OD3BIM Group

Dunshaughlin, Co. Meath · Residential

The Willows, Dunshaughlin

Two concrete stair cores laser-scanned and traced to ≈2mm, then detailed with bespoke balustrades — survey, detailing and the engineering calculations in one thread.

Tekla model of the balustrade system at a half-landing of The Willows stair core

The Willows is what replacing the tape measure looks like. Two existing concrete stair cores were captured with 3D laser scanning, registered into a single point cloud, and traced into Tekla at roughly 2mm tolerance — so the bespoke balustrade systems were detailed against what was actually built, not what the drawings hoped for.

One elevation couldn't be side-fixed to the concrete because of a clash with the glazing system, so fixing methods were reworked in the model to keep the architectural intent intact while staying installable.

The role grew as the project ran: what began as survey and detailing expanded to include the engineering calculations for the balustrade systems — capture, detail and check, delivered as one coordinated workflow across ≈3 tonnes of architectural steel.

Outcome

Both stair cores fitted out with minimal site modification — and OD3's role grew mid-project to include the balustrade engineering calculations.

Model view looking up a stair flight with balustrade panels and timber handrail line
Balustrade and handrail line traced against the scanned concrete
Model close-up of a balustrade base-plate fixing into the concrete stair stringer
Fixing detail — reworked to clear the glazing system

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