Technical Specifications

Updated July, 2012
See Other Side for Face
ANSI/HPVA National Stan
dard
for #1 B
acks
*Typical Back
Made in t
he USA
Core
*Appearance will vary.
Grade Descripon
1
Sapwood/Heartwood
Yes
Discoloraon
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
1/4”- 4’x8’ A1 Grade
Hickory
Plain Sliced, MDF Core
Hardwood Plywood
SKU: 125-3000