Hammond 3U Solid Adjustable 2-Post Rack Shelf | 16-20″ Depth

The Hammond 3U Solid Adjustable 2-Post Rack Shelf | 16–20″ Depth (DNRMA Series) is a versatile, heavy-duty mounting solution designed for telecom, data, and industrial environments using 2-post racks. Engineered with adjustable depth brackets, this shelf accommodates equipment from 16″ to 20″ deep, making it ideal for installations where equipment sizes vary or are not finalized.

Built from 14-gauge steel, the shelf provides exceptional strength and durability, supporting up to 275 lbs of equipment—perfect for UPS systems, power supplies, and non-rackmount hardware. The solid (non-vented) surface ensures full contact support, preventing sagging or instability when handling uneven or heavy loads.

Designed primarily for 2-post relay racks, the shelf features movable side brackets that allow mounting inside or outside rack channels at multiple depth positions, giving installers flexibility across different rack layouts. The rugged black powder-coated finish enhances durability while resisting corrosion in demanding environments.

Key Features

• 3U rack height for larger equipment support
• Adjustable depth: 16″–20″ for flexible equipment compatibility
• Heavy-duty 14-gauge steel construction (~275 lb capacity)
• Solid surface design for maximum stability and load distribution
• Adjustable side brackets for multiple mounting positions
• Compatible with standard 19″ 2-post racks
• Black powder-coated finish for durability and corrosion resistance

The Hammond 3U Solid Adjustable 2-Post Rack Shelf (16–20″ Depth) is one of the most versatile and installer-friendly shelves available. It combines adjustability, heavy-duty strength, and full equipment support, making it ideal for telecom, industrial, and network environments.

If you want one shelf that adapts to multiple equipment depths without compromising stability, this is the smart, go-to solution.