Price of Masonry Installation Distribution Box

Masonry electrical distribution boxes typically range from $15 to $150 per unit, depending on size, material, and features.

Overview of Masonry Boxes

Masonry boxes are designed for secure electrical installations in concrete, brick, or block walls. Common types include:

• Steel welded boxes: Durable, heavy-duty, suitable for multiple gang installations. For example, the CM-MSB-5-FB 5-gang welded steel masonry box measures 9-1/8" × 3-3/4" × 2.5" and weighs 1.85 pounds, ideal for residential or commercial masonry applications .
• Partition boxes: Fit inside larger masonry boxes to separate circuits, such as the CM-MB-D partition, measuring 3.6" × 3.35" and weighing 0.2 pounds .
• Gangable boxes: Allow multiple boxes to be combined for expanded configurations, like the Hubbell RACO 1-gang masonry box with 22.5 cubic inch capacity .

Price Considerations

• Material: Steel boxes are more expensive than plastic or fireproof polymer options. Steel boxes typically cost $15–$50 for single-gang units and $50–$150 for multi-gang or heavy-duty welded boxes.
• Size and capacity: Larger boxes with more gang spaces or higher cubic capacity cost more due to additional material and labor for installation.
• Installation: If professional installation is required, labor costs can add $50–$200 per box, depending on wall type and accessibility.
• Distribution boxes (assembly boxes): For centralized electrical distribution, such as JUNON V12 series metal or plastic assembly boxes, prices vary widely based on rated current (up to 100A) and features, typically $50–$200 per unit .

Additional Notes

• Prices may vary by supplier and region. City Electric Supply, Centaur Installation, and JUNON Electrical are common sources for masonry boxes .
• For septic or utility distribution boxes (non-electrical), costs are higher due to excavation and installation, ranging $1,500–$3,000 including labor . This is relevant if the user is considering a broader “distribution box” installation beyond electrical applications.

In summary, a standard masonry electrical distribution box can cost $15–$150, with larger, multi-gang, or heavy-duty steel boxes at the higher end, while installation and specialized distribution boxes may increase total costs significantly.