20.5 X 140 MM SOLID HARDWOOD PLANKS
PRODUCT INFORMATION

B 5.0

 

B 5.0

 


PRODUCT SPECIFICATION

Junckers 20.5 mm solid hardwood planks are factory finished and ready to install in accordance to Junckers Laying Instructions.
Each plank is made as one whole floor board and provided with a bevelled edge of approx. 0.5 mm.
Each plank is tongued and grooved on all four sides.


PRODUCT DATA / TOLERANCES

Nominal Plank Dimensions

Drying Method

Moisture Content

Precision Engineering Landing

Thickness: 20.5 mm (±0.2 mm)

Width: 140.0 mm (±0.2 mm)

Length: 3000* / 2700* / 2400 / 2100 / 1800 / 1500 / 1200 / 900 / 600 mm (±1.0 mm).
* Not Black Oak

The planks are kiln dried.

Oak and ash planks are supplied with an average moisture content of 8% (±2%)

Black Oak planks are supplied with an average moisture content of 9% (±2%)

Deviation: 0.2 mm (0.3 mm in localised areas).

The plank ends are right angled at ±0.3 mm.


PRODUCT RANGE

Product / Product name

Grades

Surfaces

Variants

Oak

Classic
Harmony
Variation

Ultra matt lacquered, Silk matt lacquered, Oil, Untreated, Textured,
Textured and/or coloured**

Ships decking*

Oak Nordic

Classic
Harmony
Variation

White pigmented and Ultra matt lacquered

Ships decking*

Oak Pearl

Harmony

Metallic-pigmentered and Ultra matt lacquered

Ships decking*

Black Oak

Harmony
Variation

Ultra matt lacquered, Oil, Untreated
Textured and/or coloured**

Ships decking*

Dark Ash

Classic

Ultra matt lacquered, Silk matt lacquered, Oil, Untreated

Ships decking*

Dark Ash Nordic

Classic

White pigmented and Ultra matt lacquered

Ships decking*

*All products are available as ships decking, see Fig. 1
**According to standard product range


Fig. 1

SHIPSDECKING

Specially designed foamed PVC strip with compact cells to absorb movements in hardwood floors.

The dimension of the strip is 3x8 mm. Installed it provides a 2 mm wide “Ships Decking Joint”, which varies during the year according to changes in the relative humidity.


TECHNICAL PROPERTIES

Resistance to Indentation

Slip Resistance,
(preliminary)

Fire Classification,
(DIN EN 13501-1)

Thermal Conduction
(Transmission coefficient)

Heat Resistance

All Oak- and Ash products:
Approx. 3.4 Hardness Brinell

Factory lacquered and oiled:
Approx. 0.4 (DIN 18032/2)

Cfl – S1

Approx. 0.17 W/mK

Approx. 0.12 m² K/W


FACTORY SURFACE TREATMENT

Lacquered
Oak and Dark 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.

Oak and Dark Ash Nordic:
Priming: Whitetoned stain.
Intermediate treatment: UV-light curing lacquer.
Top finish: Several coats of two-component polyurethane lacquer, ultra matt.
Total film thickness: Min. 40 µ.

Oak Pearl:
Priming: Water based transparent 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.

Each pack contains 6 floor boards / layers of floor boards.

1 layer can include mixed lengths, using standard floor board lengths.

Orders can include mixed lengths of packs.

Number of m² per pack according to package-length [mm]:
1500 / 1.26
1800 / 1.51
2100 / 1.76
2400 / 2.02
2700* / 2.27
3000* / 2.52

* Not Black Oak

Weight, kgs/m²:
All Ash products: 15.96
All Oak products: 16.02

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