What Information is needed for structural calculations?

The information that we require to prepare accurate structural calculations is listed below. If you are carrying out work without an architect, we can attend site to survey the area of the works and provide advice.

  • What will the beam carry?
  • How long is the opening?
  • How thick is the wall?
  • Does the wall contain a cavity or is it a single leaf of masonry?
  • Is the wall constructed in timber panels?
  • Will the beam or lintel carry a wall or floor?
  • Is there at least 660mm before the next opening – if not what is the length of brickwork?
  • Will the lintel support top supported, or top restrained doors?
  • How long is any floor that is to be carried?

What if I change my mind?

There are often reasons why it becomes necessary to make changes to the original proposals.

For example, circumstances may change; the work may be delayed, and timescales altered; the cost provided by your supplier may be more expensive than originally allowed in the budget.

If a change is necessary it should be made in writing, or on a drawing, at the earliest opportunity.

If the affected design is already complete this will still be charged. However, if the design of the affected item has not been started then there may be no effect on the cost.

If any aspect of the project is undecided that affects the structural design, and you let us know we can leave that part of the design until you instruct us to proceed.

If you decide to include additional items into your project once the builder has started work, we will treat this as an extension of the brief and carry out the work at the rates provided within your written quote.

We will agree the costs with you before proceeding and will also aim to expedite the delivery of information required.

Need to discuss your plans?


We can provide civil or structural engineering advice by telephone or email without a commitment to proceed.


Why choose us?

  • Over 40 years experience
  • All work is undertaken or supervised by a chartered engineer
  • Our designs are prepared in accordance with:
    The Building Regulations of England & Wales
    British Standards
    NHBC Standards

Cordyline Aspire Limited


Consulting Civil and Structural Engineers


01926 732407

Stay Connected