Perfect size for young children. We searched for bunk beds that had stairs and were short enough to feel safe for our 3  5 year old children- this bunk bed encompasses those features. I will say our 5 year old will be too tall for the bottom bunk within a year so I wouldn’t recommend this bed if both of your children are 5 and up. Also be mindful of your mattress thickness... we had just purchased one that was 6” thick and we had to use it for the top bunk because our other mattress was so thick that when we put it on the top bunk it was at the same height as the rail- not very safe. Wood is a great quality and we found building it to be simple. It’s a 4 and not a 5 because it was missing some bolts and was delivered on separate days causing us to store part of it at our front door until the second box arrived.