Core Sound 21

$650.00$2,300.00

The CS-21 was inspired by the iconic Harkers Island style work boats. This center console design features the famous Carolina flare and a modified V bottom shape for a comfortable and stable ride while maintaining a spacious interior.

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SKU: CS-21 Category:

Description

The CS-21 was inspired by the iconic Harkers Island style work boats. This center console design features the famous Carolina flare and a modified V bottom shape for a comfortable and stable ride while maintaining a spacious interior. The hull is built using the cold mold method with epoxy and marine plywood. This boat is designed for use inshore and near shore.

The construction method used for this hull is cold molding and is recommended for those with some boat building and/or wood working experience. The design is available as a pre-cut jig or full size patterns, both options include detailed assembly drawings. The jig is made with 1/2″ plywood and most of the jig becomes the permanent structure of the hull. This includes the stringers, transverse frames, front bulkhead and transom. The temporary structure provides support during construction and is easily removed after flipping the hull.

Specs:

  • 21.5′ LOA
  • 8′ beam
  • 8.5″ draft @ 2000 lbs
  • 150hp max
  • Cruise 30-35mph

Materials:

  • Jig: 5 sheets marine grade plywood 1/2” x 4′ x 8′ and 2 sheets standard plywood 1/2” x 4′ x 8′

  • Bottom aft: 2 sheets of marine grade plywood 3/4” x 4′ x 8′

  • Bottom forward: 5-6 sheets of marine grade plywood 3/8” x 4′ x 8′

  • Sides: 10-11 sheets of marine grade plywood 1/4” x 4′ x 8′

  • Floor & Gunnel: 8 sheets of marine grade plywood 1/2” x 4′ x 8′

  • Ceiling (optional): 4 sheets of marine grade plywood 3/16” x 4′ x 8′
  • Strongback: Pine Qty 2 – 2” x 6” x 16′, Qty 1 – 2” x 6” x 12′, Qty 1 – 2” x 6” x 8′, Qty 7 – 2” x 4” x 8′

  • Keel: Qty 7 Fir 2” x 4” x 8′

  • Sheer : 200 linear feet of Juniper or Fir 3/4” x 1” & 100 linear of Juniper or Fir at 1/2” x 1”

  • Rib Bands: 150 linear feet of Juniper or Fir 3/4” x 1”

  • Chine: 100 linear feet of Juniper or Fir 3/4” x 3” OR can 3/4” marine plywood cut in 8′ strips

  • Sheer Bumper: 120 linear feet of Fir or Sapelle 1/2” x 1-1/2”

  • Spray Rail: 100 linear feet of Fir or Sapelle 3/4” x 1-1/2”

  • Floor Supports: 200 linear feet of Juniper or Fir 1” x 1”

  • Resin: 25 gallons of marine grade epoxy resin (DO NOT USE POLY OR VINYL ESTER RESINS)

  • Glass : 200 linear feet of of 1208 or 1700 bi-axial fiberglass 50” wide

  • Filler: 5 lbs of fumed silica or similar for fillets

Questions?  Check out our FAQ

Note: Jig kits will display $0.00 for shipping costs because the are shipped via freight truck or picked up. Please contact us with any questions regarding shipping costs before placing an order.

Additional information

Weight 1 lbs
Kit Includes

CNC cut plywood, Prints detailing assembly of the jig, Plywood and dimensional lumber selection guide

CS-21 Option

Boat Plans, Boat Jig Kit

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