Before you lock in fixed costs, make sure the model can hold its Year 1 demand, margin, and cash targets. If those numbers do not stick, the commitment is too early.
1Demand Test$202 AOVTest paid traffic at about $45 CAC and keep going only if average order value lands near $202 and orders reach about 96 a month.
2Fixed Load$161K/yrKeep rent, software, support, and payroll near the $161K Year 1 case until sales prove they can absorb the load.
3Margin Floor17% variableKeep materials, labor, platform fees, and shipping near 17% of revenue, with shipping and packaging near 4%, and write return rules before launch.
4Source Flow3.0% matsVerify a repeatable stream of pre-owned or waste materials, plus cleaning, sorting, repair, and quality control, so feedstock stays steady without delays.
5Staff RampMonth 13Hold the lean team until order flow justifies the Month 13 marketing hire and the Month 19 support hire, or payroll will outrun output.
6Cash Buffer$605KKeep at least $605K in cash through Month 25, because the model does not reach breakeven until Month 26 and that reserve covers the dip.