B08_Attachment_10_-_WCLIB.pdf

ATTACHMENT 10

WEST COAST LUMBER INSPECTION

BUREAU GRADING RULES

BARGE FRAMING, PLANKING

AND DECKING

DOUGLAS FIR

173-b. “BARGE PLANKING and DECKING.”

4" and less in thickness is FOHC (side cut).

Characteristics and limiting provisions are:

Seasoning checks.

Medium pitch pockets.

Bright sapwood limited to approximately 1/4 the width and not to exceed 1/4 the thickness.

Knots, sound, tight, approximately:

Face Width Knot Size

3" 1" 4" 1" 6" 1-1/4" 8" 1-1/2"

10" 2" 12" and wider 2-1/2"

Knots extending into caulking seam are intergrown on one surface of the piece.

This section is part of Standard Grading Rules for West Coast Lumber No. 17 (2004 edition) published by West Coast lumber Inspection Bureau (www.wclib.org). Other sections and provisions of the grade rules may be applicable to the information and specifications provided here. Please refer to the table of contents for additional cross reference information.

Copyright 2008 WCLIB. All rights reserved.

SHIP DECKING

DOUGLAS FIR

175. Douglas fir Ship Decking is full sawn and free from knots on face and upper half of edges. Flat sizes are VG on broad face.

Grade descriptions are based on a piece 4" wide. The number of characteristics in larger or smaller pieces may vary in proportion to the size of the piece.

There are two grades of Ship Decking: “SHIP DECKING” and “C SHIP DECKING.”

In addition to the following specific provisions applicable to Ship Decking, the appropriate provisions in all other paragraphs in the rules apply.

175-a. “SHIP DECKING.”

Characteristics and limiting provisions are:

Slope of grain not more than 1 in 10.

One pitch pocket not to exceed 3" in length for each

12 lineal feet.

Bright sapwood on face side, 1/4 the width or equiva-lent and 1/2 the thickness on narrow face.

Reverse side and lower half of edges may have:

Sound, tight knots — 1" or less in diameter, and/or small pitch pockets.

175-b. “C SHIP DECKING.”

Characteristics and limiting provisions are:

Three small pitch pockets to each 12 lineal feet.

Bright sapwood approximately 1/3 width on either or both faces.

Reverse side and lower half of edges may have:

Sound, tight knots — 1-1/2" or less in diameter, and/or small to medium pitch pockets.

Up to 20% of the pieces 20' or longer in a shipment may contain one cutout which can be eliminated by wasting not more than 5% of the length of such piece with resulting pieces being 8' or longer.

This section is part of Standard Grading Rules for West Coast Lumber No. 17 (2004 edition) published by West Coast lumber Inspection Bureau (www.wclib.org). Other sections and provisions of the grade rules may be applicable to the information and specifications provided

MARGIN PLANK

DOUGLAS FIR

176. Douglas fir Margin Plank is full sawn and free from knots on wide face and corresponding half of thickness of narrow faces. Pieces are VG for at least 70% of width of face.

The grade description is based on a piece 8" wide and 12' long.

The number of characteristics in larger or smaller pieces may vary in proportion to the size of the piece.

There is only one grade of Margin Plank: “MARGIN

PLANK.”

In addition to the following specific provisions applicable to Margin Plank, the appropriate provisions in all other paragraphs in the rules apply.

176-a. “MARGIN PLANK.”

Characteristics and limiting provisions are:

Slope of grain not more than 1 in 10.

Two small pitch pockets.

Bright sapwood approximately 1/4 width of face and corresponding 1/2 the thickness of narrow face.

Reverse side and corresponding half of thickness of narrow faces may have:

Knots — 1" or less in diameter and/or medium pitch pockets.

SHIP PLANK

DOUGLAS FIR

Rough

177. Douglas fir Ship Plank is used for outboard planking, garboards, wales, clamps, rails and similar purposes. Pieces 4" and less in thickness are FOHC (side cut).

There is only one grade of Ship Plank: “SHIP PLANK.”

This section is part of Standard Grading Rules for West Coast Lumber No. 17 (2004 edition) published by West Coast lumber Inspection Bureau (www.wclib.org). Other sections and provisions of the grade rules may be applicable to the information and specifications provided

SHIP PLANK

DOUGLAS FIR

In addition to the following specific provisions applicable to Ship Plank, the appropriate provisions in all other paragraphs in the rules apply.

177-a. “SHIP PLANK.”

Characteristics and limiting provisions are:

Small pitch pockets not extending through the piece.

Small, sound, tight knots not extending into caulking seam edge.

Bright sapwood on face side, 1/4 width or its equivalent and 1/2 the thickness.

Characteristics are considered in connection with size and length of piece and its quality otherwise.

MAST, SPAR AND BOAT LUMBER

SITKA SPRUCE

178. Sitka spruce Mast, Spar and Boat Lumber, FG and/ or VG, is well manufactured and FOHC. The grade descrip-tion is based on a piece 8" wide and 12' long. Averages not less than five rings of annual growth to the inch on either one end or the other of the piece. Slope of grain not to exceed 1 in 10.

In addition to the following specific provisions applicable to Mast, Spar and Boat Lumber, the appropriate provisions in all other paragraphs in the rules apply.

178-a. “ONE TO TWO INCH.”

Characteristics and limiting provisions are:

Four small seasoning checks.

Three very small pitch pockets.

Bright sapwood 1/3 width or equivalent in flat grain, and 1/3 width on both faces in vertical grain or equivalent.

Short splits in not more than 5% of the pieces.

This section is part of Standard Grading Rules for West Coast Lumber No. 17 (2004 edition) published by West Coast lumber Inspection Bureau (www.wclib.org). Other sections and provisions of the grade rules may be applicable to the information and specifications provided

MAST, SPAR AND BOAT LUMBER

SITKA SPRUCE

And on reverse side:

Four small pitch pockets or equivalent slightly larger.

Two small knots or equivalent pin knots.

178-b. TWO AND ONE-FOURTH INCH AND

THICKER.

Characteristics and limiting provisions on wide face and corresponding half of narrow faces are the following or equivalent:

Six small seasoning checks in 2-1/4" thickness to six medium in 6" and thicker.

Three small pitch pockets in 2-1/4" thickness to four in 4" and thicker.

Bright sapwood 1/3 width or equivalent in flat grain and 1/3 width on both faces in vertical grain or equivalent.

Short splits in not more than 5% of pieces.

And on reverse side and corresponding half of narrow faces:

Three 1" knots in 2-1/4" thickness to three 2" knots in 12" thickness.

Four medium pitch pockets.

This section is part of Standard Grading Rules for West Coast Lumber No. 17 (2004 edition) published by West Coast lumber Inspection Bureau (www.wclib.org). Other sections and provisions of the grade rules may be applicable to the information and specifications provided