The SORIWA Core is used in door openings as a vertical reinforcement profile. It is a square timber insert that is inserted directly into the SORIWA Multi Profile, providing additional stability and a uniform support surface for the drywall boards. This allows the SORIWA Multi Profile to serve as a replacement for a conventional UA profile.
Can be combined with:
3 m
3,5 m
4 m
in the area of door openings as a vertical stiffening profile
This product is part of the SORIWA drywall system and is used exclusively in combination with other system components.
Interested in purchasing our products? Use our dealer locator to find a specialist retailer near you.
If your local retailer does not yet carry our products, please feel free to contact us.
Can be combined with:
Enables the SORIWA Multi Profile to replace UA-profiles
Negative carbon footprint*
Easy and secure installation
Enables steel-free drywall construction
*A1-A3 EPD-Kiwa-EE-221187-DE; in accordance with ISO 14025 and EN 15804+A2:2019
Explore the different configuration options and replace the entire stud framework of a drywall partition.
The wall properties of the SORIWA Multi-System have been specifically developed and tested to meet the key requirements for interior construction, including fire behavior, sound insulation, stability, and load-bearing capacity for console loads.
EI30 and EI60*
Up to 44.2 dB with single-
, and 52.3 dB with double paneling*
tested and passed
0.4–0.7 kN/m
s (= approx. 40–70 kg/m)
*Various wall structures tested; values apply when the exact construction type is followed.
The SORIWA Core is a precisely fitting square timber that is inserted directly into the SORIWA Multi Profile in the area of door openings. It provides additional stability and creates a continuous support surface for the cladding. When used together, the system replaces a traditional UA profile – completely steel-free.
The SORIWA Core is a precisely fitted wooden frame that is inserted directly into the SORIWA Multi Profile – no additional fastening is required. It provides the profile with the necessary stability for door installations and, when combined with the SORIWA Multi Profile, serves the function of a traditional bottom rail. It is secured to the floor and ceiling using a bracket.
The SORIWA Core consists of kiln-dried spruce framing lumber with four rough-sawn sides. The wood moisture content of approximately 18% (KD) ensures dimensional stability, a precise fit, and minimal warping when used in building systems.
