Plastic Electrical Box Single Gang 20 cu. in. - Pack of 16

In this review of the Plastic Electrical Box Single Gang pack of 16, the bottom line is straightforward: this set is for installers and DIYers who need a durable, roomy junction box for new work that is quick to mount. The reviewer finds the 20 cu. in. capacity and captive nails make everyday electrical rough-in tasks faster and less fiddly, while the grey PVC construction holds up in 2-hour fire rated walls. For anyone installing standard non-metallic sheathed cable and common receptacles or switches, this pack delivers consistent, practical performance.

Key Features

• Large capacity: The 20 cu. in. interior gives ample room for multiple conductors so wiring connections are less cramped and easier to manage.
• Durable material: Molded from robust plastic, the box stands up to jobsite handling and is acceptable for use in 2-hour fire rated walls.
• Easy installation: Captive nails and positioning tabs let the box be hammered into the stud quickly, saving time on new work installs.
• Removable wiring tabs: Four knockouts provide convenient paths for feeding cable in and out without damaging the box.
• Wire capacity guidance: Capacity notes allow up to ten 14 ga, nine 12 ga, or eight 10 ga conductors, helping plan multiple-run installations.
• Pack quantity: Supplied as a pack of 16, it is convenient for larger projects or stocking a truck for common tasks.

Who It's For

This pack suits electricians, contractors, and serious DIYers doing new work where non-metallic sheathed cable is used. The captive nails and positioning tabs make it particularly useful when speed and repeatability matter on stud framing, and the 20 cu. in. volume handles multi-conductor junctions without resorting to larger boxes.

Those who need metal boxes for specific code or grounding requirements, or who work primarily on retrofit projects where old-work cut-in boxes are required, should look elsewhere. Also, if a recessed or decorative finish is needed for visible installations, a different box style may be preferable.

Pros & Cons

Pros

• Sturdy plastic construction that tolerates jobsite use and fits 2-hour fire rated wall applications.
• 20 cu. in. capacity keeps multiple conductors accessible for splicing and device mounting.
• Captive nails and positioning tabs speed new work installations and reduce wasted fasteners.
• Pack of 16 offers good value for larger projects or stocking a service vehicle.

Cons

• Designed specifically for new work; not suitable for retrofit or old-work situations without additional accessories.
• Plastic material may not be preferred where metal boxes are required by local code or for certain grounding needs.

Specifications

Brand	Airmont Products
Pack quantity	16
Capacity	20 cu. in.
Dimensions (L x W x D)	3-5/8' x 2-1/8' x 3-1/4'
Gang size	1-gang
Material	Durable grey plastic (PVC)
Mounting	Captive nails with positioning tabs for new work

Our Verdict

The Plastic Electrical Box single gang pack of 16 is a practical, cost-effective choice for new construction where non-metallic sheathed cable is used. It combines a roomy 20 cu. in. interior with installation-friendly features like captive nails and removable wiring tabs, making it a solid value for electricians and serious DIY installers who need reliable, repeatable performance on rough-in work.

Frequently Asked Questions

Can this box be used in fire rated walls?
Yes, the plastic construction is acceptable for use in 2-hour fire rated walls as described by the manufacturer.

How many conductors will fit in one box?
The listed capacity equates to up to ten 14 ga, nine 12 ga, or eight 10 ga conductors.

Is this suitable for retrofit installations?
No, these boxes are designed for new work mounting with captive nails and positioning tabs and are not intended as old-work cut-in boxes.