Prefabricated stairs

Precast concrete stairs Intervention stairs

Prefabricated st airs are ready-made communication elements made as monolithic prefabricated concrete elements, including stair treads, landings and steps. They are produced using the method of molding in steel molds from concrete class C35/45, ensuring dimensional precision and high surface quality. They are used as elements of staircases in residential buildings, public facilities and as outdoor and off-road stairs.

For each investment prefabricated stairs price is calculated individually, taking into account the type of stairs, dimensions and surface finish. We guarantee competitive business conditions, professional technical advice and timely delivery. We invite you to get a free quote tailored to your construction project.

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Technical characteristics of prefabricated stairs

Prefabricated stairs are a comprehensive structural solution in vertical communication systems of buildings. They are manufactured from structural concrete of class C35/45 or C40/50, ensuring adequate load-bearing capacity and durability. In addition, each prefabricated staircase is protected against corrosion by using appropriate reinforcement lagging of at least 35 mm.

The production process takes place under controlled factory conditions, where precast concrete stairs are formed in precision steel molds. Then intensive compaction of the concrete mixture by vibration is applied. At the same time, the surface of the steps is profiled to provide anti-slip properties.

Prefabricated stairs – advantages of the solution

Ready-made concrete stairs are characterized by a much higher quality of workmanship than elements poured on site. Production in hall conditions allows to obtain the ideal geometry of each step. In addition, prefabricated st airs are subjected to quality control, which includes checking dimensions and strength parameters.

The prefabrication system makes it possible to manufacture stairs of any configuration – single-run, double-run or staircase procedure. Standard widths of gears are from 1.0 to 1.5 meters, adapted to functional requirements. But at the same time, the construction of prefabricated stairs provides full stability and rigidity without additional support.

The precast concrete staircase exhibits excellent fire resistance at REI120 to REI240. The massive structure also provides effective sound insulation between floors. As a result, prefabricated stairs meet the highest requirements of building and fire regulations.

Reinforcement is made of A-IIIN class steel (RB500W) in an arrangement adapted to the imposed loads. The number and arrangement of reinforcing bars in each prefabricated staircase is determined on the basis of static calculations. Then the finished concrete stairs receive technical documentation with load-bearing parameters.

Advantages of prefabricated stairs

Speed of installation of prefabricated stairs

Prefabricated stairs are delivered as complete pieces ready for immediate installation. Installing an entire flight of stairs using a crane takes a few hours instead of the weeks needed for traditional construction. In addition, the elimination of formwork and reinforcement at the construction site significantly reduces labor. As a result, the installation of prefabricated stairs reduces construction time by 80%.

Precision of dimensions

Production in steel molds ensures dimensional accuracy of each step with a tolerance of +/- 3 mm. Identical height and depth of all steps in the run guarantees comfort and safety of use. In addition, the smooth surface of prefabricated concrete stairs does not require additional leveling. As a result, prefabricated concrete stairs are immediately ready for finishing.

Strength and load-bearing capacity of prefabricated stairs

The use of C35/45 grade concrete in prefabricated stairs ensures a load carrying capacity of 5.0 kN/m². Appropriate reinforcement with RB500W steel guarantees the transfer of dynamic loads without scratching. In addition, monolithic construction eliminates vibration and creaking during use. As a result, prefabricated stairs maintain their parameters for decades of use.

Fire resistance of the structure

Precast concrete stairs have a fire resistance class of REI120 as standard. The solid concrete structure provides an effective barrier to the spread of fire. Subsequently, the absence of combustible structural elements increases the safety of evacuation. Such resistance makes precast stairs ideal for escape routes.

Possibility of finishing prefabricated stairs

The smooth surface of finished concrete stairs provides an excellent base for various finishing materials. It is possible to cover with ceramic tiles, natural stone or carpet. In addition, precast outdoor stairs can have a textured anti-slip surface. Such versatility allows it to fit into any architectural concept.

Cost-effectiveness of the solution

The use of prefabricated stairs generates savings in the cost of labor and auxiliary materials. Elimination of system formwork, reinforcement and ready-mixed concrete reduces expenditures by 40-50%. In addition, the shorter execution time translates into faster commissioning of the building. As a result, the total cost of stair construction can be 30% lower.

Service life of prefabricated stairs

Precast concrete stairs are designed for a minimum of 100 years of use. The use of concrete with frost resistance class F150 guarantees resistance to weather conditions. In addition, the appropriate reinforcement cover of 40 mm protects the steel from corrosion. Thanks to these parameters, prefabricated stairs retain their properties throughout the life of the building.

Variety of types and configurations

The prefabrication system makes it possible to make stairs with any geometric parameters. There are single-run, double-run, interval or spiral stairs. Then it is possible to make prefabricated slope stairs for off-road applications. Such flexibility allows optimal adaptation to any architectural design.

Application of prefabricated stairs

Prefabricated stairs are universally used in all types of construction as elements of vertical communication. The primary use is for staircases in multi-family residential buildings and office buildings. In addition, prefabricated concrete stairs are an optimal solution for public buildings requiring high durability.

In residential construction, prefabricated concrete stairs are used as main walkways. They are especially often used in apartment blocks and development estates. Then, in single-family houses, prefabricated stairs are installed as stairs to the basement or utility attic.

Prefabricated outdoor stairs are perfect for building entrances. They are used at schools, offices, hospitals and shopping centers. In addition, they are used as terrain stairs in parks, on slopes or amphitheaters. Thanks to their resistance to weather conditions, prefabricated stairs maintain their aesthetics for years.

Special use is found for prefabricated stairs in industrial and storage facilities. External escape stairs made as prefabricated products meet fire safety requirements. At the same time, technical stairs for handling equipment are characterized by high load-bearing capacity. As a result, prefabricated concrete stairs provide safe communication in production facilities.

Prefabricated slope stairs are increasingly used in infrastructure construction. They are used for underpasses, pedestrian bridges or railroad platforms. In addition, the installation of prefabricated stairs at sports venues enables the rapid construction of grandstands. Thanks to their modularity, prefabricated stairs create coherent communication systems.

Technical parameters of prefabricated stairs

Prefabricated st airs are manufactured in accordance with the PN-EN 14843 standard for prefabricated stair elements. The standard class of concrete is C35/45 with a characteristic strength of 45 MPa. In addition, each precast concrete staircase has a declaration of performance and CE marking.

The strength parameters of prefabricated stairs include a load capacity of 5.0 kN/m² for residential buildings. Fire resistance is determined at REI120 to REI240, depending on the thickness of the running board. Subsequently, the friction coefficient of the tread surface is a minimum of μ = 0.6. The sound insulation of precast concrete stairs is Rw = 55-60 dB.

The reinforcement of prefabricated stairs is made of A-IIIN class steel (RB500W) with diameters from 12 to 20 mm. The spacing of main bars is 100-150 mm, depending on the imposed loads. In addition, distribution bars fi 8-10 mm are used every 200-250 mm. The lagging of the reinforcement is a minimum of 35 mm from the bottom and 25 mm from the top.

The standard dimensions of prefabricated stairs are the width of the flight 1000-1500 mm, step height 150-175 mm. The depth of the step is 250-300 mm according to ergonomic requirements. However, the thickness of the running board is 120-180 mm, the resting board is 150-200 mm. The unit weight of finished concrete stairs is about 350-450 kg/m² of projection area.

Installation of prefabricated stairs

Preparation of the support structure for prefabricated stairs requires making support sockets in the walls or beams. First, the height ordinates of the supports are checked with a tolerance of +/- 10 mm. Then a layer of leveling mortar or elastomeric pads is laid in the sockets. In addition, the installation axes that determine the exact position of the precast concrete stairs are determined.

Transportation of prefabricated stairs to the construction site is carried out using low-loader sets. Unloading is carried out with a crane with the appropriate lifting capacity using belt slings or assembly frames. In addition, the elements are stored in the assembly position on stable supports. Before installation, each prefabricated staircase is checked for compliance with the project.

Embedding of finished concrete stairs begins with the lower rest or support beam. The element is lifted at the points indicated by the manufacturer, maintaining balance. At the same time, the stair treads are lowered slowly into the support sockets with a minimum support of 100-150 mm. Correct alignment is controlled with a spirit level and plumb line.

Stabilization of prefabricated stairs is realized by concreting the joints in the support sockets. The connecting reinforcement is anchored in the mounting holes filled with low-shrinkage mortar. Then the fusion with the building structure is performed by concreting the rims. The assembly of prefabricated stairs is completed by filling the joints with elastic sealing compound.

Quality control of the installation includes verification of the stability of each run and rest. The usable dimensions – the width and height of the steps and the inclination of the run – are verified. In addition, the continuity of handrails and balustrades mounted to prefabricated stairs is checked. As-built documentation should include acceptance protocols and certificates of the connecting materials used.

Price of prefabricated stairs in 2024 and 2025

Prefabricated stairs price is shaped by the type of construction, dimensions and complexity of geometry. The calculation also takes into account surface finishing, specialized transportation and installation services. In addition, the final pricing is affected by the number of floors and repetition of elements. In 2024, prefabricated staircase prices were observed to stabilize with increasing demand.

Prefabricated stairs price – cost structure

The cost of prefabricated stairs primarily includes the value of high-quality concrete and reinforcing steel. The prefabricated stairs price also includes the expense of precision steel molds and the manufacturing process. Then the costs of surface treatment, making assembly holes and quality control are added. In 2024, the share of materials in the price of precast concrete stairs was about 50-60%.

Factors affecting the price of prefabricated stairs

Pricing for prefabricated stairs depends mainly on the type – single-run, double-run or interval stairs. Prefabricated stairs price for a straight run is 20-30% lower than for a treatment staircase with a complex geometry. In addition, prefabricated exterior stairs with a textured surface are 15-20% more expensive. Individual dimensions and non-standard solutions increase production costs.

Cost optimization when buying prefabricated stairs

The price list of prefabricated stairs offers more favorable rates when ordering entire staircases. Prefabricated stairs price when purchasing a set for a multi-story building can be lower by 10-15%. In addition, the standardization of dimensions in the project reduces production preparation costs. Promotions are planned for residential developments in 2025.

The calculation of prefabricated concrete stairs should take into account the total cost of making the staircase. Prefabricated staircase price often turns out to be competitive with traditional construction after adding labor. At the same time, savings are due to the elimination of formwork and reduced lead time. Installation of prefabricated stairs reduces the total cost by 30-40%.

Additional costs in the implementation of prefabricated stairs

How much do prefabricated stairs cost with complete service is a question that includes delivery and installation. Prefabricated st airs transport price depends on the dimensions of the elements and the distance from the factory. Then the cost of installation by crane is usually 20-25% of the value of prefabricated elements. In 2024, the average cost of comprehensive implementation of prefabricated concrete stairs was 800-1200 PLN/m² of projection.

The price offer of prefabricated stairs often includes additional elements of the system. Prefabricated stairs price may include steel balustrades, intermediate landings or finishing elements. In addition, many manufacturers offer static calculations and technical advice in the price. In 2025, packages for entire buildings will be available.

Price comparison of different types of prefabricated stairs

The value of precast exterior stairs differs from interior stairs due to requirements. Prefabricated stairs price of outdoor elements made of frost-resistant concrete is 15-20% higher. In addition, precast reinforced concrete stairs price depends on the environmental exposure class. The estimate should take into account the intended use and operating conditions.

The rate for prefabricated stairs in 2024 was at 700-1000 zloty/m² for standard straight flights. Prefabricated stairs price for special elements like spiral stairs could reach 1500-2000 zloty/m². However, with large orders it was possible to negotiate discounts. The forecast for 2025 assumes a price increase of 4-6% related to inflation.

The cost estimate for prefabricated stairs should be prepared individually for each project. Prefabricated stairs final price depends on the specifics of the project, the number of floors and the installation schedule. Then it is worth considering the possibility of staged delivery or optimization of logistics. Feel free to contact us for a personalized offer for prefabricated stairs tailored to your construction project.

Here are just some of our implementations of prefabricated stairs. This list includes only major investments on which our prefabricated products have appeared.

What are ?

Precast concrete units are prefabricated building components produced off-site that can be assembled into larger structures at the project site. These are standard, repetitive modules produced in series at industrial plants, which greatly speed up and facilitate construction work in various construction sectors.

What are the types of ?

Reinforced concrete. prestressed concrete, post-tensioned concrete – 20+ types

What is the use of ?

Rapid modular construction of various structures

What are the properties of the ?

Repeatability, precision, speed of installation, durability

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Prefabricated stairs

Technical characteristics of prefabricated stairs

Prefabricated stairs – advantages of the solution

Advantages of prefabricated stairs

Speed of installation of prefabricated stairs

Precision of dimensions

Strength and load-bearing capacity of prefabricated stairs

Fire resistance of the structure

Possibility of finishing prefabricated stairs

Cost-effectiveness of the solution

Service life of prefabricated stairs

Variety of types and configurations

Application of prefabricated stairs

Technical parameters of prefabricated stairs

Installation of prefabricated stairs

Price of prefabricated stairs in 2024 and 2025

Prefabricated stairs price – cost structure

Factors affecting the price of prefabricated stairs

Cost optimization when buying prefabricated stairs

Additional costs in the implementation of prefabricated stairs

Price comparison of different types of prefabricated stairs

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This is how customers write about us

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