See how many cars a day it takes to service the loan.
High capex, low cost of goods, and a throughput ceiling. The economics live in the loan.
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The assumptions, benchmarks, and drivers behind your car wash projections.
A car wash is the clearest case of a business where the loan, not the P and L, is the constraint. Cost of goods is only chemicals and water, roughly 12 percent, so gross margin sits near 88 percent, but the site and equipment cost several hundred thousand dollars and are financed over twenty years against the real estate. Capacity is one bay times cars per day times open days, with a throughput ceiling around two hundred cars a day, and utilization is the share of that ceiling actually sold.
A single-bay in-bay automatic does roughly $200,000 to $500,000 a year depending on traffic count and price point. Site work plus equipment plus water reclaim commonly runs into the high six figures, which is why the loan amortizes over twenty years rather than seven. With that structure, debt service coverage is the number that decides whether the project is financeable at all, and 1.25 is the floor. A ticket in the low teens with a membership plan attached is the common shape.
Traffic count at the site decides the ceiling and you buy it once, when you sign for the location. After that the only real levers are price and capture rate, and unlimited-wash memberships are how operators lift both at the same time by converting an occasional buyer into a fixed monthly payer. Because almost all costs are fixed, the model's break-even car count is the single number worth arguing about before committing capital.
Everything you need to know about car wash financial modeling.
The numbers that matter most for a car wash business, calculate any of them free.
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