Specification & Wood Grading Rules

Riva Range

 

General Details

Oak Type: European Oak (Quercus Robus)
Oak Source: Central European
Plywood Type: WBP Birch Plywood
Product Moisture Content: Between 8% – 11%
Length Specification: Minimum 80% between 1.8-2.8m, maximum 20% between 0.6 – 1.8m (unless otherwise stated)
Jointing system: Tongue & grooved all 4 edges
Edge profile: Bevelled 2 long edges only
Maximum Bow: Along the length – 30mm.  There can be some elements of tension between the 2 element of an engineered board which can create some bowing along the length this is perfectly normal.  The product is still suitable for installation if the bowing is within the allowed tolerance detailed within this section as correct fitment will ensure the boards sit flat when installed.

Thickness Options

20mm – Oak top layer 6mm (+/- 0.5mm) , Plywood 14mm (+/- 0.5mm)  – Overall thickness 20mm (+/- 0.3mm)
16mm – Oak top layer 4mm (+/- 0.5mm) , Plywood 12mm (+/- 0.5mm)  – Overall thickness 20mm (+/- 0.3mm)

Grade Options

Prime

Knot content: Only pin knots up to 10mm diameter allowed, limited to 3 knots per board.
Other traits: No bark pockets, splits or worm holes allowed.
Sap content: No edge sap allowed, limited core sap to 5% total volume.
Colour: Natural variation allowed, no dark heart wood allowed.

Nature

Knot content: Healthy knots up to 30mm diameter allowed, filled cracked knots up to 30mm diameter allowed, filled dead knots holes up to 20mm diameter allowed.  Total number of knots limited to 5 per board.
Other defects: No bark pockets, splits or worm holes allowed.
Sap content: No edge sap allowed, limited core sap to 5% total volume.
Colour: Natural variation allowed, no dark heart wood allowed.

Rustic

Knot content: Unlimited healthy knots allowed, filled cracked knots up to 60mm.  Filled dead knots up to 30mm.   
Other defects: Limited small bark pockets allowed, splits up to 3mm in width and length of which doesn’t exceed the width of the plank allowed, limited to 20% total volume, no worm holes allowed.
Sap content: Edge sap allowed limited to 30% of the width of the board.  Limited core sap to 15% of total volume.
Colour: Natural variation allowed, small amounts of dark heart wood allowed.

 

Trend Range

 

General Details

Oak Type: European Oak (Quercus Robus)
Oak Source: Central European
Plywood Type: Birch Plywood (Select Grade) – Eucalyptus plywood (Rustic Grade)
Product Moisture Content: Between 8% – 11%
Length Specification: 1900mm (Select Grade) – 2200mm (Rustic grade) – Max 1 nested plank per pack.
Jointing system: Tongue & grooved all 4 edges
Edge profile: Bevelled 2 long edges only
Maximum Bow: Along the length – 30mm.  There can be some elements of tension between the 2 element of an engineered board which can create some bowing along the length this is perfectly normal.  The product is still suitable for installation if the bowing is within the allowed tolerance detailed within this section as correct fitment will ensure the boards sit flat when installed.

Thickness Options

16mm – Oak top layer 4mm (+/- 0.5mm) , Plywood 12mm (+/- 0.5mm)  – Overall thickness 20mm (+/- 0.3mm)

Grade Options

Select

Knot content: Live knots up to 15mm diameter allowed, limited to 2-4 knots per board.   Dead knots up to 5mm allowed, limited to 1-2 knots per board.  Pin knots allowed.
Other traits: No bark pockets, splits or worm holes allowed.
Sap content: No edge sap allowed, limited core sap to 5% total volume.
Colour: Natural variation allowed, no dark heart wood allowed.

Rustic

Knot content: Unlimited healthy knots allowed, filled cracked knots allowed.  Filled dead knots up to 40mm.   Unlimited total knots allowed.
Other traits: Limited small bark pockets allowed, splits up to 5mm in width and length of which doesn’t exceed the width of the plank allowed, limited to 20% total volume, no worm holes allowed.
Sap content: Edge sap allowed limited to 30% of the width of the board.  Limited core sap to 15% of total volume.
Colour: Natural variation allowed, small amounts of dark heart wood allowed.

 

Space Range

 

General Details

Oak Type: European Oak (Quercus Robus)
Oak Source: Central European
Plywood Type: Eucalyptus plywood (Rustic Grade)
Product Moisture Content: Between 8% – 11%
Length Specification: 1900mm (Rustic grade) – Max 1 nested plank per pack.
Jointing system: Tongue & grooved all 4 edges
Edge profile: Bevelled 2 long edges only
Maximum Bow: Along the length – 30mm.  There can be some elements of tension between the 2 element of an engineered board which can create some bowing along the length this is perfectly normal.  The product is still suitable for installation if the bowing is within the allowed tolerance detailed within this section as correct fitment will ensure the boards sit flat when installed.

Thickness Options

16mm – Oak top layer 4mm (+/- 0.5mm) , Plywood 12mm (+/- 0.5mm)  – Overall thickness 20mm (+/- 0.3mm)

Grade Options

Rustic

Knot content: Unlimited healthy knots allowed, filled cracked knots allowed.  Filled dead knots up to 40mm.   Unlimited total knots allowed.
Other traits: Limited small bark pockets allowed, splits up to 5mm in width and length of which doesn’t exceed the width of the plank allowed, limited to 20% total volume, no worm holes allowed.
Sap content: Edge sap allowed limited to 30% of the width of the board.  Limited core sap to 15% of total volume.
Colour: Natural variation allowed, small amounts of dark heart wood allowed.

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