Middle Atlantic RLA Series Aluminum Two-Post Open Frame Rack

Tough, Anchorable Open Racks for Hefty Weight Capacity Needs


What's special about these open frame racks?

  • UL listed in the USA and Canada
  • EIA/TIA Compliant
  • Heavy Duty 3/16” thick extruded aluminum uprights are 12-24 threaded front and rear
  • Click for More Features
RoHS CompliantUL ClassifiedGreenguard Certification

If you're looking for versatility and durability at a great price, you can't go wrong with RLA Series aluminum two-post racks by Middle Atlantic.

View RECOMMENDED POWER comparison chart

Part #U/ RmsDescriptionRacking DimensionsColorWeight CapacityWeight CapacityRecommended PowerWeightPrice
MA-RLA19-124545U19" - 2 Post Open Frame Rack78-3/4" H x 19" WSilver400 lbs400 lbsN, P, T39 lbs
Manufacturer Direct
MA-RLA19-1245B45U19" - 2 Post Open Frame Rack78-3/4" H x 19" WBlack400 lbs400 lbsN, P, T39 lbs
Manufacturer Direct
MA-RLA19-1251B51U19" - 2 Post Open Frame Rack89-1/4" H x 19" WBlack1,600 lbs1,600 lbsN, P, T50 lbs
Manufacturer Direct
Part #U/ RmsDescriptionDimensionsColorWeight CapacityWeightPrice
MA-RLA-CC-Vertical Cable Manager
for 45U RLA series
82.7”H x 6”D x 5” WBlack-20 lbs
Manufacturer Direct
MA-U2MS2UVented 2 Rack Space Center Mount Shelf
View more info
3-1/2" (2 space)Black50 lbs8.7 lbs
Manufacturer Direct
to mount vertical power strips on rear rackrail (pair)
-Black-0.9 lb
Manufacturer Direct
  • Heavy Duty 1/4” thick aluminum top angle provides extra stability for cable ladders
  • Racks ship flat and are easy to assemble, due to their simple and convenient "knockdown" design
  • Includes 25, 12-24 rack screws
  • Lifetime Warranty
  • Made in the USA


Not only are these open frame racks TIA/EIA-compliant, they're also available in heights of 45 and 51 rack units. Both sizes feature 15' deep bases constructed of sturdy 1/4" thick aluminum, which include precut holes and screws for secure floor mounting.

45U Additional Features:

  • 45U racks have a UL listed 400 pound weight capacity
  • Available in 19” (standard)
  • Available in Black powder coat or silver brushed aluminum finish


51U Additional Features:

  • Available in 19” panel width
  • 51U racks have a static 1,600 lbs weight capacity, which maximizes floor space
  • Available in Black powder coat finish


Vertical Cable Manager (MA-RLA-CC)
Middle Atlantic cable manager for the 45 U RLA series racks features extensive cable pass-through points ,cable lacing points and a slid front door with a magnetic latch for convenience and durability.


  • 16-gauge steel
  • Solid steel hinged door with 3 point magnetic latch
  • 4” wide opening for cable pass through on the front of the cable manager
  • Abundant cable pass-through points on sides and back
  • 36 raised bridge lances for cable lacing
  • Lifetime warranty


Part # MA-RLA19-1245 MA-RLA19-1245B MA-RLA19-1251B
RU 45 45 51
Racking Width 19" [483 mm] 19" [483 mm] 19" [483 mm]
Overall Height 84.0" [2134 mm] 84.0" [2134 mm] 96.125" [2442 mm]
Overall Depth 15" [381 mm] 15" [381 mm] 15" [381 mm]
UL Listed Load Capacity 400 lbs 400 lbs 400 lbs
Static Load Capacity 1600 lbs 1600 lbs 1600 lbs
Material Extruded aluminum Extruded aluminum Extruded aluminum
Finish Silver brushed and anodized Flat black powder coat Flat black powder coat



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