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Calcs-Online by PorthouseDean
I'm a homeowner Your quote, your payment and your calculations in one place. I'm a professional Every client's job, tracked from one login.
Structural calculations Extension, loft, wall removal, bi-folds, new build. Partnerships Architects and builders: same price, same date, FeeBuilder for practices. I'm not sure Send your drawings or describe it. We'll tell you what you need. Looking for information Do I need an engineer, what's in the price, how long it takes.

Worked from your drawings

Structural Calculations Online across the UK

Calcs-Online works from your plans and photographs and does not visit site. Your price comes first, and you choose the day the calculations arrive, ready to submit to building control.

Get your price Beam calcs only

How Online Structural Calculations Work

Our remote process keeps quality high, working from the drawings alone. Calcs-Online does not visit site.

  1. Share your plans

    Tell us about your project and upload drawings or photos, and you get your price.

  2. Engineer’s review

    Your engineer reviews imagery, measurements and any planning documents. We clarify anything over a quick call.

  3. Pick your date

    Your price comes with a calendar. Each date shows what it costs, and the day you pick sets the price.

  4. Calculations delivered

    Building Control-ready calculations and drawings arrive on the date you chose. We coordinate any revisions with whoever is building the work.

Building Control approval support, wherever you build

We work to local requirements and the typical housing stock wherever your project is. Our documents are ready for building control, and we answer its clarifications.

Popular Projects We Do Online

  • Remove a load-bearing wall (RSJ): open-plan living with correct beam sizing.
  • Bi-fold and wide openings: design for large spans and lintels, safely.
  • Rear or side extension: foundations, beams, roofs and lateral stability.
  • Loft conversion: floor strengthening, dormers and roof works.

Questions

Frequently Asked Questions

Do you need to visit my home?

No. Calcs-Online is remote only: with clear photos, basic measurements and existing or planned drawings, every project is completed online.

How do I send the right info?

Upload your drawings (PDF, PNG or JPG) or a few photos and any notes when requesting a quote. We'll confirm anything missing by email or a quick call.

Do you help with Building Control?

Yes. Our documents are approval-ready, and we respond to clarifications to keep your project moving. We don't submit applications on your behalf.

What if things change on site?

Tell us. We'll adjust the design and provide a revision so the work can carry on safely.

Are you insured?

Yes. We carry professional indemnity insurance of up to £500,000.

Price your project online

Upload the drawings or a few photos and see your price before you pay.

Get your price