Butt joint
（重定向自Dowel joint）
A butt joint is a technique in which two pieces of wood are joined by simply butting them together. The butt joint is the simplest joint to make since it merely involves cutting the wood to the appropriate length and butting them together. It is also the weakest because unless some form of reinforcement is used (see below) it relies upon glue alone to hold it together. Because the orientation of the wood usually present only end to long grain gluing surface, the resulting joint is inherently weak.