>> Residential Home : Fiberglassbox™ Switch and Outlet Boxes
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Fiberglassbox™ Switch and Outlet Boxes Hide/Show Product Information

Since we began making the first fiberglass outlet boxes in 1958, we have been supplying the industry with high quality, nonmetallic residential electrical boxes designed and manufactured with you in mind.


Allied Moulded - Family of Fiberglass Wall and Ceiling Box Products Photograph

Allied Moulded - Photograph of wire installation through a fiberglass wall box Speed K Klamp

Photograph of Allied Mouded's fiberglass boxes in their industry exclusive reduced horizontal separation fire resistive wall rating application
  • Full line of products for new construction, old work and manufactured housing with the largest and most complete offering of box sizes and attachments in the industry.
  • Strong, impact resistant, fiberglass reinforced polyester construction withstands extremes in temperature. Boxes will not melt or distort in high heat or shatter in the cold.
  • Tapered and machine tapped device screw holes allow screw to be started by hand and speed installation time with high torque screwdrivers.
  • Nonmetallic Speed "K" Klamps™ positively secure wire--no tools needed. Should a knockout be inadvertently opened and not used, the "K" Klamp is considered sufficient closure of the opening per UL®.
  • Industry Exclusive Fire Wall Rating allows you to mount two Allied fiberglass boxes, up to and including our three gang, in the same stud cavity of fire rated walls without any additional fire resistive protection. Saves a minimum of 75% in material and installation costs.
Today, as we add products to our line to meet new applications, we are committed to responding to your needs and continuing the tradition of quality products for electrical distributors and contractors.


(click to link to pdf drawing for "Maximum Forward Adjusted Box Position" single gang through five gang products)


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