In the ever-evolving world of construction, innovation and efficiency are key to staying ahead. Tomas Šlyžius, Sales Manager at Lithuanian roof truss and beam manufacturer UAB Santomartis, knows this all too well.
Since partnering with MiTek in 2020, UAB Santomartis has been manufacturing Posi-Joist systems, which are transforming how its house building projects are being designed and constructed.
Facilitating modern construction needs
Posi-Joists are still a relatively new construction solution in Lithuania, but the benefits they offer are beginning to put the system on the map as a modern method of construction choice for builders, designers and homeowners.
MiTek’s Posi-Joist combines the strength of timber with the versatility of a steel web, offering unparalleled design freedom and structural capabilities. UAB Santomartis manufacture Posi-Joists off-site for precision engineering. They are designed and made to the specific loads, slopes and spans required, which isn’t possible with other solid wood products.
Being produced to specific dimensions means they can be assembled on site quickly.

“We produce Posi-Joist according to the exact specifications of each project,” Tomas explains. “This level of customisation and quality control ensures that our clients receive a product that not only fits perfectly but also performs exceptionally well.”
“Designers appreciate the unparalleled design freedom of Posi-Joist when designing roofs and floors in a wide range of buildings. Using Posi-Joist in the structure of the outer shell allows for creating interior rooms of various layouts, taking advantage of its expansion possibilities.”
Another standout feature of Posi-Joists is the open web design, which facilitates the integration of mechanical and electrical services without the need for additional drilling or cutting. This advantage is particularly significant in modern construction, where the demand for mechanical ventilation and energy-efficient heating systems is growing.

A game-changer for builders
For builders, the benefits of using Posi-Joist go beyond just installation. The system’s capacity to span larger distances means fewer supporting walls and columns are required, resulting in more open and flexible interior layouts. This not only enhances the aesthetic appeal of the space but also significantly cuts down on installation time and construction costs.
“Posi-Joist is a cost-effective solution in the long run,” Tomas emphasises. “Although an initial comparison of the cost per linear metre with alternative continuous beam solutions may suggest otherwise, Posi-Joist’s ability to connect longer sections, unlike metal beams, and its open design, shortens installation time.”
A promising future for Posi-Joist in Lithuania
Looking ahead, Tomas is optimistic about the future of Posi-Joist in Lithuania. As more builders and homeowners experience the benefits first-hand, the demand is set to grow.
“We have no doubt that Posi-Joist will continue to gain popularity in Lithuania,” Tomas concludes. “It’s an innovation that not only meets the current needs of the construction industry but also anticipates future challenges. Whether it’s for residential, industrial, or commercial projects, Posi-Joist offers a versatile and reliable solution.”
Hear what Tomas has to say about using Posi-Joist on a recent residential project.