Feature Staircase at Mortimer St, Mayfair, London (Mortimer St Part Two)

Last summer we shared the start of a project at Mortimer St, in Mayfair in London. That job – part of a building refurbishment – was a vertical extension. Here is the second part of the project: an unusual featured staircase!

GPF Lewis awarded the LSJ Engineering team the contract to complete the design, then build, a feature staircase at their Mortimer St refurbishment.

Barr Gazetas provided the original staircase design. It showed slim stringers, cut to follow the shape of the treads. The plan included a half landing, supported by hanging it from the floor slab above on four 20mm diameter rods, with a balustrade fixed to the stringers. It runs up through the void in the floor to form the balustrade around to void at that level.

Note: you can click on the images to enlarge them.

Not a standard design! We carried out a lot of structural design checks to make sure the stair didn’t sway when used. Draft SD carried out the drawings and modelling work.

We’re delighted that we achieved a close match to our design brief. The stringers were laser cut from 25mm solid plate to ensure clean lines, and we built the balustrades in the workshop for maximum accuracy before dismantling them for their powder coated finishes, as well as the delivery to the fourth floor of the building.

What do you think of the finished product? We’re very pleased with the featured staircase, and we’re chuffed to have finished our work at Mortimer St on a high. It was especially satisfying to include two slightly different elements of our trade on one project.

Do you require a feature staircase for your commercial building?

We are open for commercial steel projects, including staircases. Contact the team here, or email us via info@lsjeng.co.uk. Alternatively, phone 01702 290 585. Browse write ups of our other staircase projects here. We look forward to hearing from you.

Published by LSJ Engineering

LSJ Engineering provides premium structural steel, architectural steel and staircases for businesses in Essex, London and the South East, from our base in Shoeburyness.

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