- Variants
- 1
- Thickness range
- 123 mm
- Documented EI
- EI 90
- Documented Rw
- 58 dB
DECISION SHEET
When to choose W113
Best suited to
High-mass partitions with three boards per side where documented requirements exceed a two-layer W112 solution.
Compare first with
First verify whether a W112 variant meets the required height, EI and Rw; W113 adds material, weight and installation time.
Critical site checks
- ✓Use the correct screw length for each of the three layers and the actual profile gauge.
- ✓For fire protection, keep 250 mm screw spacing and treat the joints in every layer.
- ✓Check surface weight and permitted height for the exact build-up before replacing any board.
Available W113 variants
Choose a specific build-up to open the quantity report with that system already loaded. Only performance values published by the associated technical source are displayed.
| Build-up | Thickness | Boards | Frame | Fire | Acoustic | Max. height | Calculate this variant |
|---|---|---|---|---|---|---|---|
| W113 · 123 mm3 × boards per face | 123 mm | 3 × Knauf Standard A board 12,5 | Knauf stud and channel 48 | EI 90 | Rw 58 dB | 3.1 m | Calculate this variant |
How to choose a W113 variant
Check weight, permitted height and screw length for every layer. Replacing a board can change the published system performance.
Current technical source loaded
W11.es Tabiques Knauf con estructura metálica (2026) · 2026-07The Ferragut quantity report prepares
- ✓Boards on both faces
- ✓Compatible studs and channels
- ✓Cavity insulation
- ✓Screws for every layer
- ✓Tape, compound and acoustic seal
What this system family contains
The composition comes from the loaded variants and identifies the work items involved before preparing the quantity report.
Questions about Knauf W113
What is the Knauf W113 system?
W113.es places three Knauf boards on each side of a single frame. It is intended for interior partitions requiring a documented multi-layer build-up with higher performance.
Which W113 variant should I choose?
Check weight, permitted height and screw length for every layer. Replacing a board can change the published system performance.
What does the calculator quantify?
The tool estimates complete purchase units for boards, profiles, insulation, screws, joint treatment and accessories compatible with the selected build-up.
Where does the technical data come from?
Performance data comes from W11.es Tabiques Knauf con estructura metálica (2026), revision 2026-07. Values that are not published are not inferred.
