22 MM 2-STRIP SOLID FLOORS
PRODUCT INFORMATION

B 2.0

PRODUCT SPECIFICATION

Junckers 22 mm 2-strip solid hardwood floors are factory finished and ready to install in accordance to Junckers Laying Instructions.

Each floor board is assembled from two rows of staves by a glued double dovetail construction.

Each floor board is tongued and grooved on all four sides.

PRODUCT DATA / TOLERANCES

Nominal Board Dimensions
Thickness: 21.8 mm (±0.2 mm)
Width: 129.0 mm (±0.2 mm)

Length Commercial/Residential floors:
3700 / 1830 / 900 mm (±1.0 mm)
Length Sports floors:
3700 mm (±1.0 mm)

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

Moisture Content
Beech, Maple, 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 localised areas).
Board ends are right angled at ±0.3 mm.

PRODUCT RANGE, COMMERCIAL / RESIDENTIAL

Product	Grade	Surface	Product variants
Beech Beech SylvaKet Beech SylvaRed Ash Oak	Classic Harmony Variation	Ultra matt lacquered Silk matt lacquered Clear oil Untreated	Ships decking* Bevel (Oak & Ash) Colours Texture
Ash Nordic Beech Nordic Oak Nordic	Classic Harmony Variation	White pigmented and ultra matt lacquered	Ships decking* Texture**
Black Oak	Harmony Variation	Ultra matt lacquered Clear oil Untreated	Ships decking* Texture**
Maple	Classic Variation	Ultra matt lacquered Silk matt lacqured Clear oil Untreated	Ships decking*
Oak Pearl	Harmony	Metallic-pigmented and ultra matt lacquered	Ships decking*

*See Fig. 1
**See possibilities in current Product selector.

Fig. 1

SHIPSDECKING

Strip made of foamed PVC with closed cells to absorb natural movements in the hardwood floor.

The strip measures 3x8 mm and installed it provides a 2 mm wide joint, which varies over the year according to changes in the relative humidity.

PRODUCT RANGE, SPORT

Product	Grade	Surface
Beech SylvaSport Beech SylvaKet Ash	Champion Premium Club	Ultra matt lacquered Silk matt lacquered Untreated
Maple	Champion Club	Ultra matt lacquered Silk matt lacquered Untreated
Sylva Squash Beech Maple Ash	Champion	Silk matt lacquered Untreated
Sylva Dance, Beech	Champion	Silk matt lacquered

TECHNICAL PROPERTIES

Resistance to Indentation
Oak (all variants): Approx. 3.4 Hardness Brinell
Ash (all variants): Approx. 3.4 Hardness Brinell
Maple (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) and Approx. 85 (EN 14904)
Factory oiled: Approx. 0.4 (DIN 18032/2)

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

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

Heat Resistance: Approx. 0.13 m² K/W

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

Electrostatic Charging (kV), Beech:
Factory lacquered:
25% RH = 3.5
50% RH = 2.0
65% RH = 1.0

Factory oiled:
25% RH = 1.0

Oiled Beech is suitable for use in rooms with computers. (DIN 54345/1-prEN 1815)

Substances of very high Concern
The products do not contain substances from the REACH Candidate List, ”Candidate List of Substances of Very High Concern for Authorization, whose content exceeds 0.1 weight percent.

FACTORY SURFACE TREATMENT

Lacquered
Beech, Beech SylvaKet, Beech SylvaRed, Beech SylvaSport, Oak, Ash & Maple:
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.

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.

Squash
Untreated: Final sanding to grit 40.
Lacquered: Final sanding to grit 40 + 1 coat of a silk matt two-component polyurethane lacquer.

Sylva Dance
Final sanding to grit 40 + 2 coats of a silk matt two-component polyurethane lacquer.

PACKING AND WEIGHT

Wrapped in polythene.

Pack size / Length / m²
8 floor boards / 3700 mm / 3.82 m²
4 floor boards / 3700 mm / 1.91 m²
8 floor boards / 1830 mm / 1.89 m²

One layer in packs of 1830 mm length may consist of two floor boards of 900 mm.

Weight kg/m²
Beech (all variants): 16.35 kg
Oak (all variants): 15.50 kg
Ash (all variants): 14.50 kg
Maple: 14.5 kg