Coaster 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. All widths are NET
and all lengths allow for cutting to fit. Grouping lumber and purchasing
random-random 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 spruce (Sitka variety) and mahogany (dark red Philippine
type) are called out in the listing, lumber typical to the locale and of
similar types and weights may be substituted. 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 five plies when available.
Judicious cutting of plywood will result in scrap material, much of which may
be used in the cabin and interior structure. Because scrap material can be
used, and many builders elect to make modifications, material for the cabin and
interior is not listed. 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.
ABBREVIATIONS: Sitka spruce=SP, Douglas-fir=DF, Mahogany=Mahog, Plywood=PW,
Marine plywood=MAR
ITEM |
MATERIAL |
NO. PCs. |
SIZE |
LUMBER: |
Frame members and deck beams |
Mahog or oak
Mahog, fir or oak |
1-1/4" ("five-quarters" nominal
random-random stock) 65 bd ft with some widths to 8"
1" ("four quarters" nominal random-random stock) 30 bd ft with
some widths to 6" |
Keel |
Mahog or oak |
1 |
1-1/4" x 8" x 20' |
Bottom battens |
Mahog or oak |
2 |
1-1/4" x 3" x 17' |
Motor well battens
(Outboard version) |
Mahog or oak |
2 |
1-1/4" x 2" x 6' |
Motor stringers
(Inboard version) |
Mahog, DF or oak |
2 |
2" x 6" x 8' |
Chine logs |
Mahog or oak |
2 |
1-1/4" x 2" x 21' |
Sheer clamps |
Mahog or oak |
2 |
1-1/4" x 2" x 27' |
Side battens |
Mahog or oak |
2
2 |
1-1/4" x 2" x 15'
1-1/4" x 2" x 11' |
Ballast/skeg laminations |
Mahog, DF or oak |
190 lin. ft. 1" x 2", lengths to suit |
Ballast/skeg insert |
Mahog, DF or oak |
1 |
1" x 8" x 8' |
Carling |
Mahog or oak |
2 |
1" x 9" x 20' |
Cabin clamp |
Mahog or oak |
2 |
1" x 10" x 20' |
Deck battens, strongbacks,
hatch framework |
Mahog, DF or oak |
1
1 |
1" x 3" x 11'
1" x 2" x 10' |
PLYWOOD: |
Bottom planking |
DF PW ext or MAR AA or AB |
2
2
OR 5 total |
3/4" x 4' x 8'
3/4" x 4' x 12'
3/4" x 4' x 8' |
Side planking |
DF PW ext or MAR AA or AB |
4
2
OR 10 total |
1/2" x 4' x 14'
1/2" x 4' x 12'
1/2" x 4' x 8' |
Gussets & bulkheads
at Frame #5,
centerboard trunk sides |
DF PW Ext AB |
4 |
1/2" x 4' x 8' |
Stem & aft
ballast/skeg insert |
DF PW Ext AB |
1 |
3/4" x 4' x 8' |
Transom, breasthook
& forward ballast/skeg
insert |
DF PW Ext AB |
1 |
3/4" x 4' x 8' |
Decking |
DF PW Ext AB |
3 |
3/8" x 4' x 8' |
FASTENINGS:
- SCREWS: Flat head wood type, bronze or hot dipped
galvanized iron.
- 3/4" #8 Screws - 1 gross
- 1" #8 Screws - 2 gross
- 1-1/4" #8 Screws - 5 gross
- 1-1/2" #8 Screws - 3 gross
- 2" #10 Screws - 4 gross
- 3" #14 Screws - 6 dozen
- NAILS: Ring type, Bronze or Monel
- 1-1/4" #12- 4 pounds
- 1-1/2" #12 - 1 pound
GLUE: Epoxy - Approximately 2 gallons
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