TWIN HERRINGBONE
PRODUCT INFORMATION

B 11.0

 

B 11.0

 


PRODUCT DESCRIPTION

Junckers 14 mm (9/16”) and 22 mm (7/8” ) Solid Hardwood Twin Herringbone floors are factory finished and ready to use right after installation.

Each floor board consists of two rows of staves. One row with a full length stave and one row with two half length staves. The staves are assembled by a glued double dovetail construction.

Each floor board is tongued and grooved on all four sides, and is available as right and left hand floor boards. See Fig. 1.

Fig. 1


PRODUCT DATA / TOLERANCES

Nominal board dimensions
Thickness: 13.8 and 21.8 mm (±0.2 mm)
Width: 129.0 mm (5 5/64”)  (±0.2 mm)
Length: 516.6 mm (20 11/32”) (±0.2 mm)

Drying method
Beech, all variants: Press dried.
Oak and Ash, all variants: Kiln dried.

Average moisture content
Beech, Oak and Ash, all variants:
8 % (±2 %).
Black Oak: 9 % (±2 %).

Precision engineering
Landing Deviation: 0.2 mm (0.3 mm in localized areas). 
Floor Board ends are right angled at ±0.3 mm.

PRODUCT RANGE

Product

Grade

Surface

Product variants

Beech
Beech Sylvaket
Ash (Only 22 mm)
Oak

 

Harmony

Ultra matt lacquered
Silk matt lacquered
Clear oil
Untreated

Colours*

Beech SylvaRed

Harmony

Ultra matt lacquered
Silk matt lacquered
Untreated

 

Ash Nordic (Only 22 mm)
Beech Nordic
Oak Nordic

Harmony

White pigmented and
ultra matt lacquered

 

Black Oak

Harmony

Clear Oil
Untreated 

 

* Please check current product program at our web page.


TECHNICAL PROPERTIES

Resistance to Indentation:
Oak (all variants): Approx. 3,4 Hardness Brinell
Ash (all variants): Approx. 3,4 Hardness Brinell
Beech (all variants): Approx. 3,7 Hardness Brinell

Slip Resistance, DIN 18032/2 (preliminary):
Lacquered & oiled: Approx. 0.4

Fire Classification: Cfl – S1 (DIN EN 13501-1)

Thermal Conduction, (Transmission coefficient):
Approx. 0.17 W/mK

Heat Resistance: Approx. 0.08 m² K/W

Light reflection value (LRV)
BS 8493:200+A1:2010

 

Ultramatt

Silkmatt

Ash
Ash Nordic
Beech
Oak
Oak Nordic
Black Oak

-
52
44
27
30
7

49
-
43
26
-
-

FACTORY SURFACE TREATMENT

Lacquered
Beech, Beech SylvaKet, Beech SylvaRed, Oak & Ash:
Priming: Several coats of UV-light curing primer.
Top finish: Two-component polyurethane lacquer, silk- or ultra matt.
Total film thickness: Min. 40 µ.

Ash Nordic, Beech Nordic & Oak Nordic:
Priming: White toned stain. Intermediate treatment: Several coats of UV-light curing lacquer.
Top finish: Two-component polyurethane lacquer, ultra matt. Total film thickness: Min. 40 µ.

Black Oak:
Pre-treatment: NH3-treatment to achieve the dark colour.
Intermediate treatment: Several coats of UV-light curing lacquer.
Top finish: Two-component polyurethane lacquer, ultra matt.
Total film thickness: Min. 40 µ.

Oiled
Priming: Surface saturation using oxidative drying urethane oil.
Top finish: Oxidative drying urethane oil.
Total oil consumption: Addition to a full surface saturation.

Untreated: Final sanding to grit 150.


PACKING AND WEIGHT

Wrapped in polythene and packed as noted below.

Floor board dimensions [mm]

Number of floorboards
per m²

Number of floorboards
per pack

m² per pack

Kgs per pack

Sq.ft. per pack

LBS per pack

14 x 129 x 516.6
9/16” x 5 5/64” x 20 11/32

15

20

1.33

13.6

14.35

30.0

22 x 129 x 516.6 
7/8” x 5 5/64” x 20 11/32

15

18

1.20

19.4

12.91

42.8

 

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