SOLID HARDWOOD FLOORING

PRODUCT INFORMATION
Twin Herringbone

B 11.0

 

B 11.0

 


PRODUCT DESCRIPTION

Junckers 14 and 22 mm 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. 2.


PRODUCT DATA / TOLERANCES

Nominal Board Dimensions
Thickness: 13.8 and 21.8 mm (±0.2 mm)
Width: 129.0 mm (±0.2 mm)
Length: 516.6 mm (±0.2 mm)

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

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

Black Oak: Average moisture content 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
Beech Sylvared
Ash
Oak

 

Harmony

Ultra matt lacquered
Silk matt lacquered
Clear oil
Untreated

Colours*

Ash Nordi
Beech Nordic
Oak Nordic

Harmony

White pigmented and
ultra matt lacquered

 

Black Oak

Harmony

Clear Oil
Untreated 

 

* All standard colours except Pearl are available on request.


Fig. 2

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, (preliminary):
Factory lacquered: Approx. 0.4 (DIN 18032/2) + Approx. 85 (EN 14904) Factory oiled: Approx. 0.4 (DIN 18032/2)

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 (Reflectance for diffuse light):
Beech Classic, lacquered: 48% Beech SylvaKet Classic, lacquered: 22%


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.

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 floor boards per m²

Number of floor boards per pack

m² per pack

Kgs per pack

14 x 129 x 516.6

15

20

1.33

13.6

22 x 129 x 516.6 

15

18

1.20

19.4

 

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