Decontamination Shower Systems Break-Even: About $113K/Month

Fixed costs $76.6K/mo Year 1 base

Contribution margin 68% After variable costs

Break-even revenue $112K/mo Revenue floor

Break-even timing Month 1 Launch month

Break-even calculator

Test monthly revenue, variable expenses, and fixed monthly costs against break-even for decontamination shower systems.

Lean Base Full

Monthly revenue Revenue is the cash pool that covers direct costs and then fixed overhead. $ Lower sales Higher sales Variable expenses Use direct costs that rise with each sale, like materials, testing, freight, and commissions. $ Tighter costs Higher costs

Money available to cover fixed costs $1,809,300 $2,280,083 revenue - $470,783 variable expenses

Margin ratio

79%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead base that contribution margin must cover. $ Lean overhead Higher overhead

Break-even chart Revenue Total costs

Which decontamination shower expenses are fixed, and which move with sales?

Cost classification

Break-even only works if fixed overhead stays separate from sales-linked costs. Here, Month 1 break-even depends on treating payroll and facility costs as monthly commitments, while commissions, shipping, and unit parts move with revenue or units sold.

Expense	Cost	Break-Even Treatment	Common Mistake
Manufacturing Facility Lease	Fixed	Include the $18,500 monthly lease in baseline overhead for every operating month.	Spreading the lease across units and hiding the cash burden when volume dips.
Product Liability Insurance	Fixed	Include the $4,200 monthly premium as required overhead before contribution margin.	Treating insurance as a percent of sales instead of a recurring monthly commitment.
R and D Software Licenses	Fixed	Include the $2,100 monthly license expense in operating break-even overhead.	Dropping software from break-even because it does not touch each unit directly.
Year 1 Salaried Operating Team	Fixed	Use the first-year salaried team at about $42,333 per month before benefits or payroll taxes if those are modeled separately.	Counting salaried roles as variable labor just because production volume grows.
Stainless Steel Frame	Variable	Apply the $280 per-unit frame charge to each Standard Combo Station produced.	Averaging the part into overhead, which overstates margin at low volume.
Thermostatic Mixing Valve	Variable	Apply the $380 per-unit valve charge to each Premium TMV Unit sold.	Using one blended material rate across products with very different bill-of-materials costs.
Sales Commissions	Variable	Model commissions as 4.5% of first-year revenue and 3.5% by the mature year.	Leaving commissions below gross margin and overstating contribution margin.
Facility and Administrative Utilities	Semi-variable	Combine the $1,800 monthly administrative utility charge with production-linked facility utilities at 1.5% of revenue.	Treating all utilities as fixed and missing the usage lift from higher production.

How does break-even shift from lean to base to full demand for decontamination shower systems?

Scenario table

Year 1, Year 3, and Year 5 are planning cases, not guarantees. Revenue grows faster than fixed overhead, so the lean case has the tightest cushion and the full case shows the widest break-even buffer.

Planning cases only; installation-heavy orders, freight, and inventory timing can move cash ahead of earnings.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean case: Year 1 launch mix	$1.20M	$379.7K	$76.6K	68.4%	$745.3K	Break-even is about $113K/month, so the lean case clears it by a wide margin.
Base case: Year 3 planned mix	$2.28M	$720.5K	$76.6K	68.4%	$1.48M	Break-even stays far below revenue, so the cushion widens as demand scales.
Full case: Year 5 scaled mix	$4.12M	$1.30M	$107.5K	68.4%	$2.71M	At Year 5 staffing, break-even is about $157K/month, still well below the plan.

What breaks the break-even plan for decontamination shower systems?

Stress test

The opening month has a wide cushion, but it can disappear fast if revenue falls to the break-even line, fixed overhead climbs, or discounting and freight squeeze margin. The main watchouts are slower installs, higher freight, and warranty reserve creep.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$113K	$1.09M cushion	Comfortable opening-month cushion.
Revenue shortfall	Monthly revenue falls to the break-even line.	$113K	$0 cushion	Any further slip turns launch into a loss.
Fixed-cost pressure	Fixed overhead rises from $76.6K to $107.5K per month.	$157K	$1.04M cushion	More overhead eats cushion faster than sales can replace it.
Margin pressure	Discounting, freight, and warranty reserves cut contribution margin by 5 points.	$121K	$1.08M cushion	Small margin leaks push break-even up right away.
Combined pressure	Revenue drops to break-even while fixed overhead and margin pressure both hit.	$170K	$57K gap	This is the point where the launch cushion gets burned off.

What should you verify before signing the lease and buying equipment?

Founder checklist

Before you commit, prove the Year 1 volume, cash, and staffing plan can carry the model. Break-even only looks real if the 4,750-unit forecast, the $76.6K monthly fixed load, and the $1.118M opening cash floor all hold.

1Signed pipeline4,750 units

Verify signed orders or committed buys can reach the Year 1 plan, because that volume is the base behind roughly 396 units a month.

2Fixed load$76.6K/mo

Check the lease, overhead, and Year 1 payroll together; the modeled load is about $76.6K a month, and the lease alone is $18.5K.

3Unit margin73% CM

Use the Year 1 mix to confirm contribution margin, meaning what’s left after direct costs, stays near 73% or fixed costs will squeeze cash.

4Team capacity396/mo

Test whether the Year 1 team can ship, inspect, and support about 396 units a month without delays, because throughput slips hit revenue fast.

5Cash floor$1.118M

Keep at least $1.118M ready in Month 1, since that is the modeled cash trough before the launch ramp catches up.

6Capex plan$742K

Stage the $742K capex plan and confirm supplier timing on the heavy parts, or you’ll lock cash into equipment before revenue turns on.