You can't do this for the cost, I know because I did the leg work. I recommend the 18 jump box. It's great for step ups, seated squats, single leg pistol squats - you name it!" .
this is really good for the price.
cap screws, washer nuts and and collapsed pieces ships better than a welded platform.
i'm heavy enough on my own at 225, then grab a pair of 50lb dumbells.
these stands work.
make certain that you or someone you know tightens the bolts well.
use some loctite if you need.
JL 
