Finding out about medieval peasants can sometimes be tricky. Since they were illiterate, they didn't leave many records of their daily lives. That's why
this conference paper by Christopher Dyer is interesting. Dyer is a leading English economic historian. Here he has pulled together disparate sources of information to give us a picture of the furnishings you could find inside a late medieval English peasant house.
Dyer also has an article on English peasant buildings from the same period. You can see the first few pages of it
here.
February, from the Très Riches Heures of the Duc de Berry