Building an Outdoor Staircase: What Does It Cost?

Building an outdoor staircase costs an average of 1,450 euros

Installing an outdoor staircase typically ranges between 1,140 and 1,760 euros.

Outdoor stairs – stone as the best material

Before you start building an outdoor staircase, you should first check the requirements set by your state building code (Landesbauordnung).

In addition, the DIN standard 18065 is crucial, as it defines the specifications for tread depth, riser height, width, and stair layout.
By following these regulations, you ensure a safe and compliant staircase.

You should also familiarize yourself with the different types of outdoor stairs. For example, simple log stairs (Knüppeltreppen) are easy to build but less durable since they are made of wood.

A better option is solid outdoor stairs with a concrete foundation, which can be made from block steps, laying steps, or standing steps. These stairs are made of stone and supported by a stable substructure.

Factors influencing the price

• Type of stone selected

• Cost of the substructure

• Stone staircase vs. prefabricated staircase

• Craftsman costs

How much does a poured concrete staircase cost?

The largest portion of costs for a cast-in-place concrete staircase comes from labor.
This investment is worthwhile, as only skilled craftsmen can produce a safe, durable, and visually appealing staircase efficiently.

You can expect the following costs:

• Formwork and casting: 500–700 euros

• Structural calculation: 500–1,000 euros

Material costs for pouring concrete on-site

Aside from block or modular stairs, you can also have your outdoor staircase poured directly on-site, ideal for concrete stairs.
This is particularly suitable for custom shapes or special design requirements.

Material costs for a poured-on-site concrete staircase:

• Formwork boards, nails, and concrete: approx. 40 euros

• Handrail: approx. 100 euros

• Thin stone slabs (2–3 cm thick): variable prices

How much does a craftsman cost?

In addition to the kit or material costs, you should also account for craftsman labor.

Transporting a stair kit costs 100–300 euros per unit.
If you hire a professional to assemble it, expect 500–1,500 euros per kit.

For delicate materials such as wood or glass, extra precautions and weather protection measures may be required during installation.

What does a prefabricated outdoor staircase kit cost?

As an alternative to stone block stairs, you can opt for a prefabricated staircase kit.

These are faster to install and require less effort.
If you have sufficient skills, you can even assemble them yourself — but you should always have a professional inspect the final installation for safety.

Approximate kit prices:

• Metal kit: 300–1,000 euros per unit

• Stone kit: from 1,000 euros per unit

• Concrete kit: from 900 euros per unit

• Wooden kit: from 400 euros per unit

• Glass kit: from 2,000 euros per unit

Installation costs

Additional costs arise from the galvanized steel substructure.
These are often already included in the cost per step or block.

You should also budget for stone delivery and installation by professionals, as costs depend heavily on the type, size, and conditions of your outdoor area.

A detailed cost estimate from the contractor will list all expected delivery and installation costs.

Cost of a stone outdoor staircase

Stone is the most popular material for outdoor staircases — it is weather-resistant and aesthetically appealing.

Steps can become slippery in icy conditions, so spreading grit or sand and installing a handrail is recommended.

Estimated costs per block step (100 × 35 × 15 cm):

• Granite: 20–80 euros each

• Sandstone: 70–120 euros each

• Basalt: 120–170 euros each

• Travertine: 60–100 euros each

Tip: Choose slabs at least 3–5 cm thick for optimal stability.

Example Calculation: Building an Outdoor Staircase

For an outdoor area, a metal staircase is required.
A prefabricated kit is chosen and assembled by professionals.