For rectangular pools: measure the interior, then build a low-to-high budget from contractor unit prices.
How the estimate works
For a rectangular pool, the interior includes the sloped floor, both long walls and both end walls. Add measured steps, benches or spa area separately. The simplified straight slope does not model a hopper or complex shell. Supply local contractor prices; zero price inputs show geometry only and are not a free-work estimate. Structural work, access, permits and startup must be included in your allowances where applicable.
Do not drain a pool solely because of an estimate. Groundwater, shell and liner conditions can make draining unsafe. Arrange a qualified local assessment before a large drain.
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Units and assumptions
Volume uses US gallons; dimensions use feet and inches. All budget inputs use the same currency chosen by you. Replace demonstration values with measurements and quotes. Calculations are planning estimates, not equipment specifications or contractor offers.
Unit reference: NIST SI conversion guidance.
