Tilt-Up Concrete Break-Even: About $201K Monthly Revenue

Fixed costs $25.2K/mo Monthly overhead

Contribution margin 69% After variable spend

Break-even revenue $36.4K/mo Needed each month

Break-even timing Month 1 Launch month

Break-even calculator

The model hits break-even in Month 1, so this calculator tests monthly revenue against variable expenses and fixed costs.

Lean Base Full

Monthly revenue Revenue is the money available to cover direct costs and overhead. $ Low volume High volume Variable expenses These direct costs rise with each project and each panel. $ Tight costs Heavy costs

Money available to cover fixed costs $1,686,450 $2,323,333 revenue - $636,883 variable expenses

Margin ratio

73%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead the margin has to cover. $ Light overhead Heavy overhead

Break-even chart Revenue Total costs

Which tilt-up concrete construction expenses are fixed, and which move with sales?

Cost classification

Break-even is reliable only when monthly overhead stays separate from project-driven spend. In this model, Month 1 break-even works because recurring lease, insurance, labor steps, materials, and revenue-linked fees are not blended together.

Expense	Cost	Break-Even Treatment	Common Mistake
Yard and Office Lease	Fixed	Include $12,500 per month in overhead before any panel volume is counted.	Spreading the lease across panels and hiding true monthly burn.
General Liability Insurance	Fixed	Include $4,200 per month as recurring overhead for the full planning period.	Treating the policy as project-specific when it runs every month.
Senior Project Manager payroll	Semi-fixed	Model salary in staffing steps: 1 FTE in the first year, 2 in Years 2 and 3, then 3 in Years 4 and 5.	Averaging management payroll per panel instead of adding headcount at capacity breaks.
Skilled Concrete Crew payroll	Semi-fixed	Add crew capacity in annual steps, from 12 FTEs in the first year to 36 FTEs in Year 5.	Calling all field labor fixed and missing the jump when crews scale.
Ready Mix Concrete	Variable	Apply per panel, such as $420 for an Industrial Warehouse Panel and $850 for a Data Center Heavy Panel.	Putting material pass-throughs into overhead and overstating contribution margin.
Site Insurance Premium	Variable	Calculate as 1.2% of revenue, so the charge rises with billed project volume.	Using a flat monthly estimate when the assumption is tied to revenue.
Heavy Crane Rental and Rigging	Variable	Apply as 8.5% of revenue in Year 1, falling to 7.5% by Year 5 as volume scales.	Treating crane standby and rigging as fixed overhead instead of job-linked spend.
Equipment Maintenance Plan	Semi-variable	Start with the $3,000 monthly plan, then add repairs when heavier site usage drives extra wear.	Ignoring usage-driven repairs and assuming the maintenance plan covers all volume growth.

How does break-even change across lean, base, and full tilt-up workload levels?

Scenario table

As the panel mix scales from Year 1 to Year 5, monthly revenue rises faster than fixed overhead, so the break-even line stays well below sales. The real risk is crew use and billing timing, not demand at these volumes.

Planning assumptions only; actual break-even will move with job mix, crew productivity, and billing timing.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean Year 1 mix	$916.7k	$110.0k	$147.3k	88.0%	$659.4k	Break-even is about $167.4k/month, so this case has a wide cushion.
Base Year 3 mix	$2,323.3k	$255.6k	$257.3k	89.0%	$1,810.4k	Break-even is about $289.0k/month, and the margin stays very strong.
Full Year 5 mix	$4,365.6k	$445.3k	$359.4k	89.8%	$3,560.9k	Break-even is about $400.4k/month, so scale works if crews stay fully used.

What breaks the break-even plan for a tilt-up concrete contractor?

Stress test

The Year 1 plan clears break-even with a wide cushion, but the risk sits in timing and margin control. Idle crews, crane standby, delayed concrete pours, rework, and slow receivables can shrink that cushion fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change in Year 1 revenue, margin, or fixed overhead.	$201,000/mo	$715,667 cushion	The base plan clears break-even with room.
Revenue shortfall	Year 1 revenue drops 20% from plan.	$201,000/mo	$532,333 cushion	Still above break-even, but timing gets tighter.
Fixed-cost pressure	Fixed overhead rises 15% to about $169,000 per month.	$232,000/mo	$684,667 cushion	Payroll, yard, and insurance pressure the floor.
Margin pressure	Variable expense rises 5 points, cutting contribution margin to about 68.2%.	$216,000/mo	$700,667 cushion	Crane, engineering, and rework pressure the margin.
Combined pressure	Revenue drops 20%, fixed costs rise 15%, and margin falls 5 points.	$248,000/mo	$485,333 cushion	Still clears break-even, but the cushion shrinks fast.

Can the backlog cover break-even before you sign the yard lease and hire the first crew?

Founder checklist

Don’t sign the yard lease or lock crews until signed or highly probable work clears about $201.3K a month. At the Year 1 mix, the model carries about $147.3K of monthly fixed load and a 73.2% contribution margin, so break-even depends on real backlog.

1Backlog Floor$201.3K/mo

Verify signed or highly probable work clears this monthly floor before you commit to the lease and core hires, because below it the model burns cash instead of building cushion.

2Fixed Load$147.3K/mo

This Year 1 base includes payroll and the $12.5K yard and office lease, so keep yard expansion on hold if the backlog wobbles.

3Contribution73.2%

Year 1 revenue is $11.0M, with about $1.19M in unit materials and 16.0% variable project costs, so any pricing drift quickly changes break-even.

4Crew Ramp980 panels

Check that 12 skilled crew FTEs and 2 site superintendent FTEs can deliver the 980 Year 1 panels without missed pours or set dates.

5Coverage Lock$4.2K/mo + 8.5%

Lock crane rental and rigging before you promise schedules, and confirm general liability at $4.2K a month plus site insurance at 1.2% of revenue, because lift delays stop revenue.

6Cash Buffer$1.083M

Stage the $605K capex for forms, trucks, rigging gear, equipment, tech, and yard storage, and keep at least $1.083M in Month 1 cash so the opening gap does not force rushed cuts.