Best Retrofit Concrete Floor Box Solutions for Modern Living
Finding the right retrofit concrete floor box can simplify installing power, data, and connectivity in garages, basements, or living spaces. This guide highlights five top options designed for concrete floors, covering a range of configurations, finishes, and installation requirements. Each product is evaluated on durability, ease of installation, and versatility to help builders, remodelers, and DIY enthusiasts choose the best fit for their project.
| Product | Brand | Key Feature | Finish/Type |
|---|---|---|---|
| Arlington FLBR5420 | ARLINGTON | Recessed power and data, 5″ hole saw install | Black, recessed round |
| Leviton FBBOX-GY | Leviton | 2-Gang box with power and data options | Gray |
| RACO 5511 | RACO | Non-metallic PVC, concrete pour compatible | PVC |
| Bryant RF400 | Bryant Electric | PVC box with concrete protection, recessed receptacle | PVC |
| FBSC46 | FBS Floor Box Systems | Six-gang capacity, multiple knockouts | Painted interior |
Below are five concrete floor box options that balance practicality and value. Each entry links to an Amazon listing for quick reference, with installation notes drawn from the manufacturer’s specifications and common use cases in retrofit projects.
Arlington Flbr5420 Recessed Floor Box
The Arlington FLBR5420 offers recessed power and data with multiple cover colors for aesthetic integration. Designed for concrete floors, it installs via a 5-inch hole saw, making retrofits relatively straightforward. This unit is suitable where a clean, low-profile source of power and data is needed without protruding fixtures. The recessed design helps minimize furniture obstruction and reduces clutter under desks or workstations. Installers should ensure the surrounding concrete is prepared for a stable recessed box and verify compatibility with downstream outlets and data modules.
Leviton 2-Gang Concrete Floor Box System FBBOX-GY
The Leviton FBBOX-GY system is a 2-Gang concrete floor box designed for both power and data distribution. It requires purchasing the FBLEV-GY and a Leviton finished floor plate separately, and it features a 6.25″ tall box with provisions for power and data conduit reducers. This solution is ideal when you need a broader capacity for outlets and data jacks in a retrofit project. Plan for additional components and ensure proper alignment with floor plate finishes to achieve a seamless look.
RACO 5511 Non-Metallic Floor Box
The RACO 5511 is a non-metallic PVC floor box designed for concrete pours, with hubs for 3/4 and 1 inch conduits. It accommodates a minimum pour depth of 3 inches and offers a generous 117 cubic inches of capacity. This option is robust for retrofit installations where moisture resistance and long-term durability are priorities. Ensure the pour depth aligns with the box’s requirements and plan for grommets and conduit reducers that match your wiring needs.
Bryant Electric RF400 PVC Floor Box
The Bryant RF400 is a PVC floor box designed for slab-on-grade installations, featuring a quick and easy push-in leveling system and a recessed receptacle to minimize plug protrusion. It includes a pre-assembled flange, cover, and leveling ring for straightforward installation. This option is well-suited for retrofit projects where time-to-install matters and where furniture placement over the box is a consideration. Properly securing and sealing the unit helps prevent movement and moisture intrusion over time.
FBSC46 Floor Box System for Concrete Floors
The FBSC46 from FBS Floor Box Systems provides a six-gang capacity with 16 knockouts for 1″ conduits. The design includes non-painted knockouts to facilitate bonding and a painted interior for a professional, aesthetic finish. This option stands out when multiple outlets and diverse connectivity are needed in a single retrofit location. Ensure proper bonding and coating compatibility with the concrete pour and verify the interior finish aligns with project aesthetics.
Buying Guide
Key considerations for retrofit concrete floor boxes include capacity, finish, and installation requirements. Here are common perspectives to help you compare options:
- Capacity and layout: Choose based on the number of outlets, data ports, USB, or HDMI modules you need. Multi-gang boxes offer centralization, while single-gang options reduce footprint.
- Material and moisture resistance: PVC and non-metallic designs resist moisture and corrosion in damp environments. Metal boxes may offer added durability where heavy foot traffic or furniture is expected.
- Installation depth and leveling: Some models require specific pour depths or leveling rings. Ensure your floor thickness and concrete strength align with the box specifications.
- Finish and aesthetics: Consider color and finish to match surrounding flooring and furniture. Recessed styles provide a cleaner look, while exposed boxes may be easier to access for future upgrades.
- Compatibility and accessories: Some systems require additional components, like finish plates or reducers. Plan ahead to ensure all pieces are compatible with your electrical and data needs.
- Code compliance and safety: Ensure the product meets local electrical codes for in-floor installations and that proper sealing is used to prevent moisture intrusion.
When selecting a retrofit concrete floor box, balance the installation complexity with long-term usability. Review the included accessories, required tools, and potential need for additional conduits or reducers. A well-chosen system provides reliable power and data access with a clean, professional finish that lasts for years.