When the new Sickla Central building was planned in Stockholm, the vision was ambitious: a 25-floor architectural landmark combining a metro station, shopping facilities, and state-of-the-art offices—all built with sustainability and functionality in mind and aiming for BREEAM Outstanding certification.
The project would become a centerpiece of Sickla's transformation into a central public transport hub, expected to handle 1,300 passengers per hour by 2030.
In total, four Peikko countries—Sweden, Latvia, Lithuania, and Finland—contributed to the project's success, demonstrating Peikko's ability to coordinate complex, large-scale projects efficiently across borders while maintaining consistently high standards of quality and precision. Peikko’s units collaborated with various project parties throughout the design and construction.
Customer challenges: limited space and complex coordination
Constructing a high-rise building directly above a new metro station presented several challenges. The confined site area left almost no room for material storage, with only a 5–10-meter perimeter around the structure. “Every delivery and installation step had to be carefully timed,” says Edgars Rutkovskis, Sales Manager of Peikko Latvia. “Even the smallest delay could have disrupted the entire schedule.”
The project also required seamless coordination between multiple international partners and design teams. With parallel façade and structural installations, precision and timing were critical to maintaining safety and efficiency on site. The demanding project required innovative structural solutions:
- Architectural ambition meets structural efficiency: The building required open, flexible office spaces with long spans and minimal structural intrusions, while maintaining the strength to support 25 floors above ground and extensive underground parking.
- Urban site constraints: With the construction footprint nearly identical to the building's dimensions, on-site material storage was virtually impossible. Simultaneous installation of the structural framework and façade systems required precise coordination and timing.
- Sustainable construction goals: Achieving the highest BREEAM Outstanding certification meant every material choice—from climate-reduced concrete to structural systems—had to support environmental objectives while maintaining structural integrity.
- Integration with critical infrastructure: The ground floor houses the metro entrance, requiring careful coordination between the building's structure and the station being constructed 35 meters below ground level.
Peikko’s solution: efficiency through collaboration and technology
Peikko was involved from the very beginning of the project, working closely with the design team to develop efficient and practical frame solutions that matched the ambitious architectural vision. Peikko’s DELTABEAM® Frame system was selected for its ability to deliver long spans, open layouts, and fast installation—making it ideal for a high-rise building with limited site access. Most of the DELTABEAM® elements were produced in Lithuania, with some transferred to Finland to balance production loads and ensure on-time delivery.
"A key success factor in this project was the strong involvement of Peikko Lithuania's engineering team, offering their design expertise. It played a crucial role not only in minimizing design errors but also in winning the project and ensuring its successful execution," explains Rutkovskis.
The project unfolded in two distinct phases:
- Phase I (Levels 1-4): Focused on infrastructure connected to the railway station, this phase was executed by Prefabsystem with Peikko Sweden supplying DELTABEAM® Composite Beams and composite steel-concrete columns. Some columns were exceptionally large, weighing over 6.5 tons with diameters of 0.7 meters, demonstrating the system's capability to handle extraordinary loads while maintaining slender, architecturally appealing profiles.
- Phase II (Levels 5-24): The main office tower was constructed by UPB, Peikko Latvia's client, using DELTABEAM® Green beams—contributing to the project's sustainability targets and reducing its environmental footprint.
The structural solution combined DELTABEAM® Composite Beams with filigree slabs acting as permanent formwork with integrated bottom reinforcement. Compared to traditional cast-in-situ concrete floors, this approach significantly reduced construction time and improved on-site efficiency—critical advantages given the extremely limited site area.
“Peikko has much more to offer than just the technology and concrete connections,” Rutkovskis concludes. “We are professionals who aim to make the construction process enjoyable for our customers, rather than stressful. Projects like this should be built with passion and pride, so that everyone involved feels inspired to say: “I was part of making this happen.”
Project facts
Project size: 16,500 m²
Floors: 25
Developer: Atrium Ljungberg
Construction Company: Prefabsystem, UPB
Structural Designer: Sitowise
Architect: Kanozi Arkitekter
Completion year: 2025
Curious to know our other reference projects? You’ll find them here.
Product highlight: DELTABEAM® Frame
Complete frame solution for open, flexible, and efficient multi-story buildings.
- Open layouts: Long spans for maximum design freedom
- Fast installation: Prefabricated system ensures quick, safe on-site assembly
- Lightweight strength: Reduces total building weight and foundation loads
- Integrated fire resistance: Up to 4 hours without additional protection
- Complete solution: Beams, columns, and connections from one trusted partner
This article was originally published in Peikko’s customer magazine Connections 2026.