4. Tablinum: the large study room of the master of the house, where the family archives were kept and the owner received his customers.

5. Peristilium: atrium with columns, where the private family life took place, built around a well-kept garden(hortus) surrounded on all sides by a generally two-storied portico(porticus) supported by columns.

Facing the peristilium there were two large and luxurius rooms: the triclinium and the exedra.6. Triclinium (oecus tricliniare), was the large and sumptuous dining room, the largest in the house, where banquets with the special guests took place; often decorated with frescoes on the walls and mosaics on the floor. It takes his name from the tree beds (oecus tricliniares) on which the owner and his guests lay on one side for the entire time of the supper.

7. Exedra: was a large reception room, also used for banquets and dinners starting from the imperial age, in place of the triclinium, with mosaic floor and walls covered with frescoes and colored marbles.

8. Cubicula: were the bedrooms, not only intended for the night; there were also the cubicula diurna, where one could rest during the day or study; they were also divided into main and simple cubicula near the atrium.

An example of cubiculum in the villa of Boscoreale, Campania

9. Facing the peristylium was also the kitchen (culina): it was the smallest and gloomiest room of the house, in spite of the somptuousness of banquets; taken up almost entirely by a masonry fireplace, a small bread oven and a sink.

Recreation of a kitchen in the country villa

Other rooms usually present are:10. A big oecus, that is a reception room for guests or political personages.