Prefabricated cabin, method for building cabin and support leg of cabin

A prefabricated cabin for being transported to an installation site, the prefabricated cabin comprising:

• a cabin box comprising walls surrounding an interior of the cabin box;
• and
• support legs below corners of the cabin box configured for supporting the cabin box on top of the support legs, wherein the support legs are fixed to the cabin box, the cabin box being liftable and lowerable as one unit to stand on the support legs in a desired place;
• wherein one or more of said support legs comprises:
• a first horizontal metal plate placed below the cabin box and supporting the cabin box on top of the first horizontal metal plate;
• and
• a second horizontal metal plate configured for being placed against a supporting base, the second horizontal metal plate being at a distance below the first horizontal metal plate;
• and
• one or more metal pillars between said first and second horizontal metal plates and connecting said first and second horizontal metal plates fixedly to each other,
• wherein the one or more metal pillars include two metal pillars between said first and second horizontal metal plates connecting the first and second horizontal metal plates fixedly to each other, and
• wherein the two metal pillars are spaced apart, an opening extending horizontally through each support leg of the support legs between the two metal pillars.