The method Rust Is Gold uses it really simple and straight forward but it does require some metal-working skills.

The first step is to remove the paint from the barrel and sand it down.

Then, you will set the pit into a metal frame to make it ready for the exterior finishing.

How To Make A BBQ Pit Smoker From A Metal Barrel

Image By: Rust Is Gold Via YouTube

Cut Open A Metal Barrel To Make A Homemade Barbecue Pit And Smoker

Set A Cut Metal Barrel Into A Metal Frame To Make A Standing Barbecue Pit With Castor Wheels