Best Flange Electrical Outlet Boxes in 2026

Durable high impact PVC construction

Can be used with 1/2 in. or 3/4 in. conduit

Includes 3/4 in. closure plugs and reducer bushings

Heavy duty 42 lb. mounting screws supplied

Mounts to wood or metal stud 25g

Extra thick PVC wall material creates stability and rigidity

Includes mounting lugs, closure plugs and self-threading ground screws for easy assembly.

Heavy duty die-cast aluminum construction with a weatherproof powdercoat finish to protect it from the elements. Keeps rain and dirt from disrupting any electrical circuit.

2" Deep. Cross Reference: SB350S / 30203 / WPB23

Carlon B114R-UPC Lamson Home Products Number-1G Old Work Box Pack of 3

3-3/4" x 2-3/8" rectangular Hole needed

Overall outside dimensions: 4.25" tall, 2.25" wide, 2.75" deep

Made in the U.S.A

UL Listed, Weatherproof

Diecast aluminum alloy, Durable powdercoat finish, Corrosion resistant

Provide a junction for conduits or can house a single wired device such as a receptacle or switch

Weatherproof outlet box designed to house a two-gang switch or receptacle configuration in moisture-prone and outdoor locations; includes three 0.50” diameter threaded holes

Die-cast metal construction effectively seals out moisture, dust, debris, and insects to protect outdoor receptacles

Perfect for outdoor and moisture-prone applications, such as warehouses, pool houses, greenhouses, garages, restaurants, patios, and more!

BUILT-IN VERSATILITY: Recessed duplex 15A TR device and adjustable steel box in brass finish. Safe and tamper-resistant 5A, 125V receptacle allows the plug to be concealed, especially for children. Can be used for power or data

INTELLIGENT DESIGN: Equipped with back and side knockouts for proper wiring access, whether for cable, plug, cord, USB, or ethernet. Protects electrical connection and prevents accidental disconnection

DESIGNED TO FIT YOUR SPACE: No unsightly plugs of different equipment on the surface of the floor as it also reduces plug protrusion. Features removable neoprene gaskets to allow for independent use of either side of the receptacle with the cover closed

For added convenience, covers are removable for electrical installation. Replace cover upon completion.

Bug Plugs ship installed to seal unused cord hole openings

Outer flange covers cut ends of siding

(Pack of 2) 1 Gang extending electrical boxes. Used for extending electrical boxes up to 1-1/2-inches

Automatically levels and supports outlets, switches, GFCIs, receptacles and other standard devices

Works with handy boxes and 4-inch square electrical boxes with plaster rings for single switches

FOR REMODELS AND RENOVATION: Our Newhouse Hardware 1-Gang PVC Old Work Electrical Outlet Box is a plastic junction box that's designed to work with non-metallic sheathed cable for your electrical equipment.

VERSATILE ELECTRICAL BOX: Our single-gang electrical box fits a variety of remodeling needs. You can use it as an electrical junction box, switch box, GFCI box, or duplex receptacle outlet box.

IDEAL FOR HOME IMPROVEMENT: Get a durable old work box that's usable for a broad range of refits in your home. It's designed for most residential home improvement and light commercial electric needs.

Product Type: Tools

Package Quantity: 1

Package Dimensions: 9.144 cms (L) x 12.954 cms (W) x 17.526 cms (H)

Carlon non-metallic boxes feature PVC construction for easier installation

Designed and listed for use with non-metallic sheathed cable in accordance with Article 314 of the National Electrical Code

All PVC boxes are permissible for use with 90 Degree C connectors

Single Gang PVC Electrical Switch/Outlet Box, Old Work ,Cut-in, UL Approved, Grey

The product is 18CUIN BLU SGL G Box

Easy to use

The product is manufactured in China

The product is SGL Gang ADJ Box

Easy to use

The product is manufactured in China

SAVES TIME AND MONEY: Why pull out the electrical outlet box? ReceptXtenders allows you to shim out those electrical boxes flush with the newly installed wall covering without removing or repositioning the existing electric box. It's easy to install.

FITS ALL TYPES OF ELECTRIC OUTLET BOXES: Fits all outlet box styles, PVC, Metal, Fiberglass. New work, old work. It's the only extension rings or extenders to work with every style box made. It's the best electrical outlet boxes extender out there.

FITS SNUGGLY: The patented rear flange allows ReceptXtenders electrical box extender to fit snugly against every style box to assure no gaps are present between the existing box and your newly installed extender.

The product is Super BLU RND Ceil Box

New snap-in bracket design

Box is made of rigid polycarbonate

This cover is for use with Bryant floor box #RF400 (sold separately)

Pre-assembled flange, cover and leveling ring for quick installation; floor box not included

Designed for slab-on-grade installation. Quick and easy installation is assured using a push in floor box leveling system

Price For: Each Material: Polycarbonate Item: Floor Box Cover and Carpet Flange Standards: UL File Number E 2969/ RoHS Compliance Width: 3/8" Number of Gangs: 1 Length: 6" Shape: Round Country of Origin (subject to change): Mexico

Cut-out template provided to assure proper sub-floor preparation

Solid brass floor plate

Brass cover provided to protect device when not in use

Cover/Flange Assem, Pfb Series, Br

Plastic Cover&Flange

Hubbell wiring device-kellems

COMBINATION PACK – This listing includes one 4" square electrical box and one 4" square two-gang duplex receptacle exposed work cover.

BOX – This 4" electrical box is designed to use to enclose electrical wire connections, receptacles, or switches. Constructed using the drawn method, this box is also ideal for exposed work applications.

COVER – This 4" square exposed work duplex receptacle cover includes the required hardware for mounting two receptacles. With its crushed corners, no bonding jumpers are required for this cover.

Provide smooth vertical mounting of Fixtures, receptacles, Faucets, etc. On sided structures

Paintable

Pre-molded with screw locations for devices

Can be used in both new and old work applications

Mount either horizontally or vertically on wood or steel studs

Includes breakaway flange for use in old work applications

Includes one round floor box flange

Made of high quality materials

Ulf listed. Junction box not included

High-quality electrical box extender suitable for a variety of applications: Our electrical box extender is designed to provide a solution for extending electrical boxes plastic to accommodate new or existing electrical wiring

Compliant with industry safety standards for a safe and secure installation: Unlike the other outlet spacers for electrical boxes BestMounts electric outlet box extender is compliant with industry safety standards and certifications, ensuring a safe and secure installation

Designed to fit easily and securely in single, dual, and triple gang electrical boxes: even with heavy equipment or electrical wiring inside, BestMounts electrical outlet box extender will remain secure and stable in a variety of electrical boxes

4-PACK: This Utility size electrical box box is designed to enclose electrical wire connections, receptacles, or switches. Constructed using the drawn method, this box is also ideal for exposed work applications.

KNOCKOUTS: Designed for versatile usage, this electrical outlet box, also known as a handy box, has ten 1/2'' knockouts. (There are six side knockouts, two end knockouts, and 2 top/bottom knockouts.)

MATERIAL: Crafted from 1/16'' thick pre-galvanized steel, this electric box is manufactured using premium quality materials to ensure durability. Acceptable for use in 2-hour fire rated walls.

Can be used in both new and old work applications

Includes captive nails and break away flange

Largest Single Gang Box Made at 24.5 cu. in. Capacity

Single Piece Carpet Flange

For TNB Steel City Floor Boxes

Duplex Lid Cover Openings