A solid, metal free solid wood frame that carries any mattress with decent breathability.
The lateral frame has a height of 4 cm. It contains 23 bars (each measuring 5cm x 1.6cm) with gaps of about 3.8cm inbetween at a length of 1.96m. Frames are always 4-8cm shorter and around 1cm narrower than the nominal dimensions so that they can fit into any bed.
This frame can - as opposed to the roll-up frame - also be used in beds without slatted frame support. It reduces the inlay depth of the bed by 4cm.