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Made-to-measure staircases
Multi-flight staircases
Above a storey and a half a straight flight runs out of room, and the stair has to turn. Half landings, quarter landings and dog-legs are how we get two and three storeys up in a sensible footprint.
Landings do the work
A landing is a rest, a turn and a structural node all at once. We use half landings to fold a stair back on itself against a wall, quarter landings to turn a corner, and, as our own practice rather than a rule for houses, intermediate landings on long runs so nobody climbs more than 16 risers without a break. Each landing is a galvanised platform on its own posts or brackets.
Structures that stand up
Multi-flight stairs are usually freestanding towers tied back to the building at each landing. We design the posts, footings and ties, supply calculations whenever the inspector requires them, and fabricate the whole tower as bolted sections that are assembled on site.
Where they go
Blocks of flats, offices, schools and workshops needing a second escape route; houses with a second floor over a garage; commercial units with a mezzanine. Most multi-flight stairs we make are fire escapes, so each design is checked against Approved Document B for fire safety and Approved Document K for protection from falling.
Questions we are asked about Multi-flight staircases
How long does a multi-flight staircase take to fit?
Usually one to two days on site once the footings are in. Fabrication and galvanising beforehand take a few weeks.
Can a multi-flight stair be enclosed or roofed?
Yes. Mesh or solid side panels and a canopy over the top landing are common on escape stairs and can be added to the design.
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