Floor to Floor measurement: is there any guidance on how you get this measurement?
Use a tape measure or laser measure to measure the vertical distance between finished floor levels.
This is the distance from the finished floor (e.g. paved patio) to finished floor (decking/landing). You will need this measurement before you place your order so we can send you the right spiral staircase kit for your space.
Don't forget to specify the right base plate...
Do you provide fixings for securing the top of the stair?
When you make a spiral staircase, you will require fixings in order to secure the top of the stair. We do not supply these as they will vary depending on what you are fixing the stairs to.
How much do your staircase kits weigh?
This will depend on the size of stair you order but most of our staircase kits weigh between 300 and 400kg. With the maximum weight being 400kg.
Please consult your own structural engineer to ensure your foundation is adequate.
What material are your staircase kits made from?
Our kits are fabricated in steel with a nonslip pattern to the treads.
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Our internal spiral staircase kits are fantastic options as a reliable, space saving structure. They can be customised to a style of your choice with our option of powder coats to match your interiors.
Description
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Our galvanized exterior spiral staircase kit is designed for use outside. Robust and durable the spiral design saves on space and makes a striking garden feature. It can be installed for access to gardens or courtyards, for accommodation access or as a fire escape stair.
This external staircase comes in two tread sizes depending on the building regulation compliance required. The kit has been designed especially for self installation and doesn’t require any specialist tools, making a spiral staircase has never been easier.
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Our outside spiral staircase kits are manufactured in our state-of-the-art factory by experienced time-served fabricators and welders to ISO quality standards.
The galvanized finish is to protect the steel from corrosion and helps to keep the external staircase maintenance free.
Technical information
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Material: 3mm steel, galvanized
Hot dipped galvanized:
Our DIY spiral staircase kits for external use are hot dip galvanized which means they are long lasting and can stay maintenance free for decades.
Hot dip galvanising is when clean steel is immersed into molten zinc, a series of zinc-iron alloy layers are formed by a metallurgical reaction between the iron and zinc, providing a robust coating which is an integral part of the steel.
All our galvanised spiral stair kits are hot dipped in accordance with BS EN ISO 9001:2015 and under the control of ISO 9001.
Treads: Are mild steel and come in two sizes 750mm radius and 950mm radius with standard 120mm front and back fold down in a non-slip tread plate pattern.
Balustrade: 22mm diameter balusters that are slotted to accommodate the aluminium coil handrail.
Handrail: 40mm x 6mm aluminium coil with PVC slotted handrail to go on top.
Rectangular landing:
With 750 tread radius: 814mm x 944mm
With 950 tread radius: 1014mm x 1144mm
Technical specification document
Our detailed technical specification document with landing details can be downloaded here: steel spiral staircase technical specification.
Technical layout drawings
We also have technical layout drawings that show where you will step on and step off our spiral staircase depending on the height, landing and staircase direction you choose.
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FAQs
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Installation
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Our step by step instruction manual on how to build a spiral staircase can be found here.
It gives details on what tools you will need, what you need to consider before going ahead with the install and guidance on how to install the kit stairs, so it remains building regulations complaint.
You may also find our technical layout diagrams helpful for working out where you will step on and step off the spiral stair.
