Boian archaeological sites have tended to be found next to rivers and lakes that had rich floodplains that provided fertile soil for agriculture.
During Boian phases I and II the dwellings of this culture were thrown-together, oval-shaped lean-to or dugout pit-house shelters built into river banks and ledges.
The third type of houses were larger, rectangular (up to 7 by 3.5 meters, or 23 by 11.5 feet) wattle and daub structures with wooden platform floors covered in clay, and roughly-thatched roofs, built at ground level.
[2] The proximity of their settlements to deciduous forests and steppe vegetation provided a good supply of wild game for their diet and fuel for their fires, tools, and homes.
[3] Beginning in Phase III, they began to use graphite paint to decorate their pottery, a method probably borrowed from the south Balkan Marica culture.
[note 2][4] The Boian culture continued to improve its ceramic technology until it reached its height during Phase III, after which it began to decline in quality and workmanship.
[3] The use of lithic technology occurred throughout this culture's existence, attested to by the presence of debitage found next to various types of shaped flint and polished stone tools.