How long do structural calculations take?

The honest answer

For a straightforward domestic package, one to two weeks from receiving usable drawings is a realistic target. That covers sizing the elements, checking the bearings and load path, producing the drawing and issuing the calculations. Anything quoted at a few hours is either a very simple single element or a template with your dimensions typed into it.

What actually slows it down

Almost never the calculation itself. The delay is usually waiting for information: a dimension nobody measured, an unclear drawing, a question about what is above the wall, or access to the property. The fastest projects are the ones where the brief arrives complete.

Why a site visit changes the timescale

Visiting adds a day or two to the programme and removes a category of risk. Drawings of older buildings are frequently wrong about what is carrying load, because alterations get made and rarely get recorded. Designing from an inaccurate drawing produces calculations that are correct in themselves and wrong for the building.

If you are already on site

Tell us. A project that has stopped is a different problem from one being planned, and we will say honestly whether we can help within your timescale rather than accepting the work and hoping. If we cannot, you have lost a phone call rather than a week.

What to send to get a fast answer

Whatever you have. An architect's drawing is ideal. A sketch with dimensions works. Photographs of the wall, the rooms either side, and the floor above are genuinely useful. If you have none of that, describe the job and we will tell you what is needed.