Cost of drilling holes in cable trays

Drilling holes in cable trays typically costs between $2 to $10 per hole, depending on tray material, hole size, and labor complexity.

Factors Affecting Cost

Tray Material: Steel trays are harder to drill than aluminum or fiberglass, increasing labor and tool wear costs. Steel may require specialized drill bits or power tools, while aluminum and FRP are easier to handle and faster to drill. Hole Size and Quantity: Larger holes or a high number of holes increase labor time.

Standard small holes (10–20 mm) are faster and cheaper, while custom or oversized holes require more effort. Installation Complexity: Drilling on-site at elevated heights, in tight spaces, or around existing MEP systems adds labor costs. High-level installations or congested areas can double the labor rate.

Labor Rates: Typical electrical or mechanical labor rates for industrial projects range from $50 to $120 per hour. Drilling a single hole may take 5–15 minutes depending on material and access, translating to roughly $2–10 per hole.

Cost-

Saving ConsiderationsPre-Punched Trays: Ordering trays with factory-punched holes can reduce on-site labor and improve accuracy, often saving 20–30% of installation time. Batch Drilling: Drilling multiple holes in a single setup or using jigs can reduce per-hole labor costs. Material Choice: Aluminum or FRP trays are easier to modify on-site, reducing drilling time and tool wear.

Practical Example

For a medium-sized commercial project using steel ladder trays: Labor: 10 minutes per hole at $80/hour → ~$13 per holeTool wear and consumables: ~$2 per holeTotal estimated cost per hole: ~$15 For aluminum trays in a similar setting, the cost may drop to $5–$8 per hole due to easier drilling and faster work. In summary, expect $2–$15 per hole, with the exact cost depending on material, hole size, installation height, and labor efficiency. Pre-punched trays or optimized drilling setups can significantly reduce these costs.