DIY Chainsaw Mill

Turning Logs Into Lumber With a Simple Mill

The basic job of a chainsaw mill is to keep the saw traveling in a straight, consistent plane so each pass creates a usable surface for the next cut.

Instead of building a large dedicated mill, this design uses a compact guide system that can be positioned directly on the log.

Building the Aluminum Guide Rails

Aluminum angle creates the straight rails that guide the trolley along the length of the log.

The important part is keeping the two rails parallel and rigid enough that the chainsaw stays on the same cutting plane from one end of the log to the other.

Chainsaw Trolley

Small V-groove trolley wheels ride along the aluminum rails and allow the chainsaw assembly to move smoothly through the cut.

The wheels help reduce side-to-side movement while still keeping the mill compact enough to move and store when it is not being used.

Setting the Cutting Height

The adjustable jack-style mechanism allows the cutting height to be changed so the mill can produce boards at different thicknesses.

Once the height is set, checking both sides before beginning the cut helps keep the resulting board consistent from one end to the other.

Using a Ripping Chain

A ripping chain is designed specifically for cutting along the grain of a log rather than across it like a standard chainsaw chain.

That makes it better suited for milling and helps produce a smoother surface on the boards coming off the log.

Making the First Cut

The first pass is the most important because it creates the flat reference surface used for every cut that follows.

Once that surface is established, the mill can be repositioned and the cutting height adjusted to produce additional boards from the log.

Milling Safely

Chainsaw milling is demanding work. A stable log, sharp chain, appropriate protective equipment and a clear working area are essential.

The biggest benefit of this approach is access. A relatively simple setup can turn storm-fallen or locally sourced logs into useful lumber for future woodworking projects.

Tools & Hardware

Quick links to the main hardware and materials used to build the chainsaw mill.¹

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