These large format load-bearing frame panels are manufactured in the factory and transported to the construction site. They are ideal for the wooden roofing of medium to large areas, where installation must be quick and must ensure an optimal result in terms of aesthetics, static, acoustics and thermal performance. The panels are produced in the standard size of 500×200 cm. or in longer lengths or multiples of the maximum size. The visible panel consists of three-layer crossed fir slats of different thicknesses, with a smooth surface, with decorative milling and custom machining or with machining for soundproofing. For wooden roofs, as well as for wooden floors, we favor the use of special wooden slabs of thicknesses mm 90 -130 -180 up to 30 meters long as a viable alternative to XLAM paneling. Our solutions, which are easy to move, also offer greater load bearing capacity as they are integral to each other thanks to steel knots that provide stability and bracing.