Chair Caning Break-Even Analysis: $104K Monthly Revenue Target

Fixed costs $9.1K/mo Year 1 base

Contribution margin 80% After variable costs

Break-even revenue $11.3K/mo Monthly target

Break-even timing Month 14 Cash break-even

Break-even calculator

This calculator tests monthly revenue, direct variable expenses, and fixed overhead against break-even.

Lean Base Full

Monthly revenue Revenue has to cover both direct work costs and overhead. $ Slow month Peak month Variable expenses Direct supplies, transit, and fees that rise with each chair. $ Low direct cost High direct cost

Money available to cover fixed costs $11,725 $14,667 revenue - $2,942 variable expenses

Margin ratio

80%

Covers fixed costs

Yes

Fixed monthly costs Rent, wages, tools, and admin costs that stay monthly. $ Lean overhead Heavy overhead

Break-even chart Revenue Total costs

Which chair caning expenses are fixed, and which move with sales?

Cost classification

Break-even is only useful if fixed expenses stay in overhead and revenue-linked items stay in contribution margin. For this model, materials and sales fees move with jobs, while rent, core wages, and monthly shop costs set the break-even floor.

Expense	Cost	Break-Even Treatment	Common Mistake
Workshop Rent	Fixed	Include $1,500 per month in fixed overhead.	Spreading rent across jobs and hiding the monthly hurdle.
Workshop Utilities	Fixed	Include $300 per month in fixed overhead for the planning range.	Treating the whole bill as usage-based without model support.
Master Craftsman Salary	Fixed	Include the $60,000 annual salary as recurring labor overhead.	Leaving owner-level production labor out of break-even math.
Apprentice Weaver, 0.5 FTE	Fixed	Include 0.5 FTE at the $35,000 annual rate in first-year overhead.	Counting apprentice time only when a chair is sold.
Raw Cane Strand	Variable	Include $5 per standard cane seat in unit-level variable costs.	Averaging material spend into fixed shop overhead.
Fine Mesh Cane	Variable	Include $10 per intricate pattern back in unit-level variable costs.	Using one material rate for simple and complex work.
Merchant Processing Fees	Variable	Deduct 2.5% of revenue when calculating contribution margin.	Ignoring card fees because no cash leaves at job completion.
Shipping and Transit Insurance	Variable	Deduct 2.0% of first-year revenue as a revenue-linked cost.	Treating one-time $18.2k startup purchases as normal monthly overhead.

How does break-even shift from a lean first year to a fuller fifth-year shop?

Scenario table

Break-even gets easier as more work flows through the bench and fixed labor is spread over more revenue. The lean case is close to the line, the base case builds a real cushion, and the full case has the strongest room for error.

Planning figures below are model assumptions, not guarantees, and actual results will move with job mix, timing, and referral flow.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean first-year ramp	$14.7k	$2.9k	$9.1k	79.9%	$2.7k	Near break-even, so cash stays tight.
Base Year 3 shop	$24.7k	$5.1k	$11.3k	79.4%	$8.3k	Clearer cushion, with profit covering fixed costs.
Full Year 5 capacity	$36.3k	$5.6k	$13.9k	84.7%	$16.9k	Strong cushion, if referral flow keeps pace.

What breaks the break-even plan if bookings slow or costs creep up?

Stress test

Year 1 revenue is $176k against $104k break-even, so the plan starts with a $72k cushion. Still, each extra $1,000 of fixed cost adds about $1,148 to break-even, and every 1-point margin loss adds about $121 more.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$104,000	$72,000 cushion	The plan clears break-even in year 1.
Revenue shortfall	Year 1 revenue slips to $146k.	$104,000	$42,000 cushion	Bookings still cover break-even, but the buffer shrinks fast.
Fixed-cost pressure	Monthly fixed costs rise by $1,000.	$105,148	$70,852 cushion	Rent, insurance, or payroll creep eats the cushion.
Margin pressure	Variable costs rise by 1 percentage point.	$104,121	$71,879 cushion	Small waste or rework pushes break-even higher each month.
Combined pressure	Year 1 revenue slips to $146k, fixed costs rise $1,000, and variable costs rise 1 point.	$105,269	$40,731 cushion	Slow bookings plus higher overhead can cut the cushion in half.

What should the founder verify before taking on the workshop lease and helper labor?

Founder checklist

Don’t commit until job flow, margins, and cash support the step-up. The model breaks even in Month 14, so the workshop lease and added help should wait until the 35-job monthly target and the Year 1 run rate look repeatable.

1Demand Proof48 jobs/mo

Verify referrals can hold the Year 1 run rate of about 48 jobs a month, because that is the volume behind the $176K revenue plan.

2Fixed Load$9.1K/mo

Check the shop can carry about $9.1K a month in fixed load before extra jobs pay back, since rent, utilities, insurance, marketing, tool upkeep, and Year 1 payroll hit before profit.

3Margin Spread90.5% CM

Verify the standard cane seat still leaves about 90.5% contribution margin after $10 of direct materials plus shipping, processing, and show fees, because that spread funds payroll and rent.

4Staffing Ramp1.5 FTE

Make sure the master craftsman plus half-time apprentice can keep the Year 1 load moving, and add administrative help only when job volume supports the step-up.

5Cash Cushion$1.158M min

Plan for the cash trough in Month 49, because the model needs a minimum of $1.158M cash and the $18.2K startup purchases sit outside monthly break-even math.

6Launch Demand35 jobs/mo

Confirm pre-launch demand can support about 35 jobs a month and secure cane, reed, rush, cord, finishes, and adhesives before taking deposits, because stock-outs will slow delivery and push break-even past Month 14.