The boxes are made from marine plywood, which is thicker than most regular plywood.
Both boats were made of marine plywood and were about 24 feet long.
Made of marine plywood, it has amoeba-shape windows and an egg-shape conference room.
Percy Blandford produced the design with the amateur builder in mind, for building out of marine plywood over a simple frame.
He replaced it with a sheet of marine plywood of much greater strength.
A second option is to board up windows with 5/8" marine plywood, cut to fit and ready to install.
The invention of marine plywood and fibreglass now enabled his boat designs to be mass-produced.
They were originally designed and built in marine plywood using glued lapstrake construction.
He published the design in Rudder Magazine with instructions for how to build it at home using marine plywood.
Various adhesives, such as urea-formaldehyde or the urea-melamine-formaldehyde used in marine plywood.