Technical Specifications

Updated March, 2012
See Other Side for Face
SKU: 125-2170
ANSI/HPVA National Stan
dard
for #1 B
acks
*Typical Back
Made in t
he USA
Core
*Appearance will vary.
3/4” - 4’x8’ A1 Grade
Walnut
Plain Sliced, ProCore
Hardwood Plywood
Grade Description 1
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
None – Repaired
pin knots and pin
knots allowed
Wormholes Filled (Unfilled
wormholes shall
be a maximum of
1/16 inch in
diameter)
Splits or Open Joints Six 1/8 inch x 12
inch
repaired
Rough cut/ruptured
grain
Two 8 inch
diameter areas
Bark Pockets 1/8 inch wide
repaired
Laps No