CALLA puts 17.3 m² of internal space into a 4.98 × 3.98 m footprint. Most owners use this size for a home office away from the house, or a guest room.

Walls are 44 mm solid Nordic spruce logs with interlocking corner joints, cut to size in the factory and assembled on site without special tools. The roof rises from 2228 mm at the eaves to 2700 mm at the ridge. Windows and doors are glazed with Summer 4+9+4.

Supplied as a precision-cut kit with an illustrated assembly manual. Floor boards, interior cladding and the PVC window and door set are priced separately below, so you only pay for what you need. 12 units fit in a full truck load, which is what keeps the delivered price down on bulk orders.

Specification