Chassis Straightening Break-Even Analysis: $94K Monthly Revenue

Fixed costs $20.7K/mo Base shop overhead

Contribution margin 71% After variable load

Break-even revenue $29.2K/mo Revenue needed

Break-even timing Month 7 Launch ramp

Break-even calculator

Test monthly revenue against direct costs and fixed overhead to see how close the shop gets to break-even.

Lean Base Full

Monthly revenue Revenue creates the pool that covers direct costs and fixed overhead. $ Slow month Busy month Variable expenses Include parts, commissions, and shop costs that rise with revenue. $ Light costs Heavy costs

Money available to cover fixed costs $222,867 $295,500 revenue - $72,633 variable expenses

Margin ratio

75%

Covers fixed costs

Yes

Fixed monthly costs Use monthly payroll and overhead the shop must cover before profit. $ Lean overhead Heavy overhead

Break-even chart Revenue Total costs

Which chassis straightening expenses are fixed, and which move with sales?

Cost classification

Break-even is reliable only when fixed shop overhead stays separate from job-linked expenses. Here’s the quick math: lease, insurance, and core payroll raise the monthly hurdle, while materials, repair data, commissions, and utilities squeeze margin as revenue grows.

Expense	Cost	Break-Even Treatment	Common Mistake
Industrial Facility Lease	Fixed	Adds $12,500 per month before any repair jobs arrive.	Underestimating space needs for frame racks and vehicle staging.
Equipment Maintenance Contract	Fixed	Adds $2,200 per month to keep straightening equipment available.	Treating maintenance like optional upkeep instead of required uptime protection.
Garage Liability Insurance	Fixed	Adds $3,500 per month and does not fall when job volume dips.	Quoting insurance after the lease is signed.
Technician wages	Semi-fixed	Year 1 operating payroll is about $42,250 per month and steps up with staffing.	Hiring ahead of confirmed repair demand.
Welding Consumables and Specialized Parts	Variable	Runs at 14% of first-year revenue, so each job carries a material load.	Pricing labor hours without adding parts and consumables.
Original Equipment Manufacturer Data and Repair Specifications	Variable	Runs at 4% of first-year revenue for procedure access and repair data.	Missing subscription and procedure costs in estimates.
B2B Partnership Commissions	Variable	Runs at 8% of first-year revenue from referred work.	Overvaluing referral revenue before commission drag.
Shop Utilities and Waste Disposal	Semi-variable	Runs at 3% of first-year revenue, with usage rising as the shop gets busier.	Treating heavy shop use as a flat monthly bill.

How does break-even change across lean, base, and full-capacity chassis straightening volume?

Scenario table

Break-even moves mainly with repair volume, because fixed labor and facility costs are heavy. The lean case misses the line, the base case sits near Month 7 break-even, and full capacity creates a wide cushion.

Planning assumptions only; actual break-even will move with repair mix, technician throughput, and shop utilization.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean opening-month shop	$85k	$24.7k	$73.3k	71.0%	-$13.0k	Still below break-even; volume is too thin.
Base Year 1 run-rate	$109.9k	$31.9k	$73.3k	71.0%	$4.8k	Near break-even; Month 7 is the first clean signal.
Full-capacity Year 2 run-rate	$212.1k	$56.8k	$92.4k	73.2%	$62.8k	Wide cushion; keep racks busy and cycle time tight.

What breaks the break-even plan for a chassis straightening shop?

Stress test

The plan’s weak spots are fewer frame jobs, weaker labor recovery, and higher overhead. A 10% sales dip, a 5-point margin hit, or a 10% fixed-cost rise can shrink the cushion fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$986k	$113k cushion	The cushion is there, but it is not wide.
Revenue shortfall	Revenue falls 10% from plan.	$954k	$35k cushion	A small sales miss leaves very little room.
Fixed-cost increase	Fixed overhead rises 10%.	$1,033k	$66k cushion	Lease, insurance, or payroll creep pushes break-even up.
Margin pressure	Variable expenses rise 5 percentage points.	$1,011k	$88k cushion	Weak labor recovery and job costs cut the buffer fast.
Combined pressure	Revenue falls 10%, fixed costs rise 10%, and variable expenses rise 5 points.	$1,070k	$81k gap	Soft demand plus cost creep turns the plan negative.

Can this chassis straightening shop really reach break-even before you lock in the lease and racks?

Founder checklist

Before you commit to the lease and racks, prove the shop can reach about $94.5K in monthly break-even revenue and hold $418K of cash through Month 6. That means enough booked work, the right tech mix, and acquisition costs that stay near plan.

1Break-even sales$94.5K/mo

Verify you can book about 43 repair orders a month at a $2,198 average Year 1 ticket; that is the revenue floor this model needs to cover fixed and variable costs.

2Fixed load$20.7K/mo

Check that lease, maintenance, insurance, software, admin, and security stay near $20,700 a month, because every extra dollar pushes the break-even line higher.

3Contribution margin71% CM

Confirm Year 1 variable costs stay at 29% total, with 18% COGS and 11% other variable costs, so each billed hour still leaves enough to cover overhead.

4Tech ramp7 FTE

Verify the Year 1 mix of 7 FTE is filled with skilled structural techs before you buy more capacity; payroll runs about $42.3K a month, and repair cycle time should guide the next hire.

5Cash reserve$418K

Hold at least $418K through Month 6; that is the model's low point, and it has to absorb the $385K equipment and fit-out plan while revenue ramps.

6Launch demand$450 CAC

Verify paid leads can stay near a $450 customer acquisition cost against the $45K Year 1 marketing budget, and do not count on referrals until the workflow and payment terms are signed.