Eurostair® spiral staircase standard

The standard spiral staircases consist of the following main components: center tube, railing, platform, and steps. You can choose your step surface, railing model, and surface treatment. All spiral staircases are individually customized which means we design them after your needs. Our spiral staircases are space-saving and suitable for all types of properties. With a well-thought-out design, modern steel materials, and a rational industrial volume production, we lead the way to an efficient and economical solution for you as a customer. We can deliver the stairs with protective cages and locks/emergency locks. Contact our sales department for more information about our spiral staircases and what else we can help you with.

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Technical Information
Product description
Project planning

STAIRCASE RADIUS

700-1200 mm (1300 mm)

Tread rise

160 - 200 mm

DISTRIBUTED LOAD

5 kN (3 kN)

Center tube

Ø 100 mm

Free height

min 2000 mm

Platforms

Free angle

Railings

5 different types for industry staircases

The EUROSTAIR® spiral staircase Standard has a full-length central pillar with threaded bolt holes for the steps. Entry and exit platforms are custom built to meet the customer’s specific needs. Handrails are constructed in steel tubes 42,4 mm. Options for industrial or child safe handrails. Staircase radius: 700, 800, 900, 1000 and 1200 mm is delivered as standard with 5kN distributed load. 1300 mm radius can be delivered for 3 kN distributed. Load is according to DIN EN ISO 14122.

The staircases are manufactured in clockwise and anti-clockwise versions. The steps in a Eurostair® spiral staircase has a profiled step side and the outside of the step is rounded. The connection part of the step consists of an attachment plate with a keyhole which provides enough space for a box key. The bolt is connected into the center tube and then the step attaches through the keyhole. This simple principle will help during assembly.

The step builds 100 mm which means with a step height of 200 mm the staircase is childproof. Eurostair® spiral staircases normally have step heights between 160 mm and 200 mm. Security caging is made of steel grating and supplied in heights of 2300 mm or full staircase height. Outdoor staircases are supplied galvanized in accordance with EN ISO 1461 but can also be delivered powder coated or duplex treated.

Handrail
The handrail is attached to the post using M6 bolts. The post is a UV profile sized 30x32x30 mm. Handrail diameter 42.4 mm.
Keyhole
A simple design feature that helps enormously during assembly. The area between the grating and the bolts provides enough space for a box key.
Steps
Step-side with contoured profile, and symmetrically designed grating for enhanced appearance. Grating dimensions 33x50 mm.
Platforms
Railing posts on the platform are bolted to the platform with M8 bolt + screw-nut. For child safe railing the posts are provided with brackets allowing a maximum horizontal opening of 100 mm.
Poles
<p>Poles are attached to the step's outer edge using M8 bolts. The holes in the steps are crowned and threaded. The poles are easy to attach from inside the staircase.</p>
Transition
In the transition from stair to platform, the handrails are joined for maximum stability. Bolt M6x20 mm with screw-nut.
Handrail sleeve
A unique, easy-assemble sleeve for simple, stable handrail jointing. No welding required.
Connection to ground/floor
The lower part of the handrail also provides ground support. The adjustable screw-in foot is fixed to the ground/floor after adjustment.

Our project planners are always here for your service with information and project planning of your spiral staircase. We can also help you with assembly. Please e-mail your sketches or drawings to us and we'll make sure you'll get a quick answer! In order to help you with your staircase solution we need to know following:

The placement of the staircase, inside or outside
Building classification
Direction of staircase, seen from the entrance in the bottom
Staircase radius
Staircase height from ground to upper edge
Shape of platform and exit
Railing model, child safe or industrial railing
Step and platform surface
Surface treatment, galvanized or powder coated
When powder coated, the RAL-color
Protective cage, standard or any height
Model of handrailing, steel, stainless or wood
Inner handrail
Center tube handrail
Floor thickness with dimensions of openings
Placing of railing on platforms and around floor openings, and bracing or consoles

Radius/steps per 360°	Size of steps from outside of the handrail	Recommended height between steps	C-C between posts
700 mm/14	202 mm	190-200 mm	300 mm
700 mm/16	182 mm	190-200 mm	270 mm
800 mm/15	238 mm	180-200 mm	330 mm
800 mm/16	216 mm	185-200 mm	300 mm
800 mm/18	194 mm	190-200 mm	270 mm
900 mm/15	272 mm	170-190 mm	360 mm
900 mm/16	250 mm	170-195 mm	330 mm
900 mm/18	227 mm	180-200 mm	300 mm
900 mm/20	204 mm	190-200 mm	270 mm
1000 mm/16	283 mm	170-180 mm	360 mm
1000 mm/18	260 mm	170-190 mm	330 mm
1000 mm/20	236 mm	180-200 mm	300 mm
1000 mm/22	212 mm	185-200 mm	270 mm
1100 mm/18	288 mm	170-190 mm	360 mm
1100 mm/20	264 mm	170-195 mm	330 mm
1100 mm/22	240 mm	180-200 mm	300 mm
1100 mm/24	216 mm	190-200 mm	270 mm
1200 mm/20	293 mm	170-200 mm	360 mm
1200 mm/22	269 mm	170-200 mm	330 mm
1200 mm/24	245 mm	170-200 mm	300 mm
1200 mm/27	220 mm	170-200 mm	270 mm
1300 mm/22	303 mm	170-200 mm	360 mm
1300 mm/24	278 mm	170-200 mm	330 mm
1300 mm/26	254 mm	170-200 mm	300 mm
1300 mm/29	228 mm	170-200 mm	270 mm

Options for standard spiral staircase

Most of the components in a spiral staircase exist in several different versions to fit your staircase solution. There are more options than the one we present here. Contact us for more alternatives.