Shelf standards for built-in shelving or bookcases white size 48 inch shelf standards for built-in shelving or bookcases white size 48 inch 4 foot x 5/8 inch, white pilaster strip standard, for built in or bookcase applications, adjustable on 1/2 inch centers, use with 255 series supports. Pilasters for built-in shelving and book case applications. Adjustable on 1/2 inch centers. 19 gauge steel, 5/8 inch wide x 3/16 inch high.
For flush or surface mounting
Standard has screw holes and staple holes every six inches