c+CalcLantern

Driveway surface budget

Budget a rectangular drive plus a widened entrance apron.

How this works

Add rectangular main area to a trapezoidal apron area, multiply by your unit price, then add fixed costs.

Example

Using the example inputs, scenario surface budget is 3,680 currency.

Main length
15 m
Main width
3 m
Additional apron length
2 m
Outer apron width
5 m
Installed surface price
60 currency/m²
Other fixed costs
500 currency
Scenario surface budget
3,680 currency

Scope and assumptions

User-entered estimate, not a contractor quote. Apron is additional to main length; excludes unentered preparation and drainage.

OpenStax mathematics reference

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