SUMMARY OF HARDWOOD FACE GRADE CHARACTERISTICS
ROTARY CUT

Red Oak and White Oak (See pictures)

Cut

Rotary-Cut

Grade Description

AA

A

B

C

Colour and Matching

Red Oak

White Oak

Red Oak

White Oak

Red Oak

White Oak

Red Oak

White Oak

Sapwood

No

No

5%a

Yesa

20%

Yes

Yes

Yes

Heartwood

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Colour Streaks or Spots

Yes

Yes

Yes

Yes

Colour Variation

Slight

Slight

Yes

Yes

Sharp Colour Contrasts at Joints

No

No

No

No

Type of Matching

Sequence Matched

Book Matched

Slip Matched

Pleasing Matched

No

Yes

Specify

---

No

Specify

Specify

Specify

No

No

Specify

---

No

No

No

---

Nominal Minimum Width of Components
in Face

6"

5"

4" If book or slip

No limit

Natural Characteristics        
Small Inconspicuous Burls & Pin

Knots - Combined Avg. No.

1 per 4 sq. ft.

 

6 per 4'x8' panel

1 per 2 2/3 sq. ft.

 

8 per 4'x8' panel

1 per 1 1/3 sq. ft.

 

24 per 4'x8' panel

No limit

Burls - Max Size

1/8"

1/4"

3/8"

No limit

Knots Max. Size

Dark Part

Total

 

1/8"

1/4"

1/8"

1/4"

 
Scattered Sound and Repaired

Knots - Combined Avg. No.

Max. Size - Sound

Max. Size - Repaired

Avg. No. - Repaired

No

No

1 per 8 sq ft.

4 per 4'x8' panel

3/8"

1/8"

1 per 8 sq. ft.

1 per 4 sq. ft.

8 per 4'x8' panel

3/8"

3/8"

1 per 8 sq. ft.

Mineral Streaks

No

Slight, Blending

Few to 8"

Yes

Bark Pockets

No

No

Few to 1/8"x1"

Few to 1/4"x2"

Worm Tracks

No

No

Slight

Few

Vine Marks

No

Slight

Yes

Yes

Cross Bars

Slight

Slight

Yes

Yes

Manufacturing Characteristics
Rough Cut

No

No

Slight

Slight

Blended Repaired Tapering

Hairline Splits

Two 1/32"x3"

on panel ends only

Two 1/16"x6"

Four 1/8"x8"

Four 3/16"x8"

Repairs

Very small, inconspic.

Small, inconspicuous

Inconspicuous

Yes

Special Characteristics

Ray Fleck

No

Slight, Blending

Slight, Blending

Yes

DEFINITIONS

Unfilled worm holes, open splits, open joints, open bark pockets, shake or doze not permitted in above grades. One inch = 25.4 mm; one sq. ft. = 0.0929 square meters.

Note: a Sap allowed unless otherwise specified.

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