Once I received my 18 inch smart base I was a little skeptical . Because it didn't look strong enough to me . But I was surprised by the strength of it . I like how it brings more height to my mattress and plenty of storage underneath . sometimes I find myself just looking underneath to make sure it's ok . Excellent work and it doesn't make any noise . Thank you so much and I am impressed by you workmanship and your 5 yr warranty . You definitely have manufactured a excellent product . Keep up the good work .