Our lunchroom / office combo buildings are a great way to save some money on site accommodation on smaller construction sites. Generally they are 7.2m long x 3m wide with half as a lunchroom and half as an office. This photo shows the inside of a brand new portable rental combination building. The lunchroom half comes complete with tables and benches and a sink bench with zip boil unit. Generally the portable smoko half fits around 9 people.