Mia 15



Construction Sequence

Mia was the second design that I published, a 12' runabout, inspired in part by William Jackson's 1955 design for the 'Ace' which was produced by the Sande Boat Works between 1956 and 1962 (www.sandeace.com), and in part by the 1950's designs of Hal Kelly.

Mia has been a popular design and this has prompted me to produce this extended 15' version - Mia 15.

The forward section is essentially the same as Mia, the space between the cockpits has been increased, there's more space behind the rear seats and this design incorporates a motor well.

The boat is designed for short shaft outboard engines in the 10 to 30 hp range.



Length 15' 1"

Beam 5' 4"

Bare Hull Weight (approx) 270 lbs


Power Requirement:

10 to 30 hp

short shaft outboard


10hp to plane with 1 p.o.b.

15hp to plane with 2 p.o.b.

30hp to plane with 4 p.o.b.

List of Materials

Marine Plywood:

1/4" x 4' x 8'

8 sheets

3/8" x 4' x 8'

6 sheets

3/4" x 1 1/2" timber for gunwales & inwales

about 70'

3/4" x 3/4" timber for support battens

about 50'

2" x 2" timber for bottom stiffener

about 10'

3" glass tape

about 50'

About 10 yards of glass cloth to cover the hull bottom and overlap

About 2 gallon of epoxy resin

About 4 pounds of resin thickening powder

Styrofoam or empty plastic bottles for the flotation

Note that the hull bottom is specified in 1/4" plywood in order to facilitate bending the

panels at the bow. For heavy use the floor thickness can be increased by adding another layer of plywood, glued in place with epoxy resin.