File Cabinet Sales Break-Even Analysis: $50K Monthly Target

Fixed costs $40.3K/mo Year 1 base

Contribution margin 81% After variable costs

Break-even revenue $49.7K/mo Monthly sales target

Break-even timing Month 14 Model crossover

Break-even calculator

Test whether monthly sales cover shipping, inventory, and the fixed cost base.

Lean Base Full

Monthly revenue Higher sales widen the cushion before fixed costs hit. $ Low sales High sales Variable expenses Inventory purchase cost and shipping rise with each sale. $ Low direct cost High direct cost

Money available to cover fixed costs $29,093 $35,917 revenue - $6,824 variable expenses

Margin ratio

81%

Covers fixed costs

$11,157 short

Fixed monthly costs This is the monthly overhead the margin must cover. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which file cabinet sales expenses are fixed, and which move with sales?

Cost classification

Break-even is only useful if each expense sits in the right bucket. For this model, variable costs move with revenue, fixed costs hold steady, and staffing steps up before revenue fully catches up.

Expense	Cost	Break-Even Treatment	Common Mistake
Inventory Purchase Cost	Variable	Use 12.0% of revenue in the first year, falling to 10.0% by Year 5.	Don’t treat stocked cabinets as overhead.
Shipping and Fulfillment	Variable	Use 7.0% of revenue in the first year, falling to 6.0% by Year 5.	Don’t bury freight inside warehouse rent.
Warehouse Lease	Fixed	Use $6,500 per month from Month 1 through Month 60.	Don’t scale it with orders until space is constrained.
E-commerce Platform Fees	Fixed	Use $2,000 per month as the base platform charge.	Separate base subscription fees from transaction fees if added later.
Digital Marketing Agency Retainer	Fixed	Use $4,500 per month as committed overhead.	Don’t call every marketing dollar variable.
Salaried Staff	Semi-fixed	Use about $23,750 per month in first-year payroll, then step up with planned hires.	Don’t smooth hiring evenly across sales growth.
Utilities and Internet	Semi-variable	Use an $800 per month base, with room for usage to rise as warehouse activity grows.	Don’t assume usage stays flat at higher order volume.
Software Subscriptions	Fixed	Use $1,500 per month from Month 1 through Month 60.	Don’t mix recurring software with one-time website development.

How does break-even shift across lean, base, and full file cabinet sales scenarios?

Scenario table

Lean stays under pressure because fixed costs eat most of the margin. Base reaches break-even in Month 14, while full scale builds a bigger cushion but also adds 12 FTE and more operating load.

Planning assumptions only, not guarantees.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch	$36K	$6.8K	$43.9K	81.0%	$-15K	Still loss-making, so demand proof comes first.
Base case	$88K	$16.1K	$58.1K	81.7%	$14K	Break-even lands in Month 14, so it supports controlled growth.
Full-scale expansion	$923K	$147.6K	$101.6K	84.0%	$673K	Profitable with a wide cushion, but 12 FTE adds complexity.

What breaks the break-even plan for file cabinet sales?

Stress test

The plan holds only if conversion, freight, and showroom costs stay near plan. A 10% sales miss, a 15% fixed-cost bump, or a 5-point margin hit quickly pushes break-even above the current base.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$497K	$138K gap	Break-even is close, so plan discipline matters.
Revenue shortfall	Revenue falls 10% from the base plan.	$497K	$174K gap	Lower conversion or demand widens the loss fast.
Fixed-cost pressure	Fixed costs rise 15% from the base plan.	$572K	$213K gap	Showroom and staffing overhead push break-even up hard.
Margin pressure	Variable expenses rise 5 points from 19% to 24%.	$530K	$171K gap	Freight inflation or discounting eats contribution.
Combined pressure	Revenue falls 10%, fixed costs rise 15%, and variable expenses rise 5 points.	$609K	$250K gap	Small misses can flip the model into a much larger loss.

Is this file cabinet business ready to lock in the warehouse lease and launch spend?

Founder checklist

Use the model to test demand, margin, and cash before you sign the lease or hire ahead of revenue. If traffic, mix, and reserve miss these marks, break-even slips fast.

1Visitor flow29.3K visits/mo

Confirm weekday traffic can reach this level, because 1.2% conversion only works if demand is real before the lease is locked.

2Buyer rate1.2%

Test that the site and showroom can hold the Year 1 visitor-to-buyer rate, since a small drop pushes break-even out fast.

3Product mix$351 avg unit

Validate the mix stays near 40% steel cabinets, 30% shelving, 20% mobile pedestals, and 10% credenzas, or the sales target rises.

4Fixed load$40.3K/mo

Check the $6.5K lease, $16.5K fixed overhead, and about $23.8K monthly payroll before you commit, because that stack needs about $49.7K in sales a month to break even.

5Supply chain19.0% of sales

Secure supplier terms and test freight lanes before ordering at scale, since 12.0% inventory cost plus 7.0% shipping has to stay tight for margin to hold.

6Cash runway$644K

Keep cash above the modeled minimum and watch Month 13 closely, because breakeven lands in Month 14 and a thin reserve can force cuts early.