In the workshop

What we do

Analysis begins with the site: basic wind speed, terrain category, altitude and topography factors, and the exposure of the specific position rather than the town it sits in. For conventional forms we derive pressure coefficients from EN 1991-1-4 or ASCE 7 as the jurisdiction requires; for helical, perforated and highly three-dimensional forms we use published wind tunnel data or, on the largest commissions, commission testing. Models are built in Robot Structural Analysis and hand-checked at the critical section, because a single-source digital result on a bespoke geometry is not something we are willing to sign. Internal frames are designed in S355 or 316L depending on the shell material, with connections detailed to be welded in the workshop rather than site-bolted wherever the transport envelope allows. Base fixing design covers the holding-down bolt layout, plate thickness, grout specification and the loading plan — vertical load, overturning moment, shear and, where relevant, the accidental vehicle impact case. We issue the loading plan to the project engineer rather than designing the foundation ourselves, because bearing capacity is a site question. Serviceability is checked as well as strength: tip deflection under the serviceability wind case is agreed with the facade or landscape consultant, typically at L/120 for cantilevered work. Calculations are issued signed, with the assumptions listed on the front sheet so they can be challenged.

Stage by stage

How it runs

Typical durations for this stage. They are what we programme against, not best cases.

  1. Site parameters

    Wind speed, terrain, topography, exposure and any jurisdiction-specific requirements confirmed in writing.

    Typical duration: 3 days

  2. Analysis and framing

    Model built, hand-checked at critical sections, internal frame and connections designed.

    Typical duration: 2 weeks

  3. Anchoring and loading plan

    Base plate, bolt layout and loading plan issued to the project engineer for foundation design.

    Typical duration: 1 week

  4. Issue and independent check

    Signed calculations issued; local engineer of record coordination where required.

    Typical duration: 1–3 weeks

Plant and codes

Equipment and standards

Named machinery, the codes we work to, and the certifications behind them.

The plant list and workshop headcounts are not published yet. Ask us and we will send the current equipment register.

Ask for the register

In the meantime

At handover

What you receive

Drawings, calculations, files and certificates issued as part of the commission — not on request.

Signed calculation pack, general arrangement and anchoring drawings, base loading plan, welding procedure specifications, and a lifting plan with designated rigging points.

Need structural engineering on a live project?

Send the drawing, the model or the photograph you have. We will tell you what is achievable at that scale, what it will take, and what it will cost.

We respond to every quote request within one working day