Ensenada 25
Bill of Materials
MATERIAL LISTING: Do NOT purchase materials from this listing
without first reading the instructions and checking the plans for
options. This listing includes materials for the basic hull only as built
from sheet plywood, and not the building form or temporary framing
members. Check scraps after building the hull before purchasing
additional materials for the balance of the project.
PLYWOOD: : All plywood must be either Exterior or Marine grade.
Interior plywood should not be used. The best grade that one can afford
should be used, especially for planking. Although some builders manage to
get by with Exterior grades with face grades below "A" or
"B" quality, these are questionable in strength and durability.
Douglas fir plywood is acceptable in all cases as are the imported
hardwood types commonly used in boatbuilding. Check the plans for options
in all cases in lieu of the listing. Do NOT downgrade your quality of
plywood even though the boat is covered with fiberglass or being built
with epoxy glues and/or encapsulation systems.
LUMBER: Do NOT purchase any lumber until you read this section. Do
NOT purchase any NET sized materials unless the lumber size is
specifically listed as "NET". All lumber thickness should be
purchased as standard lumberyard stock finished as full as possible
except for lumber specifically noted as "NET". For example,
1" stock usually finishes out to 3/4" thickness and this is
what is purchased EXCEPT WHEN NOTED AS 1" NET. This is intended to
save the builder money by minimizing custom milling costs. All widths,
however, are noted as net. When possible, group lumber together to resaw
yourself to the required sizes. All lumber should be checked to the plans
before purchase and checked against the instructions for options. Douglas
fir (preferably dense clear vertical grain) and Sitka spruce are
specified because they are light and strong. Dark red Philippine mahogany
is also suitable in some cases. Other woods may be used if of comparable
characteristics. However, heavy woods such as oak should not be used if
performance is important. Woods of good strength and lightweight
qualities not ordinarily used on boats may be suitable if an epoxy
encapsulation system (highly recommended in any case) is used in order to
prevent damage or weakening by water and/or rot.
LUMBER: DF = Douglas-fir; SS = Sitka spruce; PM = Philippine-mahogany.
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LUMBER:
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MEMBER
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MATERIAL
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NO. RQD
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LENGTH
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Transom &
Bulkhead Framing
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DF, SS
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5
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1" x 6" x 12'0"
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Stem
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DF
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3
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2" x 4" (nominal) x 8'
Rip each into 3 equal
thickness layers approx.
9/16" thick x 3"
net wide.
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Keel
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PM, DF
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2
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1" x 10" x 20'0"
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Chine logs
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DF, SS
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2
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1-1/4" x 2-1/2" x 25'0"
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Battens
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DF, SS
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2 @ 21'0"
2 @ 22'0"
2 @ 23'0"
6 @ 26'0"
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1" X 1-1/2"
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Sheer clamps
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DF, SS
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4
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1" x 2-1/2" x 27'0"
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CB trunk fwd
upright
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DF
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2
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2" net x 8" x 5'0"
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CB trunk aft
spacer & upright
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DF
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1
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2" x 4" net x 6'0"
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CB trunk bed logs
& pin blocks
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DF
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2
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1" x 6" x 9'0"
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CB trunk cap cleats
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DF
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2
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1" x 4" x 7'0"
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CB trunk cap
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PM
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1
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1-1/4" x 6" x 7'0"
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PLYWOOD: Includes decking/cockpit but not cabin or interior.
"ABX" refers to Exterior plywood with AB minimum face
veneers. "ABMAR" refers to Marine plywood with AB minimum
face veneers. Plywood denominated by millimeter thickness can be
substituted if of comparable thickness.
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MEMBERS
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TYPE
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NO.
SHEETS
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SIZE
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Transom, gussets
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ABX
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1
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3/4" x 4' x 8'
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Trunk sides, keel lamination
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ABX
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3
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1/4" x 4' x 8'
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Bulkheads, etc
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ABX
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4
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3/8" x 4' x 8'
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Planking
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ABMAR
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14
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1/4" x 4' x 8'
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Decking
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ABX
ABX
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4
1
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3/8" x 4' x 10' (*)
3/8" x 4' x 8'
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Cockpit
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ABX
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2
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3/8" x 4' x 8'
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(*) See layouts. Full length panels can be made from shorter butt- or
scarf-joined panels to the noted length overall.
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FASTENINGS:
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Screws: Flathead wood type, bronze or hot dipped galvanized. Totals
are approximate.
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1" #8 - 1300
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1-1/4" #8 - 200
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1-1/2" #8 - 300
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2" #10 - 200
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3" #14 - 12
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Nails: Ring type boat nails, bronze or Monel
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1" #12 = 1 pound
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Bolts: See Fastening Schedule & plans for requirements
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Adhesives: Epoxy adhesives are advised throughout the
construction. These may be an epoxy adhesive or epoxy resin. Epoxy
resins should be used with thickeners (silica or equal) per the
instructions with the resin and/or thickening agent. Due to the noted
options, the amount required is difficult to estimate. A gallon
container of epoxy should be more than enough.
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