Glass Recycling Break-Even Analysis: $118K Monthly Revenue Target

Fixed costs $39.8K Monthly overhead

Contribution margin 79.5% After variable costs

Break-even revenue $50.1K Monthly target

Break-even timing Month 1 Launch month

Break-even calculator

Test monthly revenue, variable expenses, and fixed costs to see how fast glass recycling clears break-even.

Lean Base Full

Monthly revenue Revenue sets the pool that pays direct costs and overhead. $ Low sales High sales Variable expenses These are direct costs that rise as processed glass volume rises. $ Low direct cost High direct cost

Money available to cover fixed costs $2,168,254 $2,673,167 revenue - $504,913 variable expenses

Margin ratio

81%

Covers fixed costs

Yes

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

Break-even chart Revenue Total costs

Which expenses stay fixed, and which move with sales in a glass processing plant?

Cost classification

Break-even only works if fixed overhead stays separate from costs that rise with units or revenue. Here, $38,800 of monthly fixed overhead should not absorb energy, labor, freight, or disposal charges that move with sales.

Expense	Cost	Break-Even Treatment	Common Mistake
Facility Rent	Fixed	Use $25,000 per month as overhead from Month 1 through Month 60.	Spreading rent across units and hiding idle capacity.
Utilities (Non-Production)	Fixed	Use $4,500 per month as overhead, separate from production energy.	Mixing office utilities with Processing Energy.
Processing Energy	Variable	Use 0.8% of revenue in break-even contribution math.	Treating energy like rent instead of sales-linked usage.
Maintenance & Repairs	Variable	Use 0.6% of revenue, and watch downtime pressure as volume rises.	Ignoring repair spikes when equipment runs harder.
Direct Processing Labor	Variable	Use product rates, such as $3.00 per Furnace Cullet unit.	Including salaried plant management in per-unit labor.
Outbound Logistics	Variable	Use 3.0% of first-year revenue, declining to 2.0% by Year 5.	Burying freight in fixed overhead.
Waste Disposal	Variable	Use product rates, such as $0.20 per Furnace Cullet unit.	Missing contamination issues that widen unit loss.
CEO and Plant Manager	Semi-fixed	Use salaried payroll as capacity support that scales slowly by year.	Treating management payroll as per-load labor.

How does break-even change from a lean glass recycling start to a full-scale plant?

Scenario table

Here’s the quick math: higher-volume scenarios spread fixed plant costs over more sales, and the product mix shifts toward better-margin outputs. That keeps break-even in Month 1, but the cushion gets stronger as throughput and buyer quality improve.

Planning assumptions only; actual results will move with supply quality, buyer specs, uptime, and contamination rates.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean start	$1.06M	$185K	$94K	82.5%	$779K	Clears break-even in Month 1, but this is the tightest cushion.
Base case	$2.67M	$451K	$127K	83.1%	$2.09M	Break-even stays comfortable, so uptime and contracts matter more than demand.
Full scale	$4.68M	$676K	$161K	85.6%	$3.85M	Break-even risk is low, but contamination and downtime can still cut into the cushion.

What breaks the glass recycling break-even plan?

Stress test

Year 1 clears break-even by a wide margin, but the cushion narrows fast if inbound volume slips or processing costs rise. Lower cullet pricing, rejected glass, higher fuel, and downtime are the first places to watch.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$118k	$940k cushion	Strong cushion if volume holds.
Revenue shortfall	Average monthly revenue drops 10%.	$118k	$834k cushion	A weaker inbound stream still clears break-even.
Fixed-cost pressure	Monthly fixed overhead rises 15%.	$136k	$922k cushion	Rent, utilities, and payroll matter more.
Margin pressure	Variable expenses rise 5 percentage points.	$126k	$932k cushion	Rejected glass and higher fuel squeeze margin.
Combined pressure	Revenue drops 10%, fixed overhead rises 15%, and variable expenses rise 5 points.	$145k	$807k cushion	Still above break-even, but the cushion tightens fast.

What should you verify before you commit to a glass recycling plant?

Founder checklist

Test the first-year offtake, feedstock quality, utility load, staffing ramp, fixed rent, and cash cushion before you sign land and equipment. The model shows Month 1 breakeven on paper, but cash still bottoms at -$3.368M in Month 10.

1Offtake Mix$12.7M Yr 1

Confirm buyers will take the 50,000 furnace cullet, 30,000 construction aggregate, 5,000 filtration media, 8,000 abrasive grit, and 2,000 glass powder filler units so the pricing stack holds.

2Feedstock QARoute gate

Inspect contamination standards before you accept routes, because dirty glass can hurt recovery and raise processing cost fast.

3Utility Load$10.5M capex

Check utility capacity before you install sorting, crushing, grinding, and fine grinding equipment, since the plant has to run the full line without delay.

4Staffing Ramp$660K Yr 1

Stage hiring against the first-year payroll so the CEO, plant manager, sales manager, four operations staff, and admin support match real throughput.

5Fixed Rent$38.8K/mo

Do not lock the $25,000 monthly facility rent until supply and offtake support the full monthly overhead, because fixed cost pressure starts on day one.

6Cash Trough-$3.368M M10

Make sure reserves cover the Month 10 low point and the capex wave, because paper breakeven in Month 1 does not pay the build bill.