What is the difference between a Category A and a Category B Stair?

A Category A small private spiral stair is intended for use by a limited number of people who are generally familiar with staircase. For example, an internal stair in a dwelling serving one room not being a living room or a kitchen, an external access stair to an office not used by the public, or spiral fire escape stairs for a small number of people.

A Category B private stair in addition to a Category A stair can also provide the main access to the upper floor of a private dwelling.

You can find out more about how our staircase kits are Building Regs compliant on our Building Regulations page.

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...

Why do I need to select clockwise or anti clockwise?

This determines which way you walk up the stair and where you step on and step off it.

It may be helpful to review our Technical Layout Diagram to determine where the exit will be.

Why do I need to specify whether the base plate is above or below ground?

If the ground is stable and you want to see the base plate to the stair choose above finished floor level/ground level. If the ground is not load bearing you will need to cast a footing in concrete. This would normally be below the ground or finished floor level and infilled to hide the fixings. If cast below ground level an additional column spacer is required.

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.

Q Stairs technical information guide
Q Stairs installation guide
Q Stairs technical information guide
Q Stairs installation guide
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Steel Square Anti-Clockwise Above Above

Galvanised Steel Spiral Staircase Kit External


Please ensure this is accurate, we will produce the stair to this height.

£1,699 +VAT

Delivery will be calculated at checkout

Our external spiral staircase kit makes a great garden feature or practical escape or access staircase option.  Designed specifically for outdoor use it is robust and durable.

Description
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Our external spiral staircase kit makes a great garden feature or practical escape or access staircase option.  Designed specifically for outdoor use it is robust and durable.

Our galvanized exterior spiral staircase kit is designed for use outside. With its robust and durable spiral design, this staircase not only saves space but also serves as a stunning garden feature. It can be installed for access to gardens or courtyards, as well as for accommodation or fire escapes. Available in two tread sizes to meet building regulation requirements, this external staircase kit is specifically designed for easy self-installation and requires no specialised tools, making the process of adding a spiral staircase simpler than ever.

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Our Qstairs outside spiral staircase kits are manufactured in our state-of-the-art factory by experienced time-served fabricators and welders to ISO quality standards.
 

These staircase kits have a galvanized finish 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.

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Fully compliant

We’ve made sure that all of our stairs comply to Building Regulations so you don’t have to…

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Get Inspired

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Stair terminology

We’ve put together an A-Z guide
of stair parts and their construction

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