Structural
Calculations
Calculation packages suitable for Building Control approval.
What We Do
We prepare full structural calculation packages to support Building Control applications. Our calculations cover steel beams, lintels, floor structures, load-bearing walls, and all other structural elements required for your project.
All calculations are produced to current British Standards and Eurocodes, clearly presented, and ready for submission.
Scope of Service
Steel Beam Calculations
Design of universal beams, RSJs, and steel lintels with full load analysis, bending, shear, and deflection checks.
Floor Structure Design
Sizing of timber and steel floor joists, engineered joists, and floor plates for new and existing buildings.
Load-Bearing Elements
Assessment and design of load-bearing walls, padstones, and bearing details for new structural openings.
Building Control Package
Complete calculation sets formatted for Building Control submission, with clear cross-referencing to structural drawings.
How It Works
Initial Consultation
We discuss your project requirements, review architectural drawings, and establish the scope of structural work needed.
Site Assessment
Where required, we visit the site to assess existing conditions, take measurements, and identify any constraints that may affect the design.
Design & Calculations
We produce full structural calculations and drawings, ready for Building Control submission and contractor use.
Construction Support
We remain available throughout the build to answer site queries, review conditions, and provide amended details where needed.
Frequently Asked
Structural calculations are written engineering checks that prove every load-bearing element in your project is strong enough and stiff enough for the loads it will carry. They cover steel beams, timber joists, lintels, padstones, foundations and any other element that is part of the load path. Building Control require them before issuing approval for most building works, and contractors use them to order the right materials and build to the correct specification.
Yes — almost all loft conversions require structural calculations. The new loft floor needs to be strengthened to take residential floor loads, the existing roof structure usually needs altering to form the dormer or rooflight openings, and new steel beams are typically required at floor and ridge level. Building Control will not sign off the works without calculations from a qualified structural engineer.
For a typical residential project — an extension, loft conversion or internal alteration — we usually turn calculations and drawings around within one to two weeks of the initial site visit or receipt of architect's drawings. More complex projects can take longer. If you have an urgent deadline, let us know up front and we will do our best to accommodate it.
Yes. All our calculations are produced to current British Standards and Eurocodes, clearly presented, and formatted for direct submission to either local authority Building Control or an Approved Inspector. We have worked with Building Control teams across Hertfordshire, London and the South East and our calculation packages are routinely accepted without query.