A Sawn Log is a Building Material in Skyrim: Hearthfire.

Where to find[edit]

You begin with some Sawn Logs that are included with the purchased plot of land

You can buy more in Lumber Mills. Talk to Hod of Riverwood or Temba of Ivarstead, and also check brown patch of dirt near stables.

You may also purchase Sawn Logs from the Mill on the lake just North of Falkreath known as Half-Moon Mill.