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The KORA SMB20195 Steel Stud Shallow Junction Box is designed for durability and efficiency, measuring 4” x 4” x 1-1/2” with a capacity of 21.0 cubic inches. It features convenient knockouts for easy wiring and installation, making it an ideal choice for electrical connections in steel stud applications.
The SMB20195 has a 21.0 cubic inch capacity. Under the Canadian Electrical Code (CEC), box fill calculations are required to ensure there is enough space for conductors, devices, and fittings without overcrowding. At 21.0 cu. in., this box is well-suited for standard device or splice applications — just verify your conductor count and sizes meet CEC box-fill requirements before installation.
The SMB20195 is specifically designed for steel stud applications and features mounting geometry optimised for metal-framed walls. While the box itself is a standard 4" × 4" square format, using it with wood stud framing may require a different mounting bracket or support. Contact us if you need a box solution for wood-frame or mixed construction.
Standard 4" square (4S) plaster rings, mud rings, and single- or double-gang covers designed for 1½" deep boxes are generally compatible with the SMB20195's footprint. The specific cover or device ring you need will depend on your finish wall thickness and device type. Reach out to our team and we can help you identify the right accessories for your application.
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