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Products > C Grade(Industrial Apperance)
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C Grade(Industrial Apperance)

Thickness: 4, 6.5, 9, 12, 15, 18, 21, 24, 27, 30

DEFECTS

DESCRIPTION

Pin knots (sound intergrown knots of no more 3 mm diameter)

Permitted

Sound lights and/or dark knots

Permitted

Unsound adhering knots

Permitted

Other knots and holes

Diameter up to 50 mm up to 10 pcs/m2

Abnormalities due to insects

Permitted

Open splits and checks

Up to an individual width up to 10 mm and of an individual length 400 mm, up to 5 per meter of panel width

Closed splits and checks

Permitted

Irregularities in the structure of the wood

Permitted

Stains from manufacturing (strips)

Permitted

Curly grain

Permitted

Discoloration and colored streaks

Permitted

Brown (Not rot)

Permitted

Inserts

Permitted

Open joints

Up to an individual width up to 7 mm

Dents and bumps

Permitted

Roughness

Permitted

Sanding through

Permitted

Unsanded areas

Up to 50% of the panel surface

Glue penetration

Permitted

Defects at the edges

Up to 10 mm from the edge

Delamination

Not permitted

A part of bark or bast remaining on face veneer area

Not permitted