Simple, easy to follow instructions. Two people put together start to finish (with interruptions) in 1.5 hours. The kids love their bunk bed. Only thing that would make this perfect is if the middle bunk had a cut out of the side frame where the long ladder reaches, that step is hard to use because the side rail from the middle bunk is right up next to it, so only your toe can fit on the step, if that makes any sense! Ha!