Flammable Liquid Cabinet Break-Even: $676K Monthly Revenue

Fixed costs $54.4K/mo Overhead base

Contribution margin 75.4% After variable costs

Break-even revenue $72.2K/mo Monthly threshold

Break-even timing Month 2 Launch ramp

Break-even calculator

Use this calculator to test whether monthly revenue covers variable expenses and fixed monthly costs.

Lean Base Full

Monthly revenue Revenue sets the pool that can cover direct costs and overhead. $ Lower sales Higher sales Variable expenses Use direct costs that rise with each sale, like manufacturing, freight, and payment fees. $ Lower costs Higher costs

Money available to cover fixed costs $261,869 $317,417 revenue - $55,548 variable expenses

Margin ratio

82%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead the contribution margin must cover. $ Lean overhead Heavy overhead

Break-even chart Revenue Total costs

Which expenses are fixed, variable, or step up as cabinet sales grow?

Cost classification

Break-even gets more reliable when monthly overhead stays separate from unit-driven costs. Treat freight, payment fees, manufacturing, and certification as sales-linked, while rent and core software stay in the fixed base.

Expense	Cost	Break-Even Treatment	Common Mistake
Warehouse Lease	Fixed	Include $6,500 per month in the overhead base from Month 1 through Month 60.	Spreading rent across each cabinet and hiding true monthly break-even pressure.
Insurance and Liability	Fixed	Include $2,500 per month as required operating overhead for the planning range.	Tying insurance to order count instead of treating it as a base obligation.
E-commerce Platform Subscription	Fixed	Include $1,200 per month before calculating contribution margin.	Putting platform fees into variable expense just because sales happen online.
Utilities and Internet	Semi-variable	Model the $1,100 monthly base, then watch for usage changes as warehouse activity rises.	Treating the whole amount as perfectly fixed when volume can raise usage.
Wholesale Manufacturing Cost	Variable	Apply 10.0% of revenue in the first year, declining to 8.0% by the fifth year.	Putting product supply into overhead and overstating contribution margin.
Quality Control and Certification Fees	Variable	Apply 2.0% of revenue in the first year, declining to 1.2% by the fifth year.	Forgetting compliance-linked fees when estimating gross margin.
Freight and Heavy Logistics	Variable	Apply 5.0% of revenue in the first year, declining to 4.2% by the fifth year.	Treating shipping as overhead, which understates the cost of each sale.
Marketing Budget	Semi-fixed	Use the planned $120,000 first-year budget unless tracking each order through CAC.	Assuming every marketing dollar moves per order without a CAC model.

How does break-even change from lean launch to full-scale sales for flammable liquid storage cabinets?

Scenario table

As sales scale, fixed overhead gets spread across more orders, so break-even stays well below monthly revenue. The lean case tests launch discipline, the base case shows regional traction, and the full case shows the widest cushion.

Planning assumptions only; actual results will move with mix, freight, and overhead.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch case	$91.9K	$17.9K	$44.4K	80.5%	$29.6K	Above break-even, but the cushion is thin at launch.
Base regional traction case	$317.4K	$55.5K	$55.7K	82.5%	$206.2K	Regional traction covers overhead with room to absorb misses.
Full dealer reach case	$981.5K	$152.1K	$76.5K	84.5%	$752.9K	Broader dealer reach gives the strongest break-even cushion.

What breaks this break-even plan if sales slow or costs rise?

Stress test

The plan clears break-even now, but the cushion shrinks fast if quote flow slows, freight climbs, or discounts deepen. A 20% revenue drop still leaves room, yet combined cost pressure can push break-even above revenue.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$676K	$243K cushion	Revenue stays above break-even, but the cushion can shrink fast.
Revenue shortfall	Revenue falls 20% from the base plan.	$676K	$48K cushion	Lower quote flow can erase the cushion fast.
Fixed-cost increase	Fixed monthly costs rise 10% to $599K.	$744K	$175K cushion	Rent or insurance increases push break-even higher.
Margin pressure	Variable load rises from 195% to 245%.	$721K	$198K cushion	Freight and deeper discounts squeeze contribution margin.
Combined pressure	Revenue falls 20%, fixed costs rise 10%, and variable load rises to 245%.	$793K	$58K gap	Lower sales plus higher costs can push the plan below break-even.

Can this cabinet business clear break-even before you commit to the lease, stock, and hires?

Founder checklist

Before you sign the lease, buy the first inventory, or scale spend, make sure the model can clear fixed costs with real quote flow. The key test is whether monthly demand, margin, and cash hold up against about 52 orders a month and $778K of minimum cash through Month 6.

1Demand proof52 orders/mo

Check that marketing can produce about 52 monthly orders at a CAC near the Year 1 assumption of $150, or break-even gets pushed out fast.

2Fixed load$44.4K/mo

Add up lease, software, insurance, legal, utilities, and Year 1 payroll before you commit; this is the cash burn the business must cover every month.

3Margin check80.5% CM

Confirm wholesale cost, QC fees, freight, and payment fees stay at 19.5% of revenue; that leaves about 80.5% contribution to pay fixed costs.

4Cash runway$778K

Keep enough cash through Month 6, when minimum cash bottoms out at $778K, or inventory and payroll timing can strain the launch.

5Staffing ramp4 FTE

Match hiring to sales ramp: the model starts with 4 full-time roles in Year 1, while the support hire starts in Month 13, so don’t add headcount ahead of demand.

6Inventory setup$100K stock

Verify supplier terms, MOQ, lead times, and landed freight before buying the $100K initial stock, and confirm the warehouse can handle bulky cabinets plus racking, forklift, and fire suppression.