The butt joint is the most basic and simple joint to make because it is made with only two pieces of wood that are butted together, this type of joint isn’t very strong in fact it is the weakest joint that is used in woodwork but also the easiest to make.
This joint can be held together in several ways: with glue, nails, screws or dowel. The butt joint weak and not aesthetically great to look at. This type of joints works well for basic woodwork projects. You can increase the strength by adding a rectangular or triangular block of wood in the corner to increase the surface area.