OneBoxForAll

OneBoxForAll is a manufacturer of expandable electrical junction boxes for new construction and retrofit electrical installation applications. Founded by Mike Simmons, an electrician with over 30 years of field experience, to solve the problem of stocking and replacing multiple fixed-size box types on job sites. The OneBoxForAll modular sidecar expansion system allows a single base box to be converted to a larger gang configuration in the field without removing the box from the wall. All OneBoxForAll boxes are UL Listed and manufactured from fire-resistant high-grade PVC. A system of five SKUs covers new construction and retrofit applications across multiple gang configurations.

Product Lines

OneBoxForAll New Work BaseBox (NWSK)

SKU NWSK. 1-gang, 22 cubic inches, 3.5" x 2.37" x 3.75". Four knockouts, captive nails for stud mounting. Expands to multi-gang by snapping NWSC sidecar add-ons onto the installed base box without removal from the stud. UL Listed, fire-resistant PVC.

OneBoxForAll New Work Sidecar (NWSC)

SKU NWSC. 1-gang expansion add-on for the NWSK BaseBox, 3.5" x 2.25" x 3.625", four knockouts. Snaps onto an installed NWSK to convert from 1-gang to 2-gang without opening the wall. Multiple NWSC sidecars accommodate larger gang configurations. UL Listed, fire-resistant PVC.

OneBoxForAll Old Work BaseBox (OWSK)

SKU OWSK. 2-gang, 32 cubic inches, 3.5" x 4.06" x 4.25". Four mounting wings for secure retrofit anchoring in existing drywall (vs. two on standard old work boxes). Eight knockouts. Gang configuration adjustable by loosening two screws in the field. UL Listed, fire-resistant PVC.

Why Contractors Specify OneBoxForAll

Electrical contractors specify OneBoxForAll because the expandable sidecar system allows the gang configuration to change after rough-in without cutting walls or replacing the box, reducing rework cost when device layouts change after framing. Five SKUs cover new construction and retrofit applications across multiple gang configurations, reducing the variety of box types on a service truck. The OWSK includes four mounting wings versus two on standard old work boxes for more secure drywall anchoring. All products are UL Listed and manufactured from fire-resistant high-grade PVC.

How to Choose a OneBoxForAll Product

The most important decision variable is whether the installation is new construction or retrofit. For new construction in open stud walls: start with the NWSK New Work BaseBox at every device location. If gang count increases after rough-in, attach NWSC sidecars to expand without removing the NWSK. For retrofit through existing drywall: use the OWSK Old Work BaseBox with four mounting wings and in-field gang adjustment. For new construction where final gang count is known in advance, attach the appropriate NWSC sidecars at rough-in rather than adding them later.

FAQs

Who founded OneBoxForAll and what problem does it solve?
Founded by Mike Simmons, an electrician with over 30 years of field experience. The system addresses the cost and rework of stocking and swapping multiple fixed-size junction box types, and cutting walls to replace undersized boxes when device counts change after rough-in framing.

Are OneBoxForAll boxes UL Listed?
All OneBoxForAll electrical boxes are UL Listed and manufactured from fire-resistant high-grade PVC, confirming evaluation to applicable electrical safety standards for junction boxes in residential and commercial construction.

What is the difference between the NWSK and OWSK boxes?
NWSK is a new construction box with captive nails for stud mounting, starts at 1 gang, expands with NWSC sidecars. OWSK is a retrofit old work box with four mounting wings for drywall anchoring, starts at 2 gang, adjustable by loosening two screws. Use NWSK for open wall new construction; OWSK for retrofit through existing drywall.

How many gangs can a OneBoxForAll box be expanded to?
The NWSK starts at 1 gang and expands with NWSC sidecar additions. Multiple sidecars accommodate larger gang configurations. The OWSK starts at 2 gang and is adjustable in the field. Refer to OneBoxForAll installation documentation for maximum gang count by configuration.

What box size is the OneBoxForAll NWSK?
22 cubic inches, 3.5" x 2.37" x 3.75", four knockouts, captive nails. The OWSK is 32 cubic inches, 3.5" x 4.06" x 4.25", eight knockouts, four mounting wings.

What material are OneBoxForAll boxes made from?
Fire-resistant high-grade PVC, meeting material requirements for electrical junction boxes in residential and commercial construction for code-compliant electrical rough-in work.