SUMMARY CHART OF HARDWOOD GRADING STANDARDS RULES NHLAREGULAR RULES WITH THE EXTRA

CUTTING

GRADES DIMENSIONSOF PIECES

MINIMUM FSM

NUMBER OF CUTTINGS

(FORMULAS)

REQUIRED YIELD (%)

FSM X BASIC YIELD

DIMENSIONSOF CUTTINGS

(MINIMUM)

FSMFROM:

TO:

REQUIRED YIELD (%)

FSM X BASIC YIELD

NUMBER OF CUTTINGS

(MAXIMUM)

FAS 6" and up8' to 16' 4 and up SM

4 83 1/3 % SM X 103" X 7'4" X 5'

6 to 15 91 2/3 % SM X 11 4

97% RULE6" and up

FAS: 8' to 16'SELECT: 6' to 16'

6 to 12 2 97 % SM X 11.64

Both cuttings should be clear full width of the board but any length under 5'. It's impossible to do 97% rule when you have a small SM.

(Required units for 6 SM: 70 un., 7 SM: 81.5 un., 8 SM: 93 un. )

FAS 1 FACE6" and up

8' to 16'

FAS FACE: Same rules and limitations that FAS grade but you grade on the better face. REVERSE SIDE: Never below 1 Common grade. Same limitations than Select 6" et +.

The FAS 1 FACE is a big Select. 6"x 8' instead of 4"x 6'.

SELECT4" and up

6' to 16'

2 and 3 1 91 2/3 % SM X 11Any sizes

(just number of units required)

Note: Pieces of 2 & 3 SM with a small SM that have 22 or 33 units or less (3 3/4" x 6', 4" x 8' et 5 1/4" x 6') should be 100 % clear on the grading face.

4 and up Same of FAS Same of FAS Same of FAS

1 COMMON

3" and up

4' to 16'

1 1 100% clearboth faces or 12

3" x 3'4" x 2'

3 to 10 75 % SM X 9 52 1 75 % SM X 9

3 and up SM + 13 66 2/3 % SM X 8

2A COMMON1 1 66 2/3 % SM X 8

3" x 2' 2 to 7 66 2/3 % SM X 8 72 and up SM2 50 % SM X 6

2B Common Same of 2A Common except that cuttings should be sound and not clear on the grading face. Grade both faces sound reverse sound.

3A COMMON1 1 50 % SM X 6 3" x 2' no limit

2 and up no limit 33 1/3 % SM X 43A COMMON

(Special)Are also 3A Common pieces which grade not below 2A Common on the better face with the reverse side of the cuttings sound.

(In fact, it's a 3B Common on the poor face but you can find 1 or 2 Common on the good face with the back of each cuttings sound).

3B COMMON 1 and up no limit 25 % SOUND SM X 3 1 1/2" wide

Surf.: 36 sq. inch no limit