Use individually or in side-by-side ranges to eliminate unnecessary backs and end panelsIn a range installation, use steel end panels from one "starter" unit to form both ends of the range, and then complete the range with "adder" units. A cover channel is included with each adder to trim the connection point.Starter and adder units available in 2 types:B9009-010 (starter) and B9009-020 (adder): with backsB9009-030 (starter) and B9009-040 (adder): without backsBackless units have triangular corner gussets for structural integrity.Starters include 2 end panels; adders include 1.Units feature 6 adjustable shelves and 1 sloped base shelf; each measure 33 1/4W x 8 3/4"D. Shelves adjust in 3/4" increments and include 1 1/2"H back stop to prevent book spillover. Each shelf has a maximum weight capacity of 100 lbs.To create double-faced ranges with partitions, order one row with backs and one without. The single back panel becomes a common partition.Note: For double-faced ranges, order all units as "adders", then order double-faced end panels (keyword: Borroughs end panels) separately.Optional Shelf Adapter (keyword: Borroughs shelf adaptor) consists of a 34"L channel to use with the wire book support (keywords: Borroughs wire book support) to hold books firmly in place. Order 1 shelf adaptor for each shelf to be used with wire supports (do not use on top shelf). Optional Periodical Shelf (keyword: Borroughs periodical shelf) slopes, with a 1 1/16" retaining edge that slots onto uprights and rests on flat shelf below. Shelf measures 11H x 34"W.Assembly required.Ships via Truck. FOB: MIAll components finished in powder paint finishes. Available in 3 finishes: 01 black, 123 pebble, 181 mist grey.To view color choices, simply click on the View Swatches button located above.Once item is placed in cart, you will be prompted to specify your finish.Overall dimensions: 90H x 36W x 9 3/4"D