Uggh, where to begin on this.  I personally don't think this bed is safe.  It shakes terribly and top bunk sags in the middle if a heavier (although under the weight limit) is on the top bunk.  It looks like they might break through.  I will be returning mine even though we have the whole thing put together which was quite a bit of work.  Even my 100 lb daughter felt very unsafe being on the top bunk.  Very disappointing.  I guess I should have expected  that for the price.  It's a good price.  One of the long poles was also a little bent but it did not impact the structural integrity.