Someone had ordered this item and told me about it.  I had looked for just some box springs to finish up my bed but they were all very expensive.  I wanted something that would last for a long long time when they told me about this metal base.  When I got it, I found that it was very easy to assemble and fit perfectly inside the wooden bedframe I already had.  Exact height I needed .  Delivered when it was supposed to arrive.  Wish I had known about this earlier when I purchased box springs for my other bed.  Well built.  I would recommend this to others who are in the market for an item like this.