Electron Metal’s Open four post racks offer more stability and flexibility than two post solutions. Electron Metal offers four standard stock models with adjustable depths. We offer customization, please contact us if you need different size options. Many vertical, horizontal, front to back and top management options are available. Buy a kit or customize your own.PRODUCT FEATURES:- Robust 12awg steel welded mounting rails - Heavy Duty welded base plates for great stability and anchoring - Universal Cage Nut Rails (ships with 100 cage nuts) - Easy to install with limited number of parts - Side mounting holes for attaching cable management or accessories - Ability to gang multiple 4 post racks together - Works with many 2 post rack and cabinet accessories - Easily customizable to your specific requirements - Compact shipping dimensions reduce freight costs