ZINUS 9 Inch Smart Metal Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, Queen 4.6 out of 5 stars 53,968 $146.10 source https://www.amazon.com/Mattress-Foundation-structure-assembly-required/dp/B00NPVCPRM/ref=zg_bs_1063306_13/138-0641250-3355512?_encoding=UTF8&psc=1&refRID=DNCQ7GD3C8PAFSWN8507
