2-Post Open Frame Rack DNRRHDW Series

UL 2416 Rated 1,500 lbs (680 kg) Weight Capacity

When strength and reliability is the highest priority, be sure to choose the Data/Networking Robust Rack (DNRR) from Hammond Manufacturing. Designed to support your rack mount infrastructure, regardless of the application, the DNRR includes premium features not found on most other racks. 


  • The DNRR Heavy Duty Welded Rack Series boasts an industry leading 10-gauge welded steel frame which is the most robust steel rack on the market.
  • Our automated tapping process provides EIA compliant threaded rails on both the front and back to ensure flexibility when mounting equipment.
    • Includes marked rack unit dividers to aid in equipment mounting.
  • When connecting multiple racks together, numerous holes for mounting power distribution, cable management and other accessories are provided.
  • Bonding is a breeze with two (2) pairs of integrated 10-32 ground studs, spaced 5/8” apart. Stud pairs are conveniently located across from each other inside the rail channel. For added convenience, a pair is located near the top of the rack, while the other pair is located at the lower side.
  • To keep it looking great, the DNRR undergoes a three-stage paint process which includes a coat of premium smooth black powder paint.
  • In order to prevent any damage that may occur during transportation, we cover the rails and base of the DNRR with a thick layer of cardboard. 


  • Heavy duty, 10-gauge steel construction.
  • UL Listed 2416 load rated for up to 1,500 lbs (680 kg). Static Load tested to 6,000 lbs (2,721 kg).
  • TAA compliant for GSA Schedule purchases.
  • RoHS Compliant.
  • Manufactured in North America.

On a budget? The RB-2P 2-Post Rack Series is 12-gauge steel and supports 1,000 lbs. Click here to learn more.

Looking for even more weight capacity? The DRZ4 is UL rated for up to 2,000 lbs. Click here to learn more.



19" Rack Mounting 10-32 Double Tapped Rails

Part No. Overall Dimensions Rack Mounting Dimensions Rail Rack Basics
Height Width Depth Units Height Width Rail Depth Threading Alternative
DNRR63HDW 69.13 20.56 15.00 36U 63.00 19.00 3.00 10-32 -
DNRR70HDW 76.13 20.56 15.00 40U 70.00 19.00 3.00 10-32 -
DNRR77HDW 83.13 20.56 15.00 44U 77.00 19.00 3.00 10-32 RB-2P77
DNRR84HDW 90.13 20.56 15.00 48U 84.00 19.00 3.00 10-32 RB-2P84

23" Rack Mounting 12-24 Double Tapped Rails

Part No. Overall Dimensions Rack Mounting Dimensions Rail
Height Width Depth Units Height Width Rail Depth Threading
DNRR2377HDWB 83.13 24.56 15.00 44U 77.00 23.00 3.00 12-24
DNRR2384HDWB 90.13 24.56 15.00 48U 84.00 23.00 3.00 12-24

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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