Regular work on Victorian terraces, stone-built houses and newer estates across the city.
RSJ Design • Leeds
RSJ Design Structural Engineer in Leeds
Fixed fee RSJ design Leeds with steel beam calculations for wall removals, loft conversions and extensions across the city. Structural calculations are issued as a clear pack so your builder and Building Control know exactly what to do.
- Chartered structural engineers providing RSJ design in Leeds week in, week out.
- Full steel beam calculations and wider structural calculations ready for Building Control checks.
- Practical beam sizes that suit site work and help keep steel weight and cost under control.
Working across Leeds and West Yorkshire including Headingley, Roundhay, Chapel Allerton, Horsforth, Pudsey, Garforth and surrounding areas.
For most domestic RSJ design and steel beam calculations once information is in.
Senior chartered engineers review the structural calculations before issue.
RSJ design Leeds, steel beam and structural calculation services
RSJ design, steel beam calculations and wider structural calculations for the jobs Leeds homeowners carry out most often.
Open plan RSJ beams
Steel beams for removing internal walls between kitchen, dining and living rooms in houses and flats across Leeds.
- Single RSJ over a new opening
- Beams joining two rooms into one larger space
- Goalpost frames where spans are wide or loads are heavy
Steelwork for rear and side extensions
RSJs and supporting steel for single and two storey extensions, large openings and corner glazing.
- Beams over bi-fold, sliding or French doors
- Steel supporting new brickwork and timber roofs
- Padstone and bearing checks included in the pack
Loft RSJs and cranked beams
Structural calculations for loft conversions and dormers in terraces and semis around Leeds, including ridge, floor and support beams.
- Cranked beams where headroom is tight under the roof
- Beams carrying new joists, dormers and stud walls
- Checks on existing walls and foundations that take the load
Chimney breast removal steelwork
Steel beams and brackets when chimney breasts are removed on one or more floors and the stack remains above.
- Beams or brackets taking the weight of the remaining chimney
- Load paths checked through floors and walls
- Simple notes to help the builder sequence the work safely
Steel posts and simple frames
When loads cannot sit on existing walls we design SHS posts, padstones and small frames that suit the layout.
- Posts under RSJs, lintels and corner openings
- Concrete padstone design for new support points
- Simple connection notes suitable for local fabricators
Independent structural calculations
Structural calculations for existing beams or changed layouts where paperwork is missing or lenders ask for confirmation.
- Checks on steel that was fitted in past work
- Reports for buyers, solicitors or mortgage providers
- Help responding to Building Control queries on older work
Simple four step RSJ design process
From first enquiry to finished RSJ design and structural calculations for your Leeds project.
Send photos, rough sizes and any drawings you have. A short call can help confirm the layout.
You receive a clear fixed price and scope before we start any RSJ design or steel beam calculations.
An engineer designs the beam, checks loads and deflection and prepares the structural calculations pack.
You receive drawings and RSJ design notes ready for your builder and Building Control officer.
What Leeds clients say
Feedback from homeowners and builders using our RSJ design and structural calculations in Leeds.
We removed the wall between the kitchen and sitting room in a stone terrace near Headingley. The RSJ design and calculations were clear and Building Control passed everything without any problems.
Rear extension in Roundhay with a wide opening for bi-fold doors. The steel beam calculations fitted the architect plans and our builder said the pack was easy to follow on site.
Loft conversion on a semi in Horsforth. The RSJs and cranked beams were set out in advance so there were no surprises when the roof came off.
Frequently asked questions
Common questions about RSJ design, steel beam calculations and structural calculations for Leeds projects.
How quickly can you provide RSJ design in Leeds?
Most wall removal work and small RSJ design jobs are turned around within 24 to 72 hours once we have drawings, photos and key sizes. Full structural calculations for larger extensions or loft packages usually take five to seven working days.
Will the structural calculations be accepted by Building Control?
Yes. The steel beam calculations and wider structural calculations follow current Eurocodes and are set out in a format Building Control officers across Leeds are used to seeing. If your inspector has any questions we answer them directly.
What do you need from me to start the design?
We need the project address, a short summary of what you plan to do, good photos and basic sizes of the wall or opening. Architect plans, estate agent floor plans or your own sketches all help us plan the RSJ design correctly.
Can you work from photos only or do you need a visit on site?
Many domestic RSJ design and steel beam calculation jobs in Leeds can be handled from photos, sketches and clear measurements. If the structure is complex or access is awkward, we may suggest a site visit or measured survey before we finalise the structural calculations.
Send a few photos and a brief description and we will reply with a fixed fee, likely beam options and expected turnaround time.
Request a RSJ design quote in Leeds
Use this form to outline your project. Your enquiry goes straight to an engineer.
Tell us about your structural work
Share a few details so we can confirm the right RSJ design, steel beam calculations and structural calculations for your project.
This form connects to our central SECalcs email. A structural engineer normally replies within one working day.

- Head Office: Corwell Lane, Uxbridge, England, UB8 3DE.
- 07359 267907
- info@structuralengineercalcs.com
- Company No: 12653163
