solid bed frame. bought new at the beginning of the year. sturdy construction, gets the job done. super easy to assemble and disassemble, comes with all the necessary tools (only 2 tools needed)
this one: https://www.amazon.com/Zinus-SmartBase-Mattress-Foundation-Replacement/dp/B00M16A1M8/ref=sr_1_37?s=furniture&ie=UTF8&qid=1526858309&sr=1-37&keywords=zinus+bed+frame+queen