This sofa is a 3 in 1 bargain: L-shaped chaise lounge, storage under chaise, and sofa bed. Assembly was easy as it comes in 3 ready to use sections delivered in 3 boxes. The most work required was attaching the feet and wheels, not sure why but 4 holes weren't drilled, don't be deterred if you don't have a drill you'll figure out where the holes should be by lining up the feet and then if you apply pressure to the nail with the screwdriver while turning you'll be able create the holes as you tighten the screw to secure the feet.