- Variants
- 2
- Thickness range
- 29.5–47 mm
- Documented EI
- EI 60
- Documented Rw
- Not published
DECISION SHEET
When to choose D112a
Best suited to
Lightweight continuous ceilings with a two-level F47/17 frame, in Standard or EI 60 build-ups.
Compare first with
D112b uses CD 60/27 and provides a broader fire range; D113 places CD profiles on one level to reduce frame depth.
Critical site checks
- ✓Allow 35 mm for the frame before adding boards and plenum depth.
- ✓Size hangers and spacing from self-weight plus every additional load.
- ✓Keep the plenum at 2 m or less unless specifically engineered, and provide movement joints every 15 m.
Available D112a 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 |
|---|---|---|---|---|---|---|---|
| D112a · 29.5 mm1 × boards per face | 29.5 mm | Knauf board 12,5 | F profile47/17 | Not published | Not published | Not published | Calculate this variant |
| D112a · 47 mm2 × boards per face | 47 mm | 2 × Knauf Fire Board 15 | F profile47/17 | EI 60 | Not published | Not published | Calculate this variant |
How to choose a D112a variant
Select the build-up by fire requirement and board type. Hanger and profile spacing, loads and suspension depth must be checked in D11.es.
Current technical source loaded
D11.es Techos suspendidos Knauf (2025) · 2025-09The Ferragut quantity report prepares
- ✓Ceiling boards
- ✓Compatible carrying profiles
- ✓Perimeter and suspension parts
- ✓Screws for every layer
- ✓Joint tape and compound
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 D112a
What is the Knauf D112a system?
D112a.es is a continuous suspended ceiling with a two-level F47/17 frame. The calculator includes a Standard build-up and a documented EI 60 option.
Which D112a variant should I choose?
Select the build-up by fire requirement and board type. Hanger and profile spacing, loads and suspension depth must be checked in D11.es.
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 D11.es Techos suspendidos Knauf (2025), revision 2025-09. Values that are not published are not inferred.
