4" Square Metal Electrical Boxes
Our 4" square metal electrical boxes collection includes a range of electrical box options used in commercial, industrial, institutional, and exposed-work wiring applications. These boxes are commonly used as junction boxes, outlet boxes, switch boxes, and device boxes, depending on the installation and cover used.
This collection is organized mainly by sub-category so you can quickly find the right type of box for your job. Options may include drawn 4" square boxes, welded 4" square boxes, shallow and deep boxes, boxes with knockouts, and related accessories designed for metal conduit and exposed electrical work.
Common Uses for 4" Square Boxes
4" square electrical boxes are widely used for wiring devices, splices, junction points, and conduit runs. With the correct raised cover, plaster ring, or device cover, a 4" square box can be used for switches, receptacles, GFCI outlets, blank junctions, and other electrical devices.
Drawn vs. Welded 4" Square Boxes
Depending on the application, you may see both drawn and welded styles. Drawn boxes typically have smoother, rounded corners and a cleaner finished appearance. Welded boxes are often used in commercial and industrial settings where strength, depth, and job-site durability are important.
Find the Right Box and Cover
When choosing a 4" square metal electrical box, make sure to match the box depth, knockout configuration, conduit size, and cover style to your installation. Many 4" square boxes are used together with raised covers, blank covers, device covers, mud rings, or extension rings.
Brand Name Lighting carries electrical boxes and related electrical hardware for contractors, electricians, maintenance teams, and facility managers looking for reliable products at competitive prices.
