That's a great question! For most basic outdoor trash cans, the assembly required is actually very minimal, which is one of their biggest advantages. Typically, you're looking at a process that takes just a few minutes and requires no tools at all.
Often, the main body of the can comes as a single, molded piece. The assembly usually involves attaching the lid. This is commonly done with a simple hinge system. You might just need to line up the pins on the lid with the slots on the trash can body and press or snap them into place. Some models might include a couple of small, hand-tightened bolts for a more secure fit, but a screwdriver is rarely needed.
In short, you can expect a straightforward, tool-free setup for a standard model. It's generally a one-person job that you can complete in under five minutes, right out of the box. You'll be able to get it set up and ready for use almost immediately.