Technical Specifications

Updated March, 2012
See Other Side for Face
SKU: 125-1683
ANSI/HPVA National Stan
dard
for #2 B
acks
*Typical Back
3/4” - 4’x8’ B2 Grade
Natural Birch
Rotary Cut, MDF Core
Hardwood Plywood
Core
*Appearance will vary.
Made in t
he USA
Grade Description 2
Sapwood/Heartwood Yes
Discoloration Yes
Mineral Streaks Yes
Sound Tight Burls Yes
Maximum Number of
Tight Knots
16
Maximum Combined
Number of Knotholes
and Repaired Knots
All repaired;
unlimited to 3/8
inch; No more
than 8 from 3/8
inch to 1/2 inch
Wormholes Filled (unfilled
wormholes shall
be a maximum of
1/16 inch in
diameter
Splits or Open Joints Six 3/16 inch x 12
inch repaired
Rough cut/ruptured
grain
5% of Panel
Bark Pockets ¼ inch wide
repaired
Laps Repaired