of paper towels that is 8 or 9 inches in width by 800 feet long

Taymor Toilet Paper Holder, Maxwell, Single Post, (1) Roll, Polished - 2209079 Between-Wall Compartments the unit measures 17-1/4 inchesDispenser Product Grouping: Toilet Paper Holder; Toilet Paper Type: Standard Core; Product Series: Maxwell; Dispenser Capacity: (1) Roll; Dispenser Material: Zamac; Finish: Polished; Color: Silver; Dispenser Configuration: Horizontal Single Roll; Holder Style: Single Post; Proprietary Universal: Universal; Ligature Resistant: No; ADA Compliance: No; Height: 4 1 8 in; Width: 6 1 2 in; Depth: 2 5 8 in; Mounting Type: Wall; Includes: Mounting Hardware;