I was pleasantly surprised that our guest room looks more spacious with this set.  We bought this set because it has a weight capacity for both top and bottom of 400 lbs. The full size bed has 2 braces that must be installed to hold weight up to 400 lbs.,  therefore, we weren't'the able to install the trundle. The stairs seem a lot safer than a ladder and our grandkids and adult guest love this set.