Custom Shed Builder Break Even Point: About $58K Per Month

Fixed costs $37.3K/mo Year 1 base

Contribution margin 65% After variable costs

Break-even revenue $57.4K/mo Monthly target

Break-even timing Month 2 Launch ramp

Break-even calculator

Test whether monthly revenue covers direct costs and the fixed overhead this shed business carries each month.

Lean Base Full

Monthly revenue Revenue sets how much cash is left after direct costs. $ Lower sales Higher sales Variable expenses These rise with each project, mainly direct labor and sales commissions. $ Tighter costs Higher costs

Money available to cover fixed costs $398,825 $465,917 revenue - $67,092 variable expenses

Margin ratio

86%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead break-even has to cover. $ Lower overhead Higher overhead

Break-even chart Revenue Total costs

Which shed construction expenses are fixed, and which move with sales?

Cost classification

Break-even is only useful if overhead stays separate from job-level spend. Lease, insurance, software, and salaries set the monthly hurdle; materials, permits, subcontractors, and commissions move with each sold build.

Expense	Cost	Break-Even Treatment	Common Mistake
Workshop Lease	Fixed	Include $6,500 per month in the overhead hurdle before job profit covers anything else.	Spreading rent across each shed and hiding low monthly volume.
General Liability Insurance	Fixed	Include $1,200 per month as recurring operating overhead across the planning range.	Treating insurance as a per-job fee instead of a monthly commitment.
CAD Software Subscriptions	Fixed	Include $450 per month in fixed overhead because the subscription exists before the next sale.	Leaving software out because it feels small compared with materials.
Premium Cedar Framing	Variable	Apply $2,500 per unit when that build is sold, so gross margin reflects the actual job mix.	Treating lumber, doors, windows, or framing as overhead.
Direct Labor Subcontractors	Variable	Apply 10.0% of revenue in the first operating year, then use the model’s lower rates in later years.	Blending subcontractor labor into payroll and overstating contribution margin.
Permit Processing Fees	Variable	Apply 1.5% of revenue to each sold project because permitting scales with contracted work.	Putting permit-related fees in overhead and understating break-even volume.
Vehicle Maintenance and Fuel	Semi-variable	Start with the $1,500 monthly budget, then test mileage pressure as job count and delivery distance rise.	Assuming fuel stays flat when more builds add trips and site visits.
Lead Carpenter Staffing	Semi-fixed	Add salary capacity in steps: 1.0 FTE in the first year, 2.0 in years two and three, and 3.0 in years four and five.	Treating added skilled staff as per-shed variable labor.

How does break-even change from a lean shed pipeline to base and full capacity?

Scenario table

Lean clears break-even, but the cushion is thin. Base and full plans spread fixed payroll and overhead over more revenue, so profit scales faster than costs.

Planning cases only; mix, permits, labor, and material costs can move the result.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch plan	$81.1K	$28.9K	$37.3K	64%	$14.8K	Clears break-even, but the cushion is thin.
Base Year 1 plan	$219.6K	$78.5K	$37.3K	64%	$103.8K	Covers overhead with room left for rework and slack.
Full Year 5 buildout	$741.4K	$237.0K	$69.0K	68%	$435.4K	Strong overhead coverage; profit scales faster than fixed costs.

What breaks the shed business’s break-even plan?

Stress test

The base plan clears break-even, but it gets fragile fast if bookings slow, costs creep, or overhead rises. The real risk is fewer starts plus a weaker margin, because that pushes break-even up faster than revenue can recover.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$58K	$2.577M cushion	Base case clears break-even by a wide margin.
Revenue shortfall	Seasonal demand slips and revenue lands near $81K.	$58K	$23K cushion	Still covered, but the cushion is thin.
Fixed-cost pressure	Monthly overhead rises to $45K from insurance, lease, fuel, payroll, and marketing.	$69K	$12K cushion	A small delay in starts can erase the buffer.
Margin pressure	Contribution margin falls from about 65% to 55% on lumber, doors, windows, subcontractors, rework, and permit overruns.	$679K	$598K gap	Cost creep pushes break-even far above the low-revenue case.
Combined pressure	Bookings slow to about $405K while margin drops and overhead stays elevated.	$679K	$274K gap	This is the danger zone: lower volume and weaker margin leave no room for slippage.

What should you verify before you lease the shop and hire the crew?

Founder checklist

If you’re about to lease, hire, and buy gear, first prove the model can keep at least 2 builds a month and protect a mid-60s contribution margin. With minimum cash at $1.143M in Month 1, the launch only works if demand and capacity are already lined up.

1Signed Pipeline65 builds

Verify booked jobs or deposits support the Year 1 plan of 65 builds and at least 2 builds per month, or the revenue ramp will miss break-even.

2Unit MarginMid-60s CM

Verify pricing still covers materials, subcontractors, commissions, permit processing, cleanup, delivery, and disposal, because margin slip moves break-even out fast.

3Fixed Load$37.3K/mo

Verify lease, insurance, marketing, utilities, vehicle, CAD, and wages stay near this monthly load before you add more payroll.

4Crew Capacity2 builds/mo

Verify the shop, truck, trailer, yard, and crew can finish at least 2 builds a month without overtime or rework, or the schedule will slip.

5Cash Buffer$1.143M

Verify opening cash can absorb the Month 1 trough, because the model’s minimum cash lands there before the business reaches breakeven in Month 2.

6Launch Spend$256.5K capex

Verify the one-time buys for fabrication gear, truck, trailer, tools, server setup, showroom model, dust collection, and saw are staged before ramp-up spend.