Yukon-PW Bill of Materials

The following list of materials is intended to be a general guide only. Before ordering any materials, the text and plans should be checked for possible options. All lumber listed as 1" stock is to be standard "lumberyard four-quarter" material which when finished may vary to somewhat less or slightly more than 3/4" in thickness, unless specified as NET. All widths are NET and all lengths allow for cutting to fit. Grouping lumber and purchasing random-random (r-r) material to resaw to the required size will result in considerable savings. All lumber used should be first grade free from shakes and knots. Although oak (white oak), Douglas-fir, and mahogany (African, Honduras, or Phillipine-dark red varieties) are called out in the listing, lumber typical to the locale and of similar types and weights may be substituted. Long-leaf yellow pine is a good substitute for oak. All plywood (PW) is to be marine (MAR) or exterior (EXT) grade. The marine-type is preferable as the inner cores are solid and thus the panel has more structural integrity. Douglas-fir (DF) is satisfactory with the quality of the exposed faces of the veneer being designated by the letters "A" or "B". The "AA" grade panels are always preferable, however, "AB" grade is acceptable. All plywood should be a minimum of three plies. All fastenings should be bronze or hot dipped galvanized ferrous metal. Brass fastenings are not advised nor are the electroplated screws commonly sold in hardware stores. All screws are to be of the flat head type intended for wood. All nails are of the ring-type nail common to boat construction. Unless otherwise specified, all wood-to-wood joints are to be glued with a waterproof or highly water resistant glue such as plastic resin, resorcinol, epoxy, or other equivalent type used per the manufacturer's instructions regarding temperature, clamping requirements, curing time, and mixing method.
CHECK ALL SIZES TO THE WORK PRIOR TO CUTTING. Abbreviations used are: Mahog = mahogany; DF = Douglas-fir; PW=plywood; Ext=exterior; MAR=marine.

ITEM MATERIAL NO.
PCS. 		SIZE
LUMBER:
Keel (deadwood)* Mahog, Oak or DF 1
1
1
1
1 		6" x 6" x 14'
4" x 8" x 15'
6" x 8" x 18'
6" x 8" x 1'-6'
6" x 8" x 6'
Keel filler strake Mahog, Oak or DF 1 2" x 6" x 28'
Keelson Mahog, Oak or DF 1
OR 3 		4" x 8" x 28'
1-1/4" x 8" x 28'
Stem & stem
knee (**) 		Mahog, Oak or DF 1
1 		6" x 10" x 8'
6" x 12" x 3'-6"
Transom knee (***) Mahog, Oak or DF 1 6" x 14" x 3'
Frame members
(bottom, side & deck
beam members) 		Mahog, Oak or DF 2
4
4
2
2 		2" x 12" x 18'
2" x 6" x 20'
2" x 6" x 16'
2" x 6" x 18'
2" x 3" x 12'
Floor timbers Mahog, Oak or DF 1
1 		3" x 10" x 16'
3" x 12" x 16'
Chine logs Mahog, Oak or DF 2 2" x 4" x 36'
Bottom battens Mahog, Oak or DF 6 2" x 4" x 32'
Spray guard Mahog, Oak or DF 2 1-1/4" x 3" x 34'
Aft cockpit sole
clamp 		Mahog, Oak or DF 2 2" x 3" x 36'
Sheer clamp Mahog, Oak or DF 2 2" x 4" x 38'
Deckhouse carling Mahog, Oak or DF 2 3" x 6" x 16'
Carling Mahog, Oak or DF 2 3" x 4" x 13'
Engine stringers Mahog, Oak or DF 2 4" x 8" x 16'
Transom stringer
blocking 		Mahog, Oak or DF 2 3" x 3" x 3'
Sheer rub rail Mahog, Oak or DF 4 2" x 4" x 38'
Bulwark cleats Mahog, Oak or DF 2 2" x 4" x 18'
Bulwark clamp Mahog, Oak or DF 2 2" x 2" x 20'
(*) Keel may be built up progressively using laminations of 1" to 2" thick members laid flat of widths to suit in lieu of above.
(**) Stem may be built up progressively using laminations of 1" thick members laid to the stem contour of widths to suit in lieu of above.
(***) Transom knee may be built up with thinner and smaller solid wood memers scabbed on each side with 3/4" plywood laminations in lieu of above.
PLYWOOD:
Bottom planking DF MAR AA
or AB (+) 		30 1/2" x 4' x 8'
Side planking DF MAR AA
or AB (+) 		6
4 		3/4" x 4' x 12'
3/4" x 4' x 14'
Optional side planking may be in two
laminations of 3/8" plywood laid double
diagonally as with the bottom planking
so that 8' lengths may be used. 		30 3/8" x 4' x 8'
Bulwark DF MAR AA
or AB (+) 		1 1/2" x 4' x 10'(++)
Transom DF MAR or
Ext AA or AB 		2 3/4" x 4' x 12'(++)
Floor timbers
/gussets 		DF Ext AA or AB 3 3/4" x 4' x 8'
Chain locker
bulkhead 		DF Ext AA or AB 1 3/4" x 4' x 8'
Main cabin
bulkhead 		DF Ext AA or AB 1 3/4" x 4' x 12'(++)
(+) Some builders may wish to use AA or AB Exterior PW for the planking. This is sometimes satisfactory, however, the material must be free of major voids, used where bending is minimal, and where patches or plugged areas will not be exposed to moisture. In any case, the Marine grade is superior.
(++) 8' panels may be utilized with proper overlapping in the laminations or with butt joining methods depending on the member, using extra panels as required.

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