Solid construction – Build very solidly. Engineered for straight forward and nice fitting construction. Beware, however, that you need to be strong to bend those fibreglass rods into their little slots. Other than that strength factor, it was easier than expected - about 2.5 hours. Possible to do with one person and a chair, but two better. Caution to old dads who think their bouncy bits still like bouncing. Best to watch the kids have fun and reward oneself with a beer.