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Dormer window — flat roof

Total Volume:
0.00

Note on taking measurements

All dimensions must be based on external measurements of the building or structure involved and not internal measurements.

Disclaimer:

  • These calculators are based on standard building shapes.
  • They should be used with care if the building you are measuring involves a combination of these forms or differs in a significant way from those in the calculator.
  • If in doubt seek advice from a qualified person or your Local Planning Authority.

    Other Volume Calculators

    Lean-to — single pitch roof

    Calculations needed for adding a Lean-to on a structure with a single pitched roof.

    Pitched roof — one end hip

    Larger structure require a more complicated calculation. One end hip.

    Pitched roof — two end gables

    Complete structure require a more complicated calculation.

    Pitched roof — two end hips

    Larger structure require a more complicated calculation. Two end hips.

    The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Department for Levelling Up, Housing & Communities. All content © 2022 Planning Portal.

    The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Department for Levelling Up, Housing & Communities. All content © 2022 Planning Portal.