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Calculations for a renovation or extension Openings, beams, extensions and lofts, priced from one form. A beam on its own One beam or one opening, sized and signed off. A new build The whole calculation package for a house built from scratch. Not sure yet Describe the project and an engineer tells you which route fits.

New build calculations

New build with other work

If your project mixes a new building with other structural work, start with the new build quote. If it does not fit, the Calcs-Online team will work out the right quote with you.

Get your price Ask us first

Before you start

Have these to hand for the new build quote:

  • The drawings for the new building
  • Anything you know about the ground, such as a ground investigation report
  • A short description of the other work, in case the form does not cover it