SOLID HARDWOOD PLANK FLOORS
PRODUCT INFORMATION

B 5.0

 

B 5.0

 


PRODUCT SPECIFICATION

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


PRODUCT DATA

Nominal plank dimensions:
Thickness x Width:

15 × 129 mm (⅝″ × 5″)
20.5 × 140 mm (¾″ × 5 ½″)
20.5 × 185 mm (¾″ × 7 ¼″)

Length 15 × 129 mm (5/8” × 5”)
2500 mm (8′ 2 ⁷⁄₁₆″) / 2400 mm (7′ 10 ½″) / 2200 mm (7′ 2 ⅝″) / 2100 mm (6′ 10 ¹¹⁄₁₆″) / 2000 mm (6′ 6 ¾″) / 1800 mm (5′ 10 ⅞″) / 1600 mm (5′ 3″) / 1500 mm (4′ 11 ¹⁄₁₆″) / 1200 mm (3′ 11 ¼″) / 800 mm (2′ 5 ⅝″) / 600 mm (1′ 11 ⅝″)

Length 20.5(3/4”) x 140/185(5.5/7.25”):
Nature: 600–2800 mm (1′ 11 ⅝″–9′ 2 ¼″) (100 mm (4″) interval)
All other grades: 3000 mm* (9′ 10 ⅛″) / 2700 mm* (8′ 10 ⁵⁄₁₆″) / 2400 mm (7′ 10 ½″) / 2100 mm (6′ 10 ¹¹⁄₁₆″) / 1800 mm (5′ 10 ⅞″) / 1500 mm (4′ 11 ¹⁄₁₆″) / 1200 mm (3′ 11 ¼″) / 900 mm (2′ 11 ⁷⁄₁₆″) / 600 mm (1′ 11 ⅝″) * Not Black Oak

Tolerances, thickness and width:
Thickness: ±0.2mm
Width 15 × 129 mm (5/8" x 5") : ±0.4 mm
Width 20.5 × 140/185 mm (¾″ × 5 ½″ or 7 ¼") : ±0.5 mm
Length: ±1.0mm
Landing deviations/lipping: 0.3mm
Plank end squareness: ±0.3mm
Drying method: Kiln dried.
Average moisture content, MC:
Oak: 8 % (±2 %).
Black Oak: 9 % (±2 %).

 

PRODUCT RANGE

Thickness/Width/Woodspecies

Grade

Surface

Product Variants

15 × 129 mm (5/8” × 5”) Oak 
20.5 × 140 mm (3/4” × 5  ½”) Oak 

Classic,
Harmony
Variation

 

Ultra mat lacquered
Silk matt lacquered 
Nordic
Oiled
Untreated


Coloures and texture1)
Shipsdecking2)
Whalebone3)

20.5 × 185 mm (3/4” × 7 ¼”) Oak

Harmony

20.5 × 140 mm (3/4” × 5  ½”) Oak Nature 

Nature

Ultra mat lacquered
Silk matt lacquered 
Nordic
Untreated

Colours and textured4)
Shipsdecking4)

15 × 129 mm (5/8” × 5”) Black Oak
20.5 × 140 mm (3/4” × 5 ½″) Black Oak

Harmony
Variation


Ultra mat lacquered
Oiled
Untreated


Texture1)
Shipsdecking2)
Whalebone3)

20.5 × 185 mm (3/4” × 7  ¼″) Black Oak

Harmony

1) See possibilities in the Product Selector at the web site.
2) See section "Ships decking".
3) See section "Whalebone/Herringbone Planks".
4) Minimum order quantity 250 m2  (ca. 2691 ft²)

 

SHIPSDECKING

Strip made of foamed PVC with closed cells to absorb natural movements in the hardwood floor, see fig. 1.
The strip measures 3x8 mm (1/8" x 5/16") and installed it provides a 2 mm (5/64″) wide joint, which varies over the year according to changes in the relative humidity.
We do not recommend shipsdecking for Glue Down System.

Fig. 1



WHALEBONE / HERRINGBONE PLANKS

Junckers plank floors are also available as patterned floors. This means that the floorboards are cut to fixed lengths and are delivered in a right- and left-handed version. This enables installation in different patterns, e.g. herringbone. Whalebone is delivered surface treated from the factory.

Nominal board dimensions:
Thickness x width x length

- 20.5 × 140.0 × 701 mm (¾″ × 5 ½″ × 27 ½“)
- 20.5 × 185.0 × 741 mm (¾″ × 7 ¼″ × 29 3/16”)
- 15.0 × 129.0 × 775 mm (⅝″ × 5″ × 30 ½”)

Tolerances: Length: +/- 0.2 mm. Thickness and width as described at page 1.

Product range (wood species and surface treatment): See options in the Product Selector at the web site.


TECHNICAL PROPERTIES

Resistance to Indentation (indicative values):
All variants: Approx. 3.4 Hardness Brinell

Slip Resistance (indicative values):
Oiled and lacquered: Approx. 0.4

Fire Classification, (EN 13501-1):
Surface treated: Cfl – S1 
Untreated:  Dfl – S1

Thermal Conduction: Approx. 0.17 W/mK

Heat Resistance:
20.5 mm (3/4") : Approx. 0.12 m² K/W
15 mm (5/8") : Approx. 0.09 m² K/W

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

 

Ultra matt

Silk matt

Oak
Oak Nordic
Black Oak

27
30
7

26
-
-

Substances on the candidate list (ECHA)
Junckers wooden floors do not contain SVHC substances (Substances of Very High Concern) listed on the candidate list amounting to more than 0.1 %. The candidate list registers particularly problematic substances in relation to human health and the environment. (http://echa.europa.eu/candidate-list-table).

 

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: several coats of UV.
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

15 x 129 mm (5/8” × 5”) :
Wrapped in LDPE plastic and cardboard.

Random length boards from 600–2500 mm (1′ 11 ⅝″–8′ 2 ⁷⁄₁₆″). Each pack contains 6 layers of planks.
A pack may contain up to 50% planks in lengths shorter than 1500 mm (4′ 11 ¹⁄₁₆″).
Delivery happens in a mix of pack lengths, as indicated below.

Pack length / Number of m² per pack:
1500 mm (4′ 11 ¹⁄₁₆″) / 1.16 m² (ca. 12.49 ft²)
1600 mm (5′ 3″) / 1.24 m² (ca. 13.35 ft²)
1800 mm (5′ 10 ⅞″) / 1.39 m² (ca. 14.96 ft²)
2000 mm (6′ 6 ¾″) / 1.55 m² (ca. 16.68 ft²)
2100 mm (6′ 10 ¹¹⁄₁₆″) / 1.63 m² (ca. 17.54 ft²)
2200 mm (7′ 2 ⅝″) / 1.70 m² (ca. 18.30 ft²)
2400 mm (7′ 10 ½″) / 1.86 m² (ca. 20.02 ft²)
2500 mm (8′ 2 ⁷⁄₁₆″) / 1.94 m² (ca. 20.88 ft²)

Weight: All variants 12.06 kg/m(ca. 2.47 lb/ft²)

20,5 x 140 mm (3/4” × 5 1/2”):
Wrapped in LDPE plastic and cardboard.

Random length boards from 600–3000 mm (23 ⅝″–118 ⅛″). Each pack contains 6 layers of planks. 1 layer may contain a mix of the standard lengths. Delivery happens in a mix of pack lengths, as indicated below.

Pack length / Number m² per pack:
1500 mm (4′ 11 ¹⁄₁₆″) / 1.26 m² (ca. 13.56 ft²)
1800 mm (5′ 10 ⅞″) / 1.51 m² (ca. 16.26 ft²)
2100 mm (6′ 10 ¹¹⁄₁₆″) / 1.76 m² (ca. 18.94 ft²)
2400 mm (7′ 10 ½″) / 2.02 m² (ca. 21.75 ft²)
2700 mm* (8′ 10 ⁵⁄₁₆″) / 2.27 m² (ca. 24.45 ft²)
3000 mm* (9′ 10 ⅛″) / 2.52 m² (ca. 27.11 ft²)
* Black Oak is not available in this length.

Weight: All variants 16.02 kg/m² (ca. 3.28 lb/ft²)

20,5 x 185 mm (3/4” × 7 1/4”):
Wrapped in LDPE plastic and cardboard.

Random length boards from 600–3000 mm (1′ 11 ⅝″–9′ 10 ⅛″). Each pack contains 6 layers of planks.
1 layer may contain a mix of the standard lengths.
Delivery happens in a mix of pack lengths, as indicated below.

Pack length / Number of m² per pack:
1500 mm (4′ 11 ¹⁄₁₆″) / 1.11 m² (ca. 11.95 ft²)
1800 mm (5′ 10 ⅞″) / 1.33 m² (ca. 14.32 ft²)
2100 mm (6′ 10 ¹¹⁄₁₆″) / 1.55 m² (ca. 16.68 ft²)
2400 mm (7′ 10 ½″) / 1.78 m² (ca. 19.16 ft²)
2700 mm* (8′ 10 ⁵⁄₁₆″) / 2.00 m² (ca. 21.53 ft²)
3000 mm* (9′ 10 ⅛″) / 2.22 m² (ca. 23.89 ft²)
* Black Oak is not available in this length.

Weight: All variants: 16.02 kg/m2 (ca. 3.28 lb/ft²)

Whalebone, 15 & 20.5 mm (5/8” & 3/4”)
Wrapped in LDPE plastic.

20.5 × 140.0 × 701 mm (¾″ × 5 ½″ × 27 ½″)
Pack size: 12 boards (1.18 m² / 12.70 ft²)
Weight per pack: 17.3 kg (14.7 kg/m² / 32.4 lb/m²)

20.5 × 185.0 × 741 mm (¾″ × 7 ¼″ × 29 ³⁄₁₆″)
Pack size: 8 boards (1.10 m² / 11.84 ft²)
Weight per pack: 16.2 kg (ca. 35.7 lb)
(14.7 kg/m² / 32.4 lb/m²)

15.0 × 129.0 × 775 mm (⅝″ × 5″ × 30 ½″)
Pack size: 16 boards (1.60 m²)
Weight per pack: 19.2 kg (ca. 42.3 lb) (12.0 kg/m² (ca. 2.46 lb/ft²))

20.5 x 140 mm (3/4" x 5 ½") Oak Nature:
Wrapped in LDPE plastic and cardboard.

Random length boards from 600-2800 mm (23 ⁵/₈" - 110 1/4"). Each pack contains 4 layers of planks.
1 layer may contain a mix of the standard lengths.

Delivery happens in a mix of pack lengths, as indicated below.

20.5 x 140 mm (3/4" x 5 ½") Oak Nature
Pack length / Number m² per pack:

1500 mm (4′ 11 ¹⁄₁₆″) / 0.84 m² (9.04 ft²)
1600 mm (5′ 3″) / 0.90 m² (9.69 ft²)
1700 mm (5′ 6 ¹⁵⁄₁₆″) / 0.95 m² (10.23 ft²)
1800 mm (5′ 10 ⅞″) / 1.01 m² (10.87 ft²)
1900 mm (6′ 2 ¹³⁄₁₆″) / 1.06 m² (11.41 ft²)
2000 mm (6′ 6 ¾″) / 1.12 m² (12.06 ft²)
2100 mm (6′ 10 ¹¹⁄₁₆″) / 1.18 m² (12.70 ft²)
2200 mm (7′ 2 ⅝″) / 1.23 m² (13.24 ft²)
2300 mm (7′ 6 ⁹⁄₁₆″) / 1.29 m² (13.88 ft²)
2400 mm (7′ 10 ½″) / 1.34 m² (14.43 ft²)
2500 mm (8′ 2 ⁷⁄₁₆″) / 1.40 m² (15.07 ft²)
2600 mm (8′ 6 ⅜″) / 1.46 m² (15.72 ft²)
2700 mm (8′ 10 ⁵⁄₁₆″) / 1.51 m² (16.26 ft²)
2800 mm (9′ 2 ¼″) / 1.57 m² (16.90 ft²)

Weight: All variants 16.02 kg/m² (ca. 35.7 lb/m2)

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