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:
Thickness: 20.5 mm (±0.2 mm)
Width: 140.0 mm (±0.5 mm)
Length:
3000* / 2700* / 2400 / 2100 / 1800 / 1500 / 1200 / 900 / 600 mm (±1.0 mm).
* Not Black Oak
Drying method:
The planks are kiln dried.
Average moisture content, MC:
Oak (all variants except Black Oak):
8% (±2%)
Black Oak: 9% (±2%)
NH3 treatment of Black Oak means that MC can´t be measured by using a conventional moisture meter but must be measured by the “dry weight method”.
Precision engineering landing:
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 |
Ultra matt lacquered, Silk matt lacquered, Oil, Untreated, Textured, |
Ships decking* |
|
Oak Nordic |
Classic |
White pigmented and Ultra matt lacquered |
Ships decking* |
|
Oak Pearl |
Harmony |
Metallic-pigmentered and Ultra matt lacquered |
Ships decking* |
|
Black Oak |
Harmony |
Ultra matt lacquered, Oil, Untreated |
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
All oak variants: Approx. 3.4 Hardness Brinell
Slip Resistance, DIN 18032/2 (preliminary):
Lacquered & oil: Approx. 0.4
Fire Classification, (DIN EN 13501-1):
Surface treated: Cfl – S1
Untreated surface: Dfl – S1
Thermal Conduction, (Transmission coefficient):
Approx. 0.17 W/mK
Heat Resistance: Approx. 0.12 m² K/W
|
Light reflection value (LRV) |
||
|
|
Ultramatt |
Silkmatt |
|
Oak |
27 |
26 |
FACTORY SURFACE TREATMENT
LACQUERED
Oak, ultra matt and silk matt:
Priming: Several coats of UV-light curing primer.
Top finish: Two-component polyurethane lacquer.
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.
Oak, other colours:
Priming: Coloured stain.
Intermediate treatment: UV-light curing lacquer.
Top finish: Several coats of 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 LDPE plastic and cardboard.
Each pack contains 6 floorboards / layers of floorboards. 1 layer may include mixed lengths, using standard floorboard lengths.
Orders may include mixed lengths of packs.
Number of m² per pack according to package-length [mm]:
1500 mm / 1.26 m²
1800 mm / 1.51 m²
2100 mm / 1.76 m²
2400 mm / 2.02 m²
2700 mm* / 2.27 m²
3000 mm* / 2.52 m²
* Not Black Oak
Weight, kgs/m²: All Oak products: 16.02 kgs