Cable junction boxes typically range from $10 to $450 depending on type and material, while cable trays range from around $100 to $300+ per section for industrial-grade units.

Cable Junction Boxes

Price Range:

• Indoor plastic boxes: $10–$60 for standard sizes; small enclosures can start as low as $5.80, while larger polycarbonate models may reach $61.60 .
• Indoor metal boxes: $50–$220, offering higher durability and impact resistance .
• Outdoor/weatherproof boxes: $70–$450, designed for rain, UV exposure, and dust protection; premium NEMA-rated or IP66/IP67 enclosures are at the higher end .
• Retail examples: Lowe's sells standard junction boxes around $18, with a range of $13–$63 . Walmart and Amazon offer similar ranges, with some specialized waterproof or multi-port boxes priced $12–$55 . Installation Costs:
• Indoor installation: $100–$200
• Outdoor installation: $400–$450
• Complex outdoor setups can reach $1000 due to weatherproofing and additional wiring . Tips: Buying multiple boxes at once or opting for plastic for simple indoor projects can reduce costs. DIY installation is possible for $15–$32 per box, but permits and inspections may apply .

Cable Trays

Price Range:

• Wire basket trays (steel, pre-galvanized): $98–$153 per 10-foot section .
• Ladder-type trays (steel or aluminum): $191–$300+ per 10-foot section, depending on width and material .
• Wire mesh trays (6" wide, pre-galvanized): $107–$123 per 10-foot section .
• Accessories: Splice kits $21–$160, end caps $12–$37, support brackets $18–$72 . Material Considerations:
• Steel: High load capacity, moderate corrosion resistance, cost-effective for indoor industrial use.
• Stainless steel: Excellent corrosion resistance, ideal for harsh or outdoor environments, higher cost.
• Aluminum: Lightweight, corrosion-resistant, moderate to high cost.
• Fiberglass Reinforced Plastic (FRP): Non-conductive, corrosion-proof, higher cost, suitable for chemical or high-humidity environments . Applications: Cable trays are used in industrial plants, commercial buildings, data centers, and outdoor installations. Ladder trays are preferred for heavy or large-diameter cables, while perforated trays improve ventilation and heat dissipation .

Summary

• Junction boxes: $10–$450 depending on material, size, and weatherproofing; installation adds $100–$300+ .
• Cable trays: $98–$300+ per 10-foot section for industrial-grade steel or aluminum; accessories and supports add to total cost .
• Material choice, environment, and installation complexity significantly influence total costs. For bulk or specialized orders, suppliers like Platt Electric, Graybar, and Alibaba offer industrial-grade trays and junction boxes with pricing based on quantity and specifications .