Around 1850 dollhouse manufacturers started to apply their production methods and capabilities towards the production of toy forts and castles. Sets would consist of wooden components, some blocks and some flat, painted to depict details such as stone, brick, windows, arches and vegetation. The parts would be shipped in a box which was designed to be inverted and then used as the base for the toy fort. This design became the standard design for toy forts and castles for the next 100 years.