Four-Wall EBITDA

The "four walls" are a shorthand for a single site, and managers use the measure to ask whether a location earns enough from its own operations before the wider company's financing, tax, depreciation and head-office costs. Begin with the location's net sales for a defined period, then subtract the cost of goods sold, direct labour, occupancy and other direct operating expenses.

Include the entire cost of operating that location, since rent, utilities, local insurance, payment processing, cleaning and repairs can all matter, and omitting a real recurring cost makes a weak unit look stronger. Labour is more than hourly wages, because a useful location view includes managers and attributable payroll taxes and benefits where relevant, and leaving these out can distort comparisons with a site staffed differently.

Keep head-office costs separate when the measure is designed to isolate unit operations, since corporate finance, central technology and executive salaries may not sit inside a single store's four-wall calculation. Treat shared services consistently, because if one chain records regional support in store expenses and another keeps it at corporate level, their four-wall margins are not directly comparable.

An unprofitable unit may need a pricing, staffing, lease or demand change, while a profitable unit may still fail to cover central costs or the capital needed to build the next store. Four-wall EBITDA answers only one part of the investment question.

Do not mistake EBITDA for cash flow, as it excludes capital expenditure and working-capital movements, so a restaurant replacing major equipment can show positive four-wall EBITDA while cash leaves the business. Financing can matter to an owner even though interest sits outside the measure, since debt service is a separate cash obligation, and tax expense does not vanish because the unit metric excludes it.

The measure is useful for comparing mature locations with similar business models, yet a new site may have launch costs and a ramp-up period while an older site may face deferred repairs. Document age and unusual items before drawing conclusions.

Define the denominator for the margin: four-wall EBITDA divided by the same site's net sales gives a four-wall EBITDA margin, and group revenue should not be used with one site's numerator. Review sales mix and occupancy together, because a busy store can still have a low margin if rent or staffing consumes too much of its revenue.

Location-level reporting depends on reliable cost allocation, so a central purchase shared among stores needs a consistent method if the charge is attributed to units, otherwise a location can look better merely because the cost was booked elsewhere. For franchise systems, distinguish corporate-owned units from franchisees, since royalties, advertising contributions and fees can differ and a franchisor's revenue model is not the same as a franchisee's store economics.

Regulatory presentation can also matter, as Planet Fitness described its four-wall EBITDA alongside other non-GAAP measures as supplemental rather than a substitute for GAAP profit. For an expansion decision, pair the measure with buildout cost, maintenance spending, payback, lease terms and group overhead, because the site result is a starting point for judging unit economics, not an automatic green light.