1. IKEA HEIMDAL-lookalike double bedframe (but much more powerful with thick metal pipe) - headboard+footboard+sideboard+mid beam+ bed base slates - $150 ($125 if you do not desire the bedbase slates) - Third picture.
Queen dimension heimdal bedframe $150 with base+mid light beam (last photo).
2. IKEA underbed plastic box gauges 28x30 with 8" height with only cover - $40 for both or $25/each.
3. IKEA couch bed framework $125 (framework only) - last image - http://www.ikea.com/ca/en/catalog ...
Physical measurement for the under bed frame: 9.5" h x 70.5" large as well as 20" deep.