Where can ferro-cement be bought? I want to use it to build a boat, but nobody in my town seems to carry it.

Ferro-cement has to be manufactured by the user for his particular application. It is essentially a thin slab of portland cement mortar reinforced with several layers of wire mesh. It is usually made without formwork and it differs from conventional reinforced concrete in that the percentage of steel is considerably higher, as is also the ratio of strength to weight.

A ferro-cement boat taking shape.