There are 6 portable sawmills listed in Missouri. 4 of them offer mobile or on-site milling — the sawyer brings the mill to your logs rather than you hauling them.
Services available in Missouri: Mobile / On-Site (3), Custom Milling, Beams & Timber, Live-Edge Slabs.
Not sure how much lumber your log will yield? Use the board-foot calculator to estimate board feet and milling cost before you call, or read the custom milling cost guide for typical rates.
