While some modern chainsaws are so large that they require two persons to control, two-man crosscut saws were primarily important when human power was used.
In some cases, such as when felling Giant Sequoias, sawblades could be brazed together end-to-end in order to create longer saws.
The technique in using a two-man saw involved a sawyer standing at each end.
Cutting from underneath a suspended log, called "underbucking", might also have been used if binding became a big problem.
[3] The two applications require slightly different designs: a felling saw has a narrower blade, allowing wedges to be more easily inserted, while a bucking saw has a wider blade, giving it more strength.