10 Best Low Profile Junction Box (October 2026) Expert Guide

Finding the right enclosure for your electrical components can be tricky when space is limited. A low profile junction box offers a compact solution that fits into tight wall cavities without compromising safety or functionality for your project.

We have reviewed ten top-rated options ranging from shallow remodel boxes to surface mount backboxes. Each product was selected based on user feedback, construction quality, and specific use cases like lighting, outlets, or DIY electronics.

Each pick below highlights key features and ideal applications. Please note that availability and pricing may change frequently. Always verify current specifications before purchasing to ensure compatibility with your specific electrical needs.

Top 3 Picks for Best Low Profile Junction Box

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Top 10 Best Low Profile Junction Box in 2026 Compared

The following table provides a side-by-side comparison of all ten selected products. Review the dimensions, material types, and specific applications to determine which box meets your spatial and safety requirements most effectively.

1. LeMotech Project Box – Best for DIY Electronics

4.5Editor scoreCheck price on Amazon

LeMotech Project Box

ABS plastic construction

Small compact size

Five piece pack

Easy to drill

The LeMotech Project Box is a top choice for hobbyists needing a compact enclosure. With a high rating from users, it offers a reliable solution for small electronics like ESP32 or PCB boards.

Pros

• Very affordable price point
• Durable ABS plastic
• Ideal for hobbyists
• Compact dimensions
• Includes multiple units

Cons

• No waterproof rating
• Small internal space

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Its ABS plastic construction ensures durability while remaining easy to cut and modify. The small size fits perfectly in tight spaces, making it versatile for various portable projects and custom electronics.

While it lacks weatherproofing, its utility indoors is unmatched for the price. The compact dimensions might limit larger wiring connections but are acceptable for signal and low-power applications.

Buyers seeking a budget-friendly option for prototyping should consider this pack. It provides five units, allowing for multiple projects without needing frequent reordering.

Perfect for Hobbyist Prototyping

The small footprint allows builders to integrate electronics into projects without adding bulk to the overall design.

Durable and Easy to Modify

Made of ABS plastic, this box can be drilled or cut without cracking, enabling custom modifications for specific components.

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2. 4 Inch Round Shallow Boxes – Best for Ceiling Fans

4.6Editor scoreCheck price on Amazon

4 Inch Round Shallow Electrical Boxes

Round shallow profile

For ceiling fans

Half inch deep

Knockouts for wiring

This 4-inch round shallow electrical box is designed for ceiling fan and light fixture installations. Its shallow profile ensures it fits in tight ceiling spaces without obstructing airflow or mounting hardware.

Pros

• Specifically designed for fans
• Shallow depth fits tight
• Multiple knockout options
• Reliable electrical housing

Cons

• Limited to light fixtures
• Round shape may not fit all

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Users appreciate the bottom knockouts which provide flexible wiring entry. This feature simplifies routing during installation, especially when dealing with existing ceiling wiring configurations.

The box is versatile for residential settings but is specialized for lighting. While it works well for its intended purpose, it may not suit non-round fixture needs.

Homeowners installing fans or lights should prioritize this box for its compatibility. It balances functionality with a minimal footprint to maintain ceiling clearance.

Optimized for Ceiling Installations

The design targets ceiling fans and wall lights, ensuring secure mounting in shallow cavities where standard boxes fail.

Flexible Wiring Options

Equipped with knockouts, this box allows electricians to choose the best entry point for wires during installation.

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3. 2 Pack Shallow Outlet Box – Best for Remodels

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2 Pack Shallow Outlet Box

Grey PVC construction

Low-profile depth

Fire rated 1-gang

Integrated clamps included

This 2-pack of shallow outlet boxes is perfect for remodel projects where wall cavities are tight. The low-profile depth makes it suitable for shallow drywall without requiring extensive wall removal.

Pros

• Ideal for tight spaces
• Fire rated safety
• Two pack included
• Secure wire protection

Cons

• Plastic material only
• Limited to old work

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Built from durable PVC, it resists corrosion and cracking over time. The integrated clamps allow electricians to secure the box quickly to existing studs during renovation.

While the plastic construction is standard for non-metallic boxes, it lacks metal strength. The fire rating ensures compliance with safety codes for residential switch and outlet installations.

Renovators needing a quick fix for outlets should choose this pack. It provides enough units for common projects and simplifies installation in finished walls.

Solves Tight Space Issues

The shallow design ensures you can add outlets without opening up large sections of the wall for deeper boxes.

Secure Installation Features

Integrated clamps and pre-drilled holes allow for a sturdy fit that holds switches and receptacles securely in place.

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4. Shallow Old Work Electrical Box – Best Value Remodel

4.8Editor scoreCheck price on Amazon

Shallow Old Work Electrical Box

1.24 inch depth

8 cubic inch capacity

ETL listed

Retrofit drywall installation

The Shallow Old Work Electrical Box stands out with a high user rating of 4.8. It offers a compact 1.24 inch depth ideal for renovations where wall space is strictly limited.

Pros

• High user rating
• Compact depth
• ETL safety listed
• Fire rated for walls

Cons

• Single pack only
• Standard plastic build

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It provides 8 cubic inches of interior space which is ample for standard wiring connections. The durable PVC construction ensures a lightweight enclosure that protects switches and receptacles well.

While it is ETL listed and fire-rated, the single pack may not suffice for large projects. However, the reliability makes it a trustworthy choice for single retrofit jobs.

Electricians looking for a safe and slim option will appreciate this box. It balances capacity with a slim profile to fit shallow cavities effectively.

Certified Safety Standards

This box is ETL listed and fire-rated, ensuring it meets strict electrical codes for residential and commercial remodels.

Efficient Capacity

Even with a slim profile, it offers enough space for necessary wire connections without overcrowding the interior.

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5. Leviton Surface Mount Backbox – Best Commercial Use

4.6Editor scoreCheck price on Amazon

Leviton Surface Mount Backbox

Surface mount housing

One point four five inch

White finish

Commercial quality product

Leviton is known for commercial quality, and this surface mount backbox delivers that standard. It is designed for places where adding a wall box is impractical or impossible.

Pros

• Professional finish
• Works with raceways
• White color matching
• Reliable brand

Cons

• Higher price point
• Surface mount specific

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The white finish matches Leviton wallplates for a clean look. Breakouts allow it to connect easily with common surface mount raceway systems for organized wiring.

While more expensive than basic PVC options, its build quality justifies the cost. It ensures longevity in demanding environments where standard boxes might fail.

Contractors needing a neat professional look should choose this box. It simplifies adding outlets or switches to finished surfaces without major modifications.

Seamless Wall Integration

The white color and professional design ensure that the backbox blends well with Leviton wallplates for a polished finish.

Raceway System Compatibility

Designed with breakouts, this box connects easily to raceways, keeping cables organized and protected along walls.

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6. 2Packs Junction Box IP65 Waterproof – Best Weather Resistance

4.7Editor scoreCheck price on Amazon

2Packs Junction Box IP65 Waterproof

IP65 waterproof grade

ABS plastic material

Fixed ear design

Black finish color

This IP65 waterproof junction box is ideal for outdoor or humid environments. It blocks splashing water, dust, and snow, keeping electronic projects like Arduino enclosures safe.

Pros

• High IP65 rating
• Resists moisture and dust
• Includes cables and gaskets
• Durable ABS build

Cons

• Heavier than standard
• Larger dimensions

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Made of high-quality ABS material, it offers excellent impact resistance. The package includes cable glands and sealing gaskets, simplifying the installation process for water-tight setups.

The fixed ear design aids secure mounting on walls. While larger than hobby boxes, the extra space accommodates power units and controllers efficiently.

Buyers needing outdoor protection should prioritize this unit. It combines weatherproofing with durability to ensure electronics remain functional in harsh conditions.

Superior Weatherproofing

With an IP65 rating, this box effectively blocks dust and water, making it perfect for outdoor or garage installations.

Complete Accessory Kit

Includes stainless steel screws, gaskets, and cable glands to ensure a secure and sealed installation out of the box.

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7. 1-Gang Old Work Shallow Outlet Box – Best for Single Outlets

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1-Gang Old Work Shallow Outlet Box

Built-in mounting tabs

Lightweight PVC

Four point two seven inch

ETL certified safe

This 1-gang shallow outlet box is designed for adding new sockets during renovations. Its built-in mounting tabs and snap-on connection make it quick to secure on existing walls.

Pros

• Easy snap-in mounting
• Fire rated safety
• Meets safety standards
• Compact footprint

Cons

• Limited to one gang
• No multi-pack option

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Constructed from durable PVC, it resists deformation and ensures reliable performance. The ETL certification means it meets strict safety standards for electrical applications.

While lightweight, it maintains structural integrity under normal conditions. The compact size ensures it fits without taking up excessive space behind drywall.

DIY homeowners seeking a simple addition of an outlet will find this useful. It offers a secure fit and professional finish for common household needs.

Quick Installation Design

Built-in tabs allow for a secure snap-in fit, reducing the time needed to mount the box in existing walls.

Trusted Safety Certifications

ETL certified and fire-rated, this box provides peace of mind regarding safety compliance and electrical protection.

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8. ICC Low Profile Surface Mount Back Box – Best for Data

5.0Editor scoreCheck price on Amazon

ICC Low Profile Surface Mount Back Box

For voice data

Compatible with NEMA

Adhesive backing option

Internal cable routing

The ICC Low Profile Surface Mount Back Box is ideal for voice and data applications. It supports adhesive backing and screw mounting, offering flexibility for different wall types.

Pros

• Perfect for data and voice
• Multiple mounting options
• Clean cable management
• High customer satisfaction

Cons

• Surface mount only
• Limited to data apps

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Internal routing keeps cables organized while brass inserts secure faceplates firmly. The design works well with standard NEMA boxes to ensure compatibility across systems.

Its high rating reflects customer satisfaction with ease of use. While limited to low-voltage data, it provides a clean solution for modern networking needs.

Professionals handling AV or data installations should consider this box. It offers reliable performance and a tidy finish for surface-mounted connections.

Optimized for Data Needs

Designed for voice and data apps, this box helps manage cables cleanly without cluttering visible wall surfaces.

Flexible Mounting Solutions

Adhesive backing or screws can be used for installation, making it adaptable to various surface types and user preferences.

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9. ARLINGTON Industries FSC405R – Best for Light Fixtures

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ARLINGTON Industries FSC405R Shallow Sconce Box

Shallow sconce box

Outlet handy box

Electrical products

Standard light fixture

The Arlington Industries FSC405R is a shallow sconce box designed for light fixture installations. It serves as a handy box for electrical products requiring compact enclosures.

Pros

• Designed for sconces
• Reliable brand
• Handles standard wiring
• Compact size

Cons

• Basic specifications
• Limited description

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Its design is straightforward for wiring connections and mounting. The shallow profile ensures that wall fixtures fit flush without excessive gaps behind the light.

While it is a standard product, its reliability is well-regarded. It is a solid choice for those installing sconces in areas with limited wall depth.

Contractors looking for a specific sconce box should choose this. It provides the necessary depth and structure for safe electrical light connections.

Ideal for Sconce Mounting

This box is specifically designed for sconce installations, ensuring that the light fixture sits flush against the wall securely.

Simple Functional Design

Its straightforward design allows for quick installation and reliable wiring, meeting standard electrical product requirements.

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10. Arlington TVL508-1 – Best for TV Mounting

4.7Editor scoreCheck price on Amazon

Arlington TVL508-1 Low Profile TV Box

For flat screen TV

Half inch drywall

Eight by five inch

Includes receptacle

This TV box is designed for installing flat screen TVs like LED or LCD. It fits shallow drywall and allows a clean look behind the TV without protruding.

Pros

• Designed for TV mounts
• Includes UL receptacle
• Paintable white trim
• Retrofit ready

Cons

• Higher price
• Specific to TV

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The kit includes a UL Listed Decorator style receptacle, saving time during installation. The white trim is paintable, helping it blend seamlessly into the wall finish.

While more expensive than basic boxes, the inclusion of a receptacle adds value. It provides a complete solution for power needs in shallow walls.

Buyers needing a TV power solution should choose this kit. It ensures a professional and code-compliant setup for modern home entertainment systems.

Complete TV Power Kit

The inclusion of a UL Listed receptacle means you have everything needed for a compliant and safe power connection.

Aesthetically Pleasing Finish

Paintable trim allows you to match the box to your wall color, creating a clean and professional installation look.

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Buying Guide – How to Choose the Best Low Profile Junction Box

Choosing the right low profile junction box depends on your specific application and wall conditions. Review the following factors to ensure safety and functionality.

Depth and Size

Depth is the most critical factor for low profile boxes. Standard boxes often protrude too much in shallow drywall. Look for boxes with depths around 1.25 inches or less to fit tight spaces.

Ensure the internal volume meets code requirements for the number of wires. A box that is too small may not be code-compliant or safe for connections.

Material and Durability

Most low profile boxes are made of PVC or ABS plastic. PVC is fire-retardant and resistant to warping, making it ideal for indoor electrical work.

ABS plastic is preferred for hobby or outdoor enclosures due to impact resistance. Check if the material is rated for your intended environment.

Installation Type

Decide between old work and new construction. Old work boxes have clamps or tabs to grip existing drywall. New construction boxes require studs to be exposed for direct mounting.

Surface mount boxes are useful if cutting into walls is not possible. These sit flush against the wall and provide a clean finish.

Safety Ratings

Always choose boxes that are ETL or UL listed. These certifications ensure the product meets strict fire safety standards.

Fire-rated boxes are essential for installations inside walls near heat sources. Avoid non-rated boxes for permanent residential wiring.

Capacity and Wiring

Check the cubic inch capacity to ensure it fits all your wires safely. Too many wires in a small box can lead to overheating.

Ensure the box has enough knockouts for your cable entry points. Flexible knockout options save time during routing.

Weatherproofing

For outdoor use, look for an IP65 rating. This ensures the box is dust tight and protected against water jets or rain.

Weatherproof boxes usually include gaskets and sealing rings. These features prevent moisture from entering the enclosure and damaging components.

Mounting Features

Integrated clamps make installation faster. Look for boxes with self-adjusting clamps that secure to studs or drywall easily.

Some boxes come with adhesive backing. This is ideal for lightweight data or voice boxes where drilling is not desired.

Price and Quantity

Consider buying packs of multiple units to save money. Small projects might only need one unit while renovations may need several.

Evaluate the cost against the quality and brand. High-quality brands like Leviton or Arlington often justify their price with better reliability.

How to Use and Care for Your Low Profile Junction Box

Before installation, turn off the power at the breaker panel to ensure safety. Use a voltage tester to confirm wires are not live before touching them.

Cut the drywall opening to match the box dimensions. For old work boxes, insert the box and tighten the mounting clamps to secure it.

Feed wires through the knockouts and strip the ends. Connect wires to the switch or outlet and tuck them neatly into the box.

Frequently Asked Questions

What is a low profile junction box?

A low profile junction box is a compact electrical enclosure designed to fit into shallow wall cavities. These boxes are essential for remodels where standard boxes would protrude too far.

Are low profile boxes code compliant?

Yes, as long as they meet safety standards like ETL or UL listing. Check local electrical codes to ensure the box size and rating match your specific requirements.

Can I use these boxes outdoors?

Only if the box has a waterproof rating like IP65. Standard plastic boxes are for indoor use and may fail in wet conditions without proper weatherproofing.

How deep is a typical low profile box?

Most low profile boxes are around 1.25 inches deep. This depth is specifically engineered to fit within 1/2 or 5/8 inch drywall layers.

What material is best for electrical boxes?

PVC is the standard for indoor electrical boxes due to fire resistance. ABS plastic is better for electronics enclosures where impact resistance is more critical.

Do these boxes come with receptacles?

Some premium kits like the Arlington TV box include UL listed receptacles. Standard boxes usually require you to purchase the outlet separately.

Final Thoughts on Choosing the Best Low Profile Junction Box

We have reviewed ten top options ranging from compact hobby enclosures to heavy-duty remodeling solutions. The Shallow Old Work Box offers the best budget value while the Arlington TV Box provides premium features.

When choosing, prioritize depth and safety ratings to ensure a secure installation. Match the box type to your specific project whether it be for data, lighting, or power.

Prices and availability change regularly so always verify current stock before buying. Following this guide will help you select the right box for your electrical needs.

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