The version with structural base has an orthopaedic bed base integrated into the frame, and is available as standard both in 160 cm double and 120 cm small double versions; the extendible joints between the bed base and the headboard, which can be lengthened by up to 10 cm, enable mattresses from 190 cm to 200 cm in depth to be used (in the version with a 190 cm bed base) or mattresses from 200 cm to 210 cm in depth in the version with a 200 cm bed base. In the “structural bed base” version, three different feet are available as an option: wood, metal and transparent.