Paint Spray Booth Break-Even: About $101K/Month Revenue

Break-Even Metric Cards

Fixed costs $64.6K/mo Year 1 base

Contribution margin 68% After variable costs

Break-even revenue $95.0K/mo Monthly target

Break-even timing Month 1 Launch month

Break-Even Calculator

Break-even calculator

Use this to test whether monthly booth revenue covers direct costs and fixed overhead.

Lean Base Full

Monthly revenue Revenue sets the pool that has to cover direct costs and overhead. $ Low sales High sales Variable expenses Direct costs that rise with each booth sale, like materials, freight, install labor, and commissions. $ Low direct costs High direct costs

Money available to cover fixed costs $744,896 $1,035,269 revenue - $290,373 variable expenses

Margin ratio

72%

Covers fixed costs

Yes

Fixed monthly costs Monthly overhead the business must cover before profit, including payroll and facility costs. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which spray booth expenses are fixed, and which move with sales?

Cost classification

Your break-even is reliable only if steady overhead stays fixed and job-driven spend moves with revenue. Misclassifying labor, freight, or parts can make Month 1 break-even look safer than it is.

Expense	Cost	Break-Even Treatment	Common Mistake
Fabrication Facility Lease	Fixed	Use $12.5k per month through Month 60 as steady overhead.	Tying rent to booth revenue instead of capacity.
Design Software Licenses	Fixed	Use $2.2k per month as a recurring design overhead item.	Spreading licenses across only active projects.
Professional Liability Insurance	Fixed	Use $1.8k per month because coverage runs regardless of project count.	Dropping insurance in slow sales months.
Core Salaried Payroll	Fixed	Treat Year 1 management, engineering, project, sales, and compliance salaries as about $47.7k per month.	Modeling base salaries like hourly installation labor.
Installation Labor and Travel	Variable	Apply 6.5% of first-year revenue, declining to 5.5% by the fifth year.	Holding field labor flat while booth volume rises.
Freight and Logistics	Variable	Apply 4.0% of first-year revenue, declining to 3.2% by the fifth year.	Ignoring shipping scale on large booth jobs.
Sales Commissions	Variable	Apply 3.0% of revenue in each forecast year.	Counting commissions as fixed sales payroll.
Booth Parts and Components	Variable	Treat steel panels, fans, filters, lighting, controls, wiring, sensors, and gaskets as per-unit inputs.	Averaging parts spend across unlike booth types.

How does break-even change across lean, base, and full installation mixes?

Scenario table

Break-even moves with project mix because ticket size changes fast, but the fixed payroll and facility base stays near $70.8k a month. Lean work stays under that base, while the fuller run-rate clears it with a wide cushion.

Planning assumptions only; add subcontractor pass-through as a separate variable line when you quote each job.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean mix: woodworking plus automotive	$77k	$22.8k	$70.8k	70.4%	-$16.6k	Still below fixed cost, so one more project or a richer mix is needed.
Base mix: industrial crossdraft plus automotive	$110k	$32.6k	$70.8k	70.4%	$6.6k	Covers fixed cost, but the cushion is thin if installs slip.
Full run-rate: mixed project stack	$543.8k	$160.9k	$70.8k	70.4%	$312.1k	Well above break-even, so the main risk shifts to delivery capacity.

What breaks first if signed booth work slips before the pipeline fills?

Stress test

Base break-even sits near $101k a month. A 20% revenue slip, a 20% jump in fixed spend, or a 5-point margin hit can wipe out the cushion; stacked together, they turn launch timing into the main risk.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change; the $110k base month holds.	$101k	$9k cushion	Thin cushion if both projects do not sign.
Revenue shortfall	Monthly revenue falls 20% from $110k to $88k.	$101k	$13k gap	Below break-even; unsigned work hurts quickly.
Fixed-cost pressure	Fixed overhead rises 20% before volume catches up.	$121k	$11k gap	Added lease, payroll, and overhead push up the line.
Margin pressure	Variable costs rise 5 points from the base mix.	$108k	$2k cushion	Freight, labor, and rework eat the cushion.
Combined pressure	Revenue falls 20%, fixed spend rises 20%, and margin drops 5 points.	$362k	$274k gap	Stacked pressure overwhelms the launch plan.

What should a spray booth founder verify before signing the lease and hiring the first full crew?

Founder checklist

Don't sign the lease or hire the first full crew until signed work can cover the monthly fixed load and you still have the Month 1 cash cushion. This model needs about $110K in a base month, roughly $70.8K of fixed operating cost, and $1.123M in starting cash.

1Signed pipeline$110K base month

Verify that high-probability jobs can clear a two-project base month, because that is the cleanest test of real demand before you commit space and staff.

2Fixed base$70.8K/mo

Verify the lease, software, marketing, insurance, utilities, IT, and Year 1 payroll fit inside this load, because the operating base sits at about $70.8K per month before growth spend.

3Contribution83.4% CM

Here’s the quick math: Year 1 variable costs plus product overhead leave about 83.4% contribution, so project mix has to stay tight or margin will slip fast.

4Team ramp6.0 FTE

Keep the launch team at 6.0 FTE in Year 1 and avoid hiring ahead of estimator capacity and signed deposits, because payroll scales fast from there.

5Cash cushion$1.123M

Protect the Month 1 minimum cash need, because capex and early working capital hit before revenue settles and a thin cushion can break the launch.

6Supply timingLead times set

Document lead times for panels, fans, filters, controls, and vehicles before crews mobilize, because one late part can push installs past the opening month.