Assembly was 4 hours x 2 people. The only challenging item was determining the fasteners to use. The picture doesn't show the actual size of each fastener. The bunk bed looks very nice - haven't used it yet but it looks like it will do the job. The main issue I have is with the spacing between the slats - it is too large. There should be more slats or they should indicate a bunk board is required. Now, I have to go buy slats or plywood.