We are using this climber for our toddler aged children in a Child Care Center. They love their new climber... they call it their train.To help with the assembly, I sorted out all of the screws and bolts into a labeled ziploc baggies and have a powered up screw driver available.My co worker and I assembled the climber in about 4 hours non stop. We were proud that we did it and the children enjoyed watching as we put it together. They were excited to see it complete so they could start climbing and sliding.