Koppers treated wood crossarms are the durable and cost-effective answer for utilities from coast to coast.


Available in both Southern Yellow Pine and Douglas fir, these high quality dense fiber crossarms come in standard utility lengths (8' and 10') as well as custom sizes in lengths from 4'-28'. Our crossarms meet the AWPA Category Standards for pressure treating and are available in a variety of treatments.

Available Sizes

Length: Standard utility lengths (8′ and 10′), as well as custom sizes in lengths from 4′ up to 28′. Thickness: 3 1/2″ X 4 1/2″, 3 3/4″ x 4 3/4″, and 4 1/4″ X 5 1/4″, as well as custom sizes up to 8″ thick and 18″ wide.


  • Southern Yellow Pine
  • Douglas fir


  • CCA
  • Penta
  • CuNap- Copper Napthenate


Applicable Standards

  • AWPA Use Category System – UC3B Above Ground, UC4A Above Ground - Critical