Love the look of this bunk bed and really like having my toddler close to the floor on the bottom bunk. It was really easy to assemble by my self in an afternoon. This was the highest weight rating that I found for "low bunks" at 400 lbs per bunk where many others were 200 lb limit. The only reason this is a 4 star rating instead of 5 star is because of the spacing of the support slats. They are too far apart in my opinion. So, I decided to put both sets on the top bunk and buy another set of supports for the bottom. I went with these: https://smile.amazon.com/gp/product/B00NVLHBUW/ref=ppx_yo_dt_b_asin_title_o06_s02?ie=UTF8&psc=1. Worked like a charm. Now both beds feel extra sturdy and you can't feel the slats through a foam mattress. Very happy with this product.