Innovative and modular electrical room with wooden structure
Fiberwood needed a conversion room for its pilot machine in Järvenpää. Croom completed the delivery in a short timeframe with a hybrid solution.
Fiberwood develops fossil-free building and packaging materials from forest industry by-products and natural fibres. The pilot plant in Järvenpää will be similar in scale to the future factory and will serve as the basis for internationally scalable production. Reducing the carbon footprint of construction is a key megatrend, which is why Fiberwood's products are attracting interest worldwide.
''Croom listened carefully to our needs, and the solution met them well. The response time was fast and the project progressed within a timeframe that suited us..”
- Antti Romo, Chief Designer, Fiberwood Oy
Implementation of the converter from combinable modules
In Croom's solution, the converter station was implemented as a two-part module, for logistical and practical reasons. One of the modules was visited by a third operator for fitting out, after which both modules were delivered to the site at the same time.
The project required careful coordination; fast delivery from order, timing of module deliveries, challenging transport conditions at the site. The collaboration started when Fiberwood contacted Croom.
Smooth cooperation and fast response
The success of the project depended on close and rapid cooperation between Fiberwood and Croom. The need was to get the facility up and running quickly: from request for quotation to delivery took less than 10 weeks.
In this project, Croom was responsible for:
- Designing the structure together with Fiberwood to meet your needs
- Construction of the equipment room and structural engineering preparation, including penetrations, cable ducts integrated into the structure and connection of modules
- Delivery and installation of modules on site
The technically demanding structure was implemented using the Croom hybrid method
To achieve the required delivery time, the wood structure developed by Croom and Metsä Wood was used. The site was built with a hybrid design, using Croom's well-known patented method and the wood structure together.
Several important structural choices were made in the solution:
- Layering of the structure to achieve sufficient rigidity for heavy equipment and large equipment space
- Special design of roof and walls for load and connectivity
- Integration of lifting points into the substructure
- Reinforcing the wall joints between modules
”The installation phase went smoothly and safely - transport, lifting, hauling and installation went according to plan. The installation solution provided by Croom proved to work well, and the specific needs of the converter supplier were also well taken into account. The end result was praised by all parties involved.” - Antti Romo, Chief Designer, Fiberwood Oy
Innovative solutions for sustainability
The Croom solution achieves a lower carbon footprint, as the construction method allows for less material use while still achieving a strong and load-bearing structure. The hybrid timber-framed model used in this project is one of Croom's solutions to achieve flexibility in projects and a lower carbon footprint. The solution used will be reviewed on a project-by-project basis to ensure that it meets the necessary requirements and the client's needs.
The overall visual design

Modular converter house combines durable wood construction and customized design

A well thought-out structural design enabled a neat and smooth installation for the client

Croom's equipment room supports Fiberwood's international growth
Summary
Overall, the project was efficient and smoothly implemented. The design and implementation decisions were chosen based on what best met the client's needs.
Croom's approach allowed Fiberwood to be aware of the progress of the project and to continue its core business without delay. There was close cooperation between Fiberwood, Croom's production and the end customer, and issues that arose during the project were resolved in a flexible manner.
''Three things come to mind along the way: 1. quick response and prompt quotation process at the initial stage, 2. high quality and visually elegant package, 3. smooth and quick installation.''
- Jari Varjotie, Production Manager, Fiberwood Oy

Find out more about Fiberwood: www.fiberwood.com
Fiberwood is a materials technology start-up that develops fossil-free insulation and packaging materials for the construction industry from forest industry by-products and other natural fibres. Fiberwood utilises waste by processing it into recyclable and carbon-sequestering valuable materials for a wide range of applications. Breathable, recyclable and compostable insulation and protective products are ecological alternatives to mineral wool and cellular plastic-based insulation and packaging cushioning.