SPN-44-312 Rack Depth: 31. 5" D Features: -Includes internal locking kit. -Compatible with MRK Series 44U rack enclosures - select appropriate rack depth. -Feature beveled corners to match the aesthetics of enclosure. -Each side panels adds 5/8'' to overall width. Product Type: -Side Panels. Dimensions: Rack Depth 26. 5" D - Overall Height - Top to Bottom: -83. 13 Inches. Rack Depth 26. 5" D - Overall Depth - Front to Back: -26. 5 Inches. Rack Depth 31. 5" D - Overall Height - Top to Bottom: -83. 13 Inches. Rack Depth 31. 5" D - Overall Depth - Front to Back: -31. 5 Inches. Rack Depth 36" D - Overall Height - Top to Bottom: -83. 13 Inches. Rack Depth 36" D - Overall Depth - Front to Back: -36 Inches. Rack Depth 42" D - Overall Height - Top to Bottom: -83. 13 Inches. Rack Depth 42" D - Overall Depth - Front to Back: -42 Inches.