A set of six 6x6x4-inch PVC junction boxes typically costs between $25 and $50, depending on brand and retailer.

Pricing Overview

For a standard 6-inch x 6-inch x 4-inch PVC junction box, such as the Cantex model, individual boxes are priced around $5 to $10 each when purchased in multi-packs . Therefore, a 6-box set would generally cost $30 to $60, depending on the seller and any promotions. Online retailers like Amazon and Home Depot offer these boxes in packs of 5 or more, which can slightly reduce the per-box cost .

Factors Affecting Price

• Material: Plastic boxes are the most affordable, while metal or weatherproof boxes can cost significantly more, ranging from $70 to $450 for high-end outdoor-rated units .
• Size and Volume: Larger boxes or those designed for more conductors may increase the price. The 6x6x4-inch box has a volume of 132 cubic inches, suitable for standard indoor wiring .
• Brand and Features: Well-known brands or boxes with additional features like hinged covers, gaskets, or NEMA ratings may carry a premium .
• Installation: If you hire an electrician, installation costs can range from $100 to $300 per box, but DIY installation avoids this additional expense .

Recommendations

• For basic indoor wiring, a plastic 6x6x4-inch box set is cost-effective and code-compliant.
• For outdoor or exposed installations, consider weatherproof boxes with appropriate NEMA ratings, though the cost will be higher.
• Buying in multi-packs or from online retailers often reduces the per-box price. In summary, a 6-junction box set of standard 6x6x4-inch PVC boxes is generally priced around $30–$60, with variations depending on material, brand, and retailer .