The traditional Estonian farmhouse has evolved over 4000 years and is distinct from neighbouring countries. It consists of a long, chimney-less building constructed from horizontal logs and topped with a high straw roof. The interior has three sections - a threshing floor, a kiln room which served as the only heated room, and a dwelling chamber. During summer and autumn, cooking was done outside in a summer kitchen and people slept in lofts and storerooms. Log buildings, including houses and barns, were commonly constructed in Estonia until the mid-19th century using local wood like spruce and pine. Corner notches like the järsknurk and kalasabatapp joints were favoured architectural styles