Manufacturers of Duct Spacers, Bore Spacers & Nonmetallic Cable Racks for the Power & Communications Industry

Underground Devices manufactures duct spacers and bore spacers for underground encasement of conduit and nonmetallic cable racking for use in power and communications manholes.

Underground Devices is the originator of both duct spacers and nonmetallic cable racking. This site contains general information about all of the products and services that are offered as well as technical information about our products.

  • Duct Spacers

    • Wunpeece Duct Spacers
    • Duct Donut Spacers
    • Duct Spacer Accessories

  • Bore Spacers

    Custom designed and manufactured to fit your requirements and specifications.

  • Cable Racks

    • Heavy Duty Nonmetallic
    • BNT Series Nonmetallic
    • Multi-Mount Support Arms
    • Saddle Racks