Copyright 2017 - Woods Designs, Foss Quay, Millbrook, Torpoint, Cornwall, PL10 1EN, UK
  • home built Flica 37

  • plywood Romany 34

  • lightweight 14ft Zeta mainhull

  • Strike 15 trimaran at speed

  • 28ft Skoota in British Columbia

  • 10ft 2 sheet ply Duo dinghy

  • 24ft Strider sailing fast

  • 36ft Mirage open deck catamaran

Flat panel GRP hulls/ply decks

Plywood-

 

Bulkheads 9mm ply 9 sheets
Inner keel 9mm ply 1 sheet
Wing side 6mm ply 2 sheets

Wing bottom 6mm ply 2 sheets
Beam boxes 12mm ply 1 sheet

Interior 4mm ply 4 sheets
Interior 6mm ply 2 sheets

Platform 9mm ply 2 sheets
Deck lockers 6mm ply 1 sheet

Decking 6mm ply 14 sheets
Beams 9mm ply 4 sheets

Daggerboard box 9mm ply 1 sheet
Daggerboard/rudders 12mm ply 1 sheet

Totals

 

4mm ply 4 sheets
6mm ply 21 sheets
9mm Ply 17 sheets

12mm ply 2 sheets Note: All ply to be best quality gaboon (okume) marine plywood

Glass/resin

600/300 Combimat 280kg, 450 Chopped strand mat 30kg, 300 csm 20kg

600 woven roving 3kg, polyester resin 475kg

gelcoat resin 35kg Note: Combimat is a combination material consisting of 600WR and 300csm

Timber

1"x1" 20m
2"xl" 120m
1 1/2"x3/4" 45m
1 1/2"x1 1/2" 10m
2"X5/8" 9m
2"xl" hardwood (gunwale) 18m
2"x2" 4700mm 4 lengths
2"xl 1/2" 4700mm 8 lengths
Note: All timber to be best quality sitka spruce,douglas fir or similar. 
Sizes given are nominal, planed all round (P.A.R.)

Flat Panel Ply

 

 Bulkheads	9mm ply	9 sheets
 
 Inner keel	12mm ply	l sheet
 
 Wing side	6mm ply	2 sheets

 Wing bottom	6mm ply	2 sheets

 Planking	8mm ply	28 sheets (use scrap for bunks,soles,washboards etc)

 Beamboxes	12mm ply	l sheet

 Interior	4mm ply	4 sheets

 Interior	6mm ply	2 sheets

 Platform	9mm ply	2 sheets

 Decklockers	6mm ply	l sheet

 Decking	6mm ply	14 sheets (use scrap for hatches etc)

 Beams	9mm ply	4 sheets

 Daggerboard box     9mm ply     l sheet

 Daggerboard 12mm ply      l sheet

 

Totals

 

4mmply	4 sheets
 
6mmply	21sheets
 
8mmply	28sheets
 
9mmply	16sheets
 
12mm ply	3sheets	Note: all ply to be best quality gaboon (okume) marine ply

 

Timber

 

 1"xl"	20m
 
 2"xl"	160m

 3"xl"	80m

 1 1/2"x3/4"	180M

 2"x2"	4700mm  4	lengths

 2"xl 1/2"	4700mm 8	lengths

 2"x1 1/2"      10m

 5/8" planks total width 200max 40m (inner keel)

 3/4" planks total width 180max 40m (outer keel) laminate from narrower planks

Note: All timber to be best quality sitka spruce,douglas fir or similar.  
Sizes given are nominal,planed all round (P.A.R.)

Glue approx 75kg epoxy

Nails approx 5kg 3/4" countersunk head barbed ring nails or use st steel screws

Screws approx 1000 1" no 8, 1000  3/4" no 6 c.s. head st steel

Cloth for sheathing approx 25kg 300g (must be comparable with epoxy)