How do you calculate the cost to coat fixture housings?

Multiply housings by the per-housing coating cost and the coated share, then add fixed line setup. For 600 housings at $6.50 each, 100% coated, plus $320 setup, variable cost is $3,900 and total is $4,220.

Why is the cost per housing $7.03 when the rate is $6.50?

The $7.03 spreads the $320 fixed setup across all 600 housings on top of the $6.50 variable rate. The bigger the batch, the closer per-housing cost falls back toward $6.50, which is why setup-heavy lines reward larger lots.

What is a typical powder-coat cost per fixture housing?

Standard single-color powder coat on a small-to-mid housing runs roughly $4-9 per part depending on size, pretreatment, and color. Specialty finishes, masking, or two-coat systems push that well above $10.

How does batch size affect coating cost per housing?

Variable cost stays flat per part but the fixed $320 setup amortizes over more units. Doubling the batch to 1,200 cuts the setup share from about $0.53 to $0.27 per housing, lowering the all-in cost.

What does full coating share mean?

It is the percentage of housings in the batch that get a full coat. Set it below 100% when some housings are partially masked, raw, or rework that skips coating, which reduces the variable cost proportionally.

Should I include pretreatment in the per-housing cost?

Yes, if your line cleans, phosphates, or pretreats before coating, fold that into the $6.50 rate. Leaving pretreatment out understates true finishing cost and makes the quote come in low.

Lighting, LEDs & Electrical Fixtures calculator

Fixture Housing Coating Cost Calculator

Powder coating and wet paint are a major finishing cost for metal LED fixture housings, and the line setup cost is fixed whether you run 50 housings or 5,000. This calculator totals the cost of coating a batch by combining the variable per-housing cost, the share of housings that receive a full coat, and the fixed cost of staging the coating line. Finishing supervisors, cost estimators, and buyers use it to quote jobs, decide batch sizes, and amortize setup. Because setup is fixed, the per-housing cost falls sharply as the batch grows, which is the whole argument for running larger lots.

What this calculator does

Estimate total coating cost for a batch of LED fixture housings. Covers powder coat, TGIC polyester, anodizing, or wet paint, including per-housing material and labor, the share of housings requiring full coating, and fixed setup costs for jig preparation and line changeovers.
Use this when costing a fixture housing production run, comparing powder coat vs. anodize cost, evaluating a new coating supplier, or reviewing where housing coating sits within total fixture BOM cost.
It computes total housing coating cost as variable per-housing coating cost across the coated share plus the fixed line setup cost.

Formula used

Variable coating cost = housings in batch x coating cost per housing x full coating share%
Total housing coating cost = variable coating cost + fixed line setup cost

Inputs explained

Housings in batch:
Coating cost per housing:
Full coating share:
Fixed line setup cost:

How to use the result

Use it when quoting a coating job, sizing a finishing batch, or deciding whether to run housings in-house versus outsourcing.
It assumes one coating cost per housing and a single setup; multi-color runs, masking, or two-coat systems each add their own setup and per-unit cost that this single-pass model does not capture.

Current U.S. benchmarks

The producer price index for copper and brass mill shapes stands at 559.593 (BLS, May 2026), up 76.8% from a year earlier. Quotes priced off last quarter's material cost miss this move. Global copper trades at $13,484 per tonne (IMF via FRED, May 2026).
Industrial electricity averages 8.66 cents per kWh across the U.S. (EIA, Apr 2026), up 5.5% from a year earlier. Energy-intensive steps carry this directly into unit cost.
The U.S. has 5,397 electrical equipment and appliances establishments employing about 369,437 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate the cost to coat fixture housings? Multiply housings by the per-housing coating cost and the coated share, then add fixed line setup. For 600 housings at $6.50 each, 100% coated, plus $320 setup, variable cost is $3,900 and total is $4,220.
Why is the cost per housing $7.03 when the rate is $6.50? The $7.03 spreads the $320 fixed setup across all 600 housings on top of the $6.50 variable rate. The bigger the batch, the closer per-housing cost falls back toward $6.50, which is why setup-heavy lines reward larger lots.
What is a typical powder-coat cost per fixture housing? Standard single-color powder coat on a small-to-mid housing runs roughly $4-9 per part depending on size, pretreatment, and color. Specialty finishes, masking, or two-coat systems push that well above $10.
How does batch size affect coating cost per housing? Variable cost stays flat per part but the fixed $320 setup amortizes over more units. Doubling the batch to 1,200 cuts the setup share from about $0.53 to $0.27 per housing, lowering the all-in cost.
What does full coating share mean? It is the percentage of housings in the batch that get a full coat. Set it below 100% when some housings are partially masked, raw, or rework that skips coating, which reduces the variable cost proportionally.

Last reviewed 2026-05-12.