Four-gang boxes that aren't built for the load fail at the mount — the multiple device positions and conduit entries create torque that separates cheap boxes from the studs during installation or when the cover plate gets tightened down over multiple devices. 4-gang layout provides mounting for four devices side-by-side — the configuration required in kitchens, workshops, and commercial spaces where multiple circuits terminate in one location. PVC construction won't corrode in basement or exterior applications where steel boxes fail. Pre-attached nail tabs mount directly to the stud face without separate positioning — one drive per tab holds the box through drywall installation and device rough-in. Adequate depth for the wire volume that four circuits create in a single box location. Stand Stocked at Crofton Lumber and Akron Lumber.