4-Post Open Frame Rack DC4R Series

2,000 lbs (907 kg) Weight Capacity

The Hammond DC4R, Open Rack series, is one of the most economical solutions to house IT equipment in wiring closets or data centers. When the wiring closet is locked and accessed by a limited number of people, full cabinets with locking doors and side panels may not be required, resulting in significant cost savings. If you're building a Homelab, the DC4R24 is ideal.

Standard Features: 

  • Available in 24U and 44U mounting heights.
  • Ships unassembled for easy handling and shipping protection.
  • The self-squaring design makes for a short assembly time.
  • For 44U height, add optional third or fourth pair of rails DC4RPR44 to provide additional adjustable mounting depths.
  • Optional solid side panels for added security.
  • Four (4) pairs of integrated 10-32 ground studs at the rack's front and rear. Stud pairs are conveniently spaced 5/8” apart and located across from each other inside the rail channel. For added convenience, two (2) pairs are located near the top of the rack, while the others are near the bottom. 
  • Rail depth L-bracket restricts the installer from over-extending the rack. This ensures the integrity of the rack.
  • One (1) set of two (2) horizontal cable manager bars. Additional cable manager bars are available by ordering part number DC4RSHCM.
  • Two (2) pairs of 19” mounting EIA-compliant rails.
    • Square hole rail version ships with a 50-pack of screws and cage nuts CAGKIT1032-50
    • 10-32 Threaded rail version ships with a 50-pack of screws SCREW1032-50.
    • Includes marked rack unit dividers to aid in equipment mounting.


  • Rack rails are constructed in 12-gauge welded steel. Base angles are constructed in 1/4" steel plates.
  • Finished in smooth RAL9005 black powder coating.
  • 2,000 lbs (907 kg) load rating.
  • TAA-compliant for GSA Schedule purchases.
  • RoHS and REACH Compliant.
  • Manufactured in North America within an ISO 9001:2015 certified facility.



Gallery Image

Adjustable Depth

Part No. Part No. Overall Dimensions Rack Mounting Dimensions Solid Side Panel (single)
Square Hole 10-32 Threaded Height Width Units Height Width Min Depth Max Depth
DC4R24 - 48.12 20.50 24U 42.00 19.00 24.00 36.00 DC4R2436SP
DC4R44 DC4RT44 83.13 20.50 44U 77.00 19.00 24.00 36.00 DC4R4436SP
DC4R4448 - 83.13 20.50 44U 77.00 19.00 32.00 48.00 DC4R4448SP

Fixed Depth

Part No. Overall Dimensions Rack Mounting Dimensions Optional Solid
Height Width Depth Units Height Width Depth Side Panel (single)
DC4R4429F 83.13 20.50 29.00 44U 77.00 19.00 29.00 DC4R4436SP
DC4R4436F 83.13 20.50 36.00 44U 77.00 19.00 36.00 DC4R4436SP
DC4R4442F 83.13 20.50 42.00 44U 77.00 19.00 42.00 DC4R4448SP

DC4R Specific Accessories

Part No. Description
DC4RSHCM 5 lbs (2.3 kg) Qty 2 additional lacing bars.
DC4RPR44 Additional pair of rails for DC4R 44U
RRLDCASTER 800 lbs (362 kg) capacty locking casters
RRHDCASTER 2,000 lbs (907 kg) capacty locking casters

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Data subject to change without notice.

Tags: Relay Rack, H-Frame, Server Rack, Equipment Rack, Network Rack, Skeleton Rack, Telco Rack, Two-Post Rack, knock-down, knock down, homelab, server racks