ASTA modular staircases are a practical and versatile solution for homes, garages, loft conversions and utility spaces. Designed with both functionality and aesthetics in mind, they offer a modern, minimalist appearance while remaining highly adaptable to a wide range of interior and exterior applications.
Whether you prefer an industrial loft-inspired look or a clean Scandinavian style, ASTA stair systems can be tailored to complement your space. With multiple configurations, finishes and design options available, you can create a staircase that suits your project without the need for costly bespoke designs.
ASTA staircases are engineered for straightforward self-installation. Their modular construction allows for quick and simple assembly, making them an ideal choice for customers looking for a high-quality staircase solution without the expense of specialist installation services.
OVERVIEW
What Are ASTA Modular Staircases?
CONFIGURE YOUR ASTA STAIRCASE
• Staircase Dimensions and Layout Options
• Landing and Structural Support Options
• Handrail Designs and Safety Options
• Tread Materials, Finishes and Colour Options
Installation and Video Tutorials
How to Measure for Your Staircase
Click on the categories above to explore configurations, materials and design options available for your modular staircases.
Configure Your ASTA Modular Staircases
Staircase Height and Layout Options
ASTA modular staircases can be configured to suit a wide range of floor heights and layouts, making them suitable for both internal staircases and external access solutions.
Configurations are available from just a few steps up to a maximum overall length of 4,620 mm. By incorporating intermediate landings, the total staircase height can be extended to approximately 6 metres.
Available dimensions:
- Height: from 340 mm to 3,800 mm
- Length: from 530 mm to 4,620 mm
- From 2 to 19 steps per staircase
Unlike many modular stair systems available on the market, ASTA staircases feature adjustable risers, allowing individual step heights to be smoothly set between 170 mm and 200 mm for improved comfort and flexibility.
Special flexible washers compensate for natural building movement and help prevent the structure from loosening over time, ensuring long-term stability and durability.
Available staircase layouts
ASTA modular staircases are available in several configurations to suit the available space, floor height and safety requirements of your project.
- Straight single-flight staircases – the simplest and most compact solution, ideal for smaller spaces;
- Two-flight staircases with an intermediate landing – a practical option where the available run length is limited;
- Three-flight staircases – designed for higher floor levels and larger spaces.
The staircase orientation can be changed at any stage of the design process, allowing you to create a layout tailored to your building.
- Straight staircases
- Right-turn staircases
- Left-turn staircases
Landing and Structural Support Options
ASTA staircases can be mounted directly to a floor slab or a wall, providing flexibility for a wide range of building layouts and structural conditions.
Intermediate landings can be supported either by wall-mounted brackets or by vertical posts fixed directly to the ground.
Whether you choose a wall-mounted staircase or a free-standing structure, every ASTA system is designed to provide a stable, safe and durable solution that complies with the technical requirements of modern buildings.
Handrail Designs & Safety Options
A staircase balustrade is not only an essential safety feature but also an important design element that enhances the overall appearance of the space. Whether you prefer a minimalist look or a more decorative style, ASTA offers a range of handrail options to complement your interior while meeting additional safety requirements for children and pets.
Choose from classic handrails, horizontal tubes or steel cables, as well as designs with additional infill for increased child safety. All handrails are securely fixed to the staircase structure, ensuring excellent stability and long-term durability.
Available handrail designs:
- Minimalist Open Handrail – a simple design without infill, ideal for modern open-plan interiors. It emphasises the lightness of the staircase and maintains an uncluttered appearance.
- Classic Handrail with Horizontal Infill – a traditional solution featuring horizontal bars, suitable for homes and commercial spaces where aesthetics and protection are equally important.
- 4 mm Steel Cable Handrail – a contemporary design using 4 mm stainless steel cables. Visually lightweight yet strong and durable, making it particularly suitable for industrial-inspired interiors.
- 12 mm Tube Handrail – slim 12 mm steel tubes create an elegant and secure arrangement that pairs well with both steel and timber staircases.
- Child-Safe Handrail – specifically designed for households with children and pets. The denser infill reduces the risk of slipping through and provides enhanced protection.
Tread Materials, Finishes and Colour Options
The choice of tread material and finish gives your staircase its final character and determines both its appearance and functionality.
For both indoor and outdoor applications, you can choose industrial-style steel treads, including welded grating and profiled steel panels.
For interior spaces, laminated beech timber treads provide a warm and refined appearance. For garden access and outdoor installations, anti-slip larch timber treads offer a durable and weather-resistant solution.
We also offer a steel base structure, providing an excellent foundation for customers who wish to complete the treads using their own preferred decking or finishing material.
Available finish options:
- Hot-dip galvanising – long-lasting corrosion protection suitable for outdoor use;
- Powder coating – available in nine standard colours;
- Custom RAL colours – any RAL finish available on request.
Recent ASTA Modular Staircases Installations
What Information Do We Need to Quote Your Staircase?
To recommend the most suitable ASTA staircase configuration and provide an accurate quotation, we only require a few basic measurements and details about your project.
If you do not have architectural drawings, a photograph and a few simple measurements taken according to the guide below will be sufficient.
Installation Guide (PDF) Modular Staircases
Download our detailed installation manual and follow step-by-step instructions for assembling your ASTA staircase. The guide includes component identification, recommended tools, adjustment details and practical assembly tips to help you complete the installation safely and efficiently.
FAQ Modular Staircases
HOW TO PLACE AN ORDER FOR ASTA MODULAR STAIRS?
You can order the staircase in two ways:
From our partner – get the contact from the map available on our website.
Order direct from us by sending an e-mail or giving a call for further details
WHAT IS THE MAXIMUM HEIGHT ASTA STAIRS CAN ACHIEVE?
If you want to install just a singular flight you can utilize 20 steps and reach 4 meters. If you use any middle landing or a winder the maximum height is not limited.
DO I NEED A QUALIFIED ASSEMBLY TEAM FOR ASTA STAIRS INSTALLATION?
No. The stairs have been designed in the way which gives our client a possibility of assembling them on their own within a few hours. To each set there is a simple assembly manual included which clearly explains how to put all modules together step by step. You can also download the instruction from our website.
WHERE CAN I USE THE ASTA STAIRCASE?
ASTA stairs can be installed in any place, using appropriate tread filling, balustrade, and corrosion protection. The stairs meet BS standards for residential and industrial purposes. Modular system can be successfully installed inside and outside the building.
WILL ASTA STAIRS FIT MY NON-STANDARD SPACE?
The multivariate system allows to fit the flight in more than one configuration into the desired space. However, the technical issues such as tread depth or flight width are a subject to verification with your space possibilities. We encourage you to download the price list where you can find all the system measurements and if not sure, please contact us – we will help you choose the best option.
HOW CAN I INSTALL A BALUSTRADE ON MY TERRACE?
ASTA modular railings are available in 2 different section lengths: 1.2m and 2.4m. Sections can be joined, while the final section should be cut to the desired length.
The railing can be installed in two ways:
• into the terrace floor
• to the front of the terrace
CAN THE KITE WINDER STAIRS BE SELF-SUPPORTING?
Right or left turned stairs do not meet the requirements of a self-supporting structure. The winder is supported on one column from the inside, while the outside winder’s beams require anchoring. Ask our team which side of the winder can be anchored optionally.
IS IT POSSIBLE TO GET A DIFFERENT FLIGHT WIDTH?
ASTA modular stairs are available in one basic flight width – 900 mm. Optionally can be ordered in a new 700mm width, but only as a straight flight or with the winder.
IS THE USABLE WIDTH OF 900MM COMFORTABLE ENOUGH?
Based on many years of experience in designing stairs, we have adopted the optimal width of the flight, so that it is not only comfortable, allowing you easily pass with another person, but also to fit ASTA into the limited spaces.
HOW CAN I CONNECT PARTICULAR PLATFORMS?
Platforms can be joined together directly one to each other. In case when you need a joint middle landing and make 180* turn with the connection adapter will be needed to give a space for balustrades. All the top landings can be joined in one row only.
WHICH CORROSION PROTECTION WILL BE BETTER FOR MY STAIRS?
ASTA modular stairs, as a structure dedicated to outdoor as well as indoor use is protected in two different ways:
HDG – hot deep galvanisation is a zinc corrosion protection which gives the highest quality of galvanisation. Protect the structure from rust for many years even when used outside.
Galvanising and Powder Painting – this double coat protection works perfectly not only in every environmental conditions but also gives the structure more pleasant look.
WHAT IS THE SHIPPING PRICE?
The shipment is free for the central UK. There might be some additional shipping costs for Scotland, Wales, Cornwall, Northern Irland. UK islands are subject to separate shipment quote.
IS IT POSSIBLE TO ORDER THE STAIRS ALONG WITH ASSEMBLY?
ASTA modular stairs are intended for self-assembly. You can use the services of local construction companies or call an installation team that may have already done some renovation, construction or other work for you.
Nevertheless, the simple and intuitive assembly manual encourages to do the installation on your own. The manufacturer does not provide any assembly services.
HOW CAN I PAY FOR THE STAIRS?
If the purchase was made directly from the manufacturer, there are two methods of payment:
– traditional transfer based on a previously sent pro-forma invoice.
– credit card payment – a fast payment can be made using personalised payment gate provided by the salesperson.
– Possibility to pay for your order using your PayPal account
CAN I ORDER STEEL STRUCTURE IN A DIFFERENT COLOR?
Yes, ASTA modular stairs can be painted in a pallet of RAL colours specified by producer. Please note that painting stairs in non- standard colour can be associated with a significant increase in the price of the stairs. Please contact our sales team to find out more.