Structural Calculations for UK Homes
Structural calculations keep a house safe when you change beams, remove walls or alter the layout. At SECalcs, we design the structural elements that hold your home together and provide clear, Building Control-ready packs for domestic projects.
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We specialize in:
- RSJ Design & Steel Beams
- Loft Conversions
- Extension Loads
- Wall Removals
- Building Control Packs
Residential Projects We Support
Most UK homes follow simple load paths. We calculate the forces and design safe replacements. All calculations follow Eurocode standards and typical UK construction data.
Extensions
Beam sizing for rear extensions, wrap-arounds, corner openings and wide spans.
Loft Conversions
Dormers, ridge beams, joists, rafters, struts and load transfers.
Wall Removal
RSJ designs for knock-throughs (single, double, flitch or universal beams).
Garage Conversions
Floor loads, lintels above doors and foundation checks for habitable rooms.
Internal Alterations
Beam upgrades for older homes or correcting previous DIY work.
Roof & Floor
Joist calculations, spread checks, rafter upgrades and supporting members.
Our Step-by-Step Process
Brief & Drawings
Send plans, photos and sizes. Simple sketches work for small jobs.
Load Assessment
We check how loads move through floors, roofs and walls.
Beam Calcs
Steel or timber beams sized for bending, shear and deflection.
Bearing Checks
Padstones and supports designed for real-world loads.
Roof/Floor Elements
Joist calcs and supporting members linked to new beams.
Building Control Pack
A clean PDF with notes and sketches inspectors can approve.
What You Get in Your Pack
- Full structural calculation sheets
- Beam checks (Moments, Shear, Deflection)
- Padstone and bearing sizes
- Timber and steel schedules
- Clear sketches & Builder instructions
- Support for Building Control queries
Why Choose SECalcs?
Who prepares your structural calculations
Your calculations are prepared by qualified structural engineers with experience in domestic UK projects, including extensions, loft conversions and wall removals. We work with Eurocode standards (EC2, EC3 and EC5) and follow current Building Regulations for England and Wales.
We have over 10 years of experience looking at load paths in typical UK homes, from Victorian terraces and 1930s semis to newer estates and timber-frame builds. Every project is checked by an engineer before the pack is sent out, and we stay available if Building Control needs clarification.
Client Testimonials
“SECalcs designed our 4.2m RSJ for a kitchen knock-through. The pack was clear and Building Control approved it straight away.”
- Homeowner in Manchester
“Our architect recommended SECalcs. The roof calculations were easy to follow and the turnaround was quick. Great service.”
- Loft Client, Birmingham
“We needed calculations for a side and rear extension. The engineer explained everything in simple terms.”
- Extension Project, Leeds
“Complicated loft conversion in a Victorian terrace. SECalcs handled the ridge beam and floor upgrades with no issues.”
- London Townhouse Owner
Typical Costs
We provide a fixed quote before starting.
Small Openings
Simple openings, wall removals.
£250 - £350
Loft Beams
Ridge beams, joists, rafters.
£350 - £600
Extensions
Multi-beam layouts, full shells.
£600 - £1,200
Common Questions
Ready to Start?
Use the form to tell us about your project. We'll come back with a fixed-fee quote and a realistic turnaround time.
Information We Need
- Floor plan or Sketches
- Photos of the area
- Opening widths / Spans
Areas We Cover:
Manchester, London, Birmingham, Leeds, Liverpool, Bristol, Sheffield, Leicester, Nottingham, Newcastle, Southampton, Coventry, Derby, Bradford, Bolton, Wolverhampton and surrounding UK areas.
- Head Office: Corwell Lane, Uxbridge, England, UB8 3DE.
- 07359 267907
- info@structuralengineercalcs.com
- Company No: 12653163