For most models, your adjustable base will arrive pre-assembled. The assembly process entails attaching the retainer bars, the legs, and other small attachments as necessary. The required tools will be included if needed. The weight of the base will vary based on the size of the bed and the model. For people that are unable to lift heavy items, or just don’t have a helping hand, consider taking up a delivery service that includes set-up in your room of choice.