Best Chainsaw Mill (2026): 5 Portable Mills Compared

Finding the best chainsaw mill depends on the diameter of your logs, the length of your chainsaw bar and whether you need an entry-level slabbing attachment or a complete modular rail kit. A chainsaw mill clamps directly onto your guide bar, converting a standard gas saw into a portable lumber mill right where a tree drops. This guide compares five chainsaw mills by bar capacity, cutting depth, frame materials, hardware and manufacturer requirements.

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Compare the picks

Model	Woodlot Score	Type	Bar capacity	Max cut capacity	Material	Weight
Granberg Alaskan MKIV	8.0/10	Alaskan slabbing mill	Bars up to 30 in	24 in wide, 0.5 to 13 in deep	Aluminum, zinc-plated steel	18.4 lb
XSLOER 36-Inch Mill Kit	7.7/10	Mill and 9 ft rail kit	14 to 36 in	Under 36 in wide, 0.5 to 12 in thick	Aluminum, galvanized steel	33.3 lb
Carmyra 36-Inch Mill	7.3/10	Portable slabbing mill	14 to 36 in	0.2 to 11.81 in thick	Steel and aluminum	Not stated
Granberg G777 Small Log	7.0/10	Small log mill	16 to 20 in	Not stated	Solid steel bar clamp	1.76 oz listed
Zihvfzu Vertical Mill	6.6/10	Vertical lumber guide	Not stated	Up to 2 x 6 in boards	Carbon steel	1.56 kg

Specifications are manufacturer rated, collected 10 October 2026. None of these listings states a warranty term with a concrete length, and none names a safety standard, so all five score zero for safety and warranty.

The picks

How we scored them

Each mill is scored out of 100 on performance, build, value, safety and warranty, using only what the listing publishes. The criteria follow our Woodlot Score system.

Product	Woodlot Score	Perf. /35	Build /25	Value /25	Safety /10	Warranty /5
Granberg Alaskan MKIV	8.0	30	22	19	n/a	0
XSLOER 36-Inch Mill Kit	7.7	29	19	21	n/a	0
Carmyra 36-Inch Mill	7.3	28	18	20	n/a	0
Granberg G777 Small Log	7.0	24	21	18	n/a	0
Zihvfzu Vertical Mill	6.6	21	19	20	n/a	0

Scores run from 0 to 10. Safety counts only for powered gear or where the listing states safety features; where it does not apply, the score is taken over the remaining 90 points.

Buying guide: choosing the best chainsaw mill

Slabbing mill or vertical guide

Chainsaw mills fall into two distinct mechanical designs: horizontal slabbing mills and vertical lumber guides. Horizontal slabbing mills, such as the Granberg Alaskan MKIV, Carmyra and XSLOER kits, clamp across the chainsaw guide bar at both ends. They ride along the top of a log to slice wide boards, mantelpieces and live-edge slabs. In contrast, vertical guides, like the Zihvfzu model, clamp near the powerhead to guide vertical 90-degree cuts along a reference guide board, squaring edges or cutting dimensional lumber up to 2 by 6 inches.

Bar capacity and log diameter

Your chainsaw guide bar length determines the maximum log diameter you can cut. A 36-inch mill frame, such as the Carmyra or XSLOER, accommodates bars between 14 and 36 inches. However, the nose and tail clamps consume several inches of usable bar length. For example, the Granberg G778-30 clamps onto bars up to 30 inches long but yields a maximum board width of 24 inches. Sizing your bar to your timber prevents bogging down; see our guide on how long should a chainsaw bar be for bar selection advice.

Engine power and ripping chains

Milling puts immense continuous strain on a chainsaw powerhead. Unlike bucking firewood, where cuts take seconds, milling a 9-foot hardwood log requires running at wide-open throttle under heavy load for minutes at a time. The Granberg G777 requires an engine of 50 cc or larger for 16 to 20 inch bars, while the 30-inch Alaskan MKIV requires 60 cc or more. Never mill with a standard crosscut chain; always fit a dedicated ripping chain paired with an appropriate chainsaw for milling logs.

First-cut rail systems and leveling

Because a tree trunk is cylindrical and uneven, a slabbing mill has no flat surface to glide across on its initial pass. You must mount a straight, rigid reference track on top of the log using lag screws or brackets. The XSLOER kit includes a 9-foot modular aluminum rail system that can also be assembled into a 6-foot track. Once the first outer slab is removed, the smooth cut wood surface serves as the guide datum for every subsequent cut.

Safety and protective gear

Operating a chainsaw mill exposes you to sustained vibration, flying sawdust and continuous chain movement near your body. Always follow forestry guidelines from the OSHA logging eTool by equipping yourself with a full chainsaw safety gear checklist: wear cut-resistant chaps, a helmet with face screen and hearing protection, heavy gloves and steel-toe boots. Beware of kickback risks when engaging log ends, keep auxiliary bar clamps securely torqued, and never cut alone in the woods or yard.

Frequently Asked Questions

What size chainsaw do I need for a chainsaw mill?

Engine size depends on the bar length and mill model. The Granberg G777 specifies a minimum of 50 cc for 16 to 20 inch bars, while the Granberg G778-30 requires at least 60 cc for bars up to 30 inches. Milling hardwood logs near the 36-inch maximum capacity of the Carmyra or XSLOER frames demands a high-displacement professional saw to maintain chain speed without overheating.

Do I need a special chain for chainsaw milling?

Yes. Standard crosscut chains tear wood fibers and create uneven surfaces when cutting parallel to the grain. A specialized ripping chain is sharpened with cutters ground to shear along the grain smoothly, reducing feed effort and creating cleaner lumber faces.

How do you make the first cut with a chainsaw mill?

A chainsaw mill needs a flat plane to glide across, which a round log cannot provide. You must fix a level guide track to the top of the log before cutting. Kits such as the XSLOER 36-Inch Mill include a 9-foot modular rail guide for this purpose. After removing the top slab, the flat surface of the log guides all remaining passes.

Can a chainsaw mill cut hardwoods like oak and walnut?

Yes. The Carmyra and Granberg listings confirm they cut dense hardwoods such as oak and walnut as well as softwood cedar. Hardwood milling requires a sharp ripping chain, proper bar lubrication and patient, uniform feed pressure.

What is the difference between a slabbing mill and a vertical mill guide?

A slabbing mill clamps horizontally across both ends of the bar to slice wide live-edge slabs and lumber from the top of the log. A vertical guide, such as the Zihvfzu model, mounts near the saw body to make 90-degree vertical cuts along a reference board, squaring log edges into beams or cutting boards up to 2 by 6 inches.

Related guides

See our chainsaw gear hub, our guide to the best chainsaws for milling logs, the best chainsaw chains for ripping logs, and our chainsaw safety gear checklist. For chain maintenance and setup, see what chainsaw chain do I need, how often should you sharpen a chainsaw chain, best chainsaw sharpeners, and why does my chainsaw cut crooked. For bar sizing and timber preparation, check how long should a chainsaw bar be and how to tell if firewood is seasoned.

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