best wood CLT BOX - CEILING FS Wooden box element for multi-storey timber construction with sound and fire protection requirements
The further development of the CLT BOX: The best wood CLT BOX - CEILING FS is a wooden box element consisting of two CLT boards with ribbed wood glued in between. The integrated sound insulation provides improved impact sound insulation in the low-frequency range.
Winner of the ARCHITECTS' DARLING AWARD 2020 GOLD in the category "Best Product Innovation Shell Construction":
- Highest overall satisfaction
- 100 % recommendation
- Highly significant from an architect's point of view
- Convincing in construction time reduction, sustainability and fire protection
Advantages:
- suitable for multi-storey construction
- improved impact sound insulation in the low-frequency range
- high resistance to fire
- high static load-bearing capacity with comparatively low weight
- large spans and thus column-free rooms possible
- low construction height
- high degree of prefabrication and simple connection of the ceiling elements for fast and economical assembly
- utilisation of advantages of solid timber and timber post and beam construction methods
- high-quality finished visible quality on the underside with additional surface finishing possible
![best wood CLT Box - Decke FS](/site/assets/files/1154/best-wood-clt-box-fs.jpg)
-
C24, GL 24h
Strength class
Fields of application
- Ceiling
Delivery formats
-
Type of wood & Quality
- local spruce, industrial quality
- scandinavian spruce, visual quality
- local spruce, premium quality
Width (mm) | |
900 to 1200 | |
220 | |
240 | |
260 | |
280 | |
300 | |
320 | |
340 | |
360 | |
380 | |
400 | |
420 | |
440 | |
460 | |
480 | |
Total height (mm) |
Length | 2.30–16.00 m, from 440 mm 8.00–16.00 m |
Width | 1000–1200 mm (900–1000 mm – Price on request) |
GLULAM ribs width | 80/100/120 mm depending on statics |
Upper CLT board | 60 mm |
Untere CLT Platte Dicke | 60 mm, in 90 mm bei erhöhten Brandschutzanforderungen |
Number of ribs | 3 |
Minimum production length | per element width 8.00 m |
up to F60/REI60 | lower CLT panel 60 mm |
up to F90/REI90 | lower CLT panel 90 mm |
Acoustic board | placed in the rafter and glued to the lower CLT board ex works (wood fiber acoustic board) |
Drillings | ex works (for putting in the customer-provided chippings) |
Chippings | supplied in the required quantity and in 25 kg PE sacks and put in by the customer on site |
Chippings plan | included in scope of delivery |
Filling wood
- filling wood can be glued on in the factory
- for passing through vertical loads
Technical data
Approval | ETA-21/0336 |
Strength class | Board C24; rib GL 24h |
Application classes | Use in application classes 1 and 2 according to EN 1995-1-1 |
Drying | Kiln dried, wood moisture max. 15 % at delivery |
Bonding | Clear, water-proof gluing with polyurethane adhesives (free of formaldehyde) |
Lamellae | Board: 20, 30 mm; rib 40 mm |
General information | Planed on four sides, bottom side chamfered 4 mm (measured diagonally) |
Heat conductivity | Rib: λ = 0.13 (W/m*K); board: λ = 0.12 (W/m*K) according toETA-21/0336 |
Specific heat capacity | 1600 (J/kg*K) according to EN ISO 10456 |
CLT board diffusion resistance | μ 20 (damp) / 50 (dry) in accordance with EN ISO 10456 |
Emission class | E1 according to DIN EN 717-1 |
Reaction to fire | D-s2, d0 according to DIN EN 13501-1 |
Fireproofing | Verification possible via the free best wood STATICS software |
Airtightness | Airtight after testing in accordance with EN 12114 from 60 mm |
best wood CLT BOX - THE solution for multi-storey timber construction
Improved sound insulation
The integrated sound insulation of the best wood CLT BOX - CEILING FS consists of a wood fibre acoustic board and the best wood fill supplied. This specially coordinated combination ensures improved impact sound insulation in the low-frequency range.
![](/site/assets/files/6012/best-wood-schneider-clt-box-decke-fs-schallschutz-grafik3.576x0.jpg)
High fire resistance
The best wood CLT BOX - CEILING FS was tested at MFPA Leipzig GmbH for fire resistance according to DIN EN 1365-2:2015-02 and DIN EN 1363-1:2012-10. In the process, it was able to achieve F60/F90 or classification report REI60/REI90 with a structure in accordance with the general building authority test certificate.
The fire protection test was carried out with wood fibre acoustic board and fill.
![](/site/assets/files/7327/best-wood-schneider-clt-box-decke-fs-brandschutz-grafik3.576x0.jpg)
Improved sound insulation
The integrated sound insulation of the best wood CLT BOX - CEILING FS consists of a wood fibre acoustic board and the best wood fill supplied. This specially coordinated combination ensures improved impact sound insulation in the low-frequency range.
![](/site/assets/files/8100/best-wood-clt-box-statik3.576x0.jpg)
Accessories
Here you will find popular accessories for this product.
![](/site/assets/files/5437/best-wood-zubehoer-holz.200x0.jpg)
Suitable accessories
Find everything that is right and good for working and processing our timber products.