Indoor Modular Stairs

Modern modular stairs for interiors – functional, durable, and tailored to your space.

The ideal solution for homes, duplex apartments, and loft-style interiors.

Transforming spaces into functional and elegant interiors

Indoor modular stairs combine modern design, solid construction, and complete configuration flexibility. The system allows the staircase to be precisely tailored to the room layout, floor-to-floor height, and the individual requirements of the user.

Thanks to their modular design, these stair systems are ideal for single-family homes, duplex apartments, and modern loft-style interiors. We offer solutions that combine aesthetic appeal with everyday comfort.

Individually tailored to your interior

Wide selection of treads and railings

Adjustable step height

Support from configuration to installation

A durable solution built to last

The load-bearing structure is made of 5 mm steel components (top and bottom steps) and 4 mm steel components (intermediate steps), all fully galvanized and powder-coated. The galvanized finish protects the stairs against moisture, while the powder coating enhances their appearance and allows them to blend seamlessly into any interior.

What makes our metal stair systems unique is the ability to fully customize them and continuously adjust the step height from 170 mm to 200 mm. This feature is especially valuable when floor-to-floor dimensions change by several or even a dozen centimeters during construction. Depending on the selected configuration, the stairs can accommodate heights ranging from 34 cm to 380 cm.

Simple configuration, endless possibilities

There are many ways to configure your stairs, including railings, guardrails, winders, and landings. Below you will find the available stair and railing options.

Profiled Grating

Welded Grating

Indoor Laminated Beech Tread

Base Plate for Tread 898 × 260 × 25 mm

Guardrail without Infill

Guardrail with Infill

4 mm Rod Infill

12 mm Tube Infill

Save more than just money

Modular stairs don’t just save you money—they save you time as well. Discover the advantages of modular stair systems.

The clear and easy-to-follow installation manual included with every shipment allows two people to complete the installation in 1–2 days. You can also watch the installation video by clicking here.

This solution can reduce construction costs by several thousand to even tens of thousands of złoty, making TLC Asta stairs an excellent alternative to expensive and difficult-to-finish exterior concrete staircases.

We also understand that preferences change over time. That is why every stair component is replaceable, allowing you to modify the configuration, style, color, or infill at any time.

Orders are processed within 7 days of order confirmation. Shipping is carried out by trusted courier services and typically takes 1–2 business days.

All of our stairs are covered by a 2-year warranty.

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