Metal free* solid wood bed slats (beech wood) that carry any mattress with decent breathability.
The lateral frame has a height of 4cm. It contains 23 bars (each measuring 5cm x 2cm) with gaps of about 3.8cm inbetween.
Frames are always 4 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 slats - also be used in beds without slatted frame support. It reduces the inlay depth of the bed by 4cm.