A scaffold stair tower using Alto Universal Stairs constructed on a building site.

Strength & Flexibility

ALTO Universal Stair

The Alto Universal Stair is a versatile all-aluminium access solution for the tube and fitting scaffolder, allowing a totally compliant staircase to be installed across a range of lift heights to suit any situation.

Supplied pre-assembled, the Alto Universal Stair requires only to be unfolded, attached to the desired scaffold tube and locked with a scaffolders spanner.

Like all Alto products the Alto Universal Stair is designed to be effective and durable and is fully compliant with BS EN 12811 in all permissible configurations.

New home under construction with Alto Universal Stairs used for access.

- Sizes -

An image of a 0.5m ALTO Universal Stair Unit with the scaffold tube hook option.

2 Tread Stair

430mm to 560mm

The 0.5m ALTO Universal Stair Unit - also known as a 2 Tread Universal Stair - has a lift height range of between 430mm and 560mm approx.

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An image of a 1.0m ALTO Universal Stair Unit with the scaffold tube hook option.

4 Tread Stair

730mm to 1000mm

The 1.0m ALTO Universal Stair Unit - also known as a 4 Tread Universal Stair - has a lift height range of between 730mm and 1000mm approx.

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An image of a 1.5m ALTO Universal Stair Unit with the scaffold tube hook option.

6 Tread Stair

1030mm to 1500mm

The 1.5m ALTO Universal Stair Unit - also known as a 6 Tread Universal Stair - has a lift height range of between 1030mm and 1500mm approx.

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An image of a 2.0m ALTO Universal Stair Unit with the scaffold tube hook option.

9 Tread Stair

1480mm to 2100mm

The 2.0m ALTO Universal Stair Unit - also known as a 9 Tread Universal Stair - has a lift height range of between 1480mm and 2100mm approx.

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An image of a 2.5m ALTO Universal Stair Unit with the scaffold tube hook option.

12 Tread Stair

1930mm to 2760mm

The 2.5m ALTO Universal Stair Unit - also known as a 12 Tread Universal Stair - has a lift height range of between 1930mm and 2760mm approx.

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An image of a 3.0m ALTO Universal Stair Unit with the scaffold tube hook option.

15 Tread Stair

2370mm to 3400mm

The 3.0m ALTO Universal Stair Unit - also known as a 15 Tread Universal Stair - has a lift height range of between 2370mm and 3400mm approx.

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- Features -

A close-up image of the Alto Universal Stair height adjustment bracket.

Variable Height.

Designed to give scaffolders a cost-effective stair access solution with practical, reliable and compliant equipment. The Alto Universal Stair copes admirably with varying lift heights and floor levels, giving level treads across the permitted range of stair angles.

A close-up image of the Alto Universal Stair tread

Rapid Installation.

Made to fit 48mm tube and fitting scaffolding. With this product you can quickly install a fully compliant stair access to your scaffold. The Alto Universal Stair can be installed using only a scaffolders spanner to operate the locking mechanisms.

Two Alto Universal Stairs used to create a staircase on a building site.

Complete Range.

The Alto Universal Scaffold Stair is available in 6 standard heights from stock. Non-standard widths & heights are also available as special order items.

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There are six models in the range covering lift heights from 0.5m to 3.36m making the Alto Universal Stair hugely versatile.

Alto Universal Stair Units accept both our own proprietary handrails and standard tube and fitting parts to allow creation of handrails to suit the site. Alto Universal Handrails are available for all models. They fold flat for transport, simply unfold, drop into the sockets and tighten the securing pins with a scaffolders spanner.


- Videos -

A screenshot from the Alto Universal Stair video

Universal Stair Install

A screenshot from the Alto Universal Stair video

Universal Stair Height Adjustment

A screenshot from the Alto Universal Stair video

Universal Stair Handrail Install

- Gallery -