In the UK, house construction is divided into separate stages ["first fix" and "second fix"](http://en.wikipedia.org/wiki/First_fix_and_second_fix)

first-fix includes carpentry that the eventual occupier of the house won't see. For example the woodwork inside stud-walls. It is expected and normal that this isn't finished to the standard you would expect of a second-fix carpenter and not to the standard you would expect of a joiner or cabinet-maker.

Some saw-makers sell ["first-fix saws"](http://www.toolstation.com/shop/Hand+Tools/d10/Saws/sd70/Predator+First+Fix+Saw/p34048) and ["second-fix saws"](http://www.toolstation.com/shop/p54111). First-fix saws have fewer teeth per inch and cut faster but leave a rougher cut edge.

![enter image description here][1] ![enter image description here][2]

This distinction between visible and hidden work is  probably similar where you live, though terminology will differ.


  [1]: https://i.sstatic.net/enEuj.png
  [2]: https://i.sstatic.net/2k7rE.png