B
High Furniture Grade - Marketing B


Categories of defects
Permissible amount of defects
Pin knots light
Permitted with total quantity not more than 3 per sq. m
Sound intergrown knots
Permitted up to an individual maximum diameter of 15 mm
with total quantity not more than 5 per sq. m
Other knots
Permitted up to an individual maximum diameter of 6 mm
with total quantity not more than 3 per sq. m
Knots and knot holes repairement
Not permitted
Closed checks
Permitted for an individual maximum length up to 200 mm
and in number up to 2 per meter of a panel width
Open checks
Not permitted
Irregularities in the structure of the wood
Permitted
Hearth and discoloration
No more than 5% of the surface
Defects at the edges due to sanding or sawing
Permitted up to 2 mm from the edge
Glue penetration
Not permitted
Sanding through
Not permitted
Veneer overlapping in inner plies
Not permitted

Brochure Contents
Preview
Introduction to Grading
Plywood Technical Data
B
BB
CP
C
Volume of a Pack of Plywood
Thickness Conversion Table


| Home | Products/Markets | About Us | Market Info | Contact Us | Jobs | Locations | Purchasing |

Concannon Lumber
2950 SE Stark St, Suite 230
Portland, OR 97214-3082
Tel:  503-231-8881
Fax:  503-236-5614
E-mail: