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Home/Sawmills/OS27 Portable Sawmill

OS27 Portable Sawmill

free extension

A reliable mid-sized portable sawmill that is rugged enough for any job.

Sku: OS27-0013G

42 reviews

$2,837

As low as $71.95/mo*
AS LOW AS Bread

$71.94 / MONTH *

Engine Type

Bundles

Mobility Towing Bundle with 7' Track Extension for OS27

Mobility Towing Bundle with 7' Track Extension for OS27

+$2,196$2,696

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Track Extension Bundle with Mobility Sub-Frame Ext for OS27

Track Extension Bundle with Mobility Sub-Frame Ext for OS27

+$697$1,019

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Blades and Deluxe Maintenance Bundle for OS27

Blades and Deluxe Maintenance Bundle for OS27

+$352.80$392

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Manual Log Loading Bundle with Toe Board for OS23, OS27 & OS31

Manual Log Loading Bundle with Toe Board for OS23, OS27 & OS31

+$789.30$877

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Optional Attachments
Auto Blade Lube System image1

Auto Blade Lube System

+$115

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Log Loading Ramp Package image1

Log Loading Ramp Package

+$437

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Mobility Sub-Frame Extension Kit for OS23, OS27 & OS31 with 2 Support Jacks

Mobility Sub-Frame Extension Kit for OS23, OS27 & OS31 with 2 Support Jacks

+$457

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Mobility Towing Kit for OS23, OS27 & OS31 with 6 Support Jacks image1

Mobility Towing Kit for OS23, OS27 & OS31 with 6 Support Jacks

+$1,498$1,737

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  • Ships in: Ships in 2 Weeks. Flat $299 shipping on sawmill orders. *Additional charges for Alaska and Hawaii.
  • Easy Financing with Shop Pay at Checkout
  • 1-Year Warranty and 30-Day Guarantee

$2,837

Specs - OS27

Log Diameter

27in

The maximum log diameter that your mill will be able to process.

Width of cut

22in

The largest width of material your mill will be able to cut.

Depth of Cut

7.25in

Depth of cut is the thickness of a piece of lumber being cut.

Max Horsepower

13.5hp

The indicated horsepower of the engine’s maximum output under ideal conditions.

  • Description

  • Whats Included

  • Get a Quote

Our legendary Frontier Sawmill — now evolved with a tough, refreshed look.

The Frontier OS27 is reliable mid-size sawmill with even more horse-power to serve your milling needs.

Capable, dependable, and strong, the OS27 is a sturdy workhorse, ready for almost any job you can think of, with greater log capacity and an electric start option. It handles logs up to 27 inches in diameter and can saw boards up to 11 feet long, and tackle even longer logs with the addition of extra 7-foot extensions. The feature-rich OS27 boasts patented innovations that guarantee ease of use and straightforward operation. Versatile mobility, log loading, and dogging options allow you to customize your sawmill exactly the way you want it. This is the ideal choice for those seeking a versatile mid-sized milling solution.

  • Auto-Locking Sawhead
  • 9/8", 8/4", 6/4", 1"
  • 3/4" Set Display
  • EZ Blade Tension System
  • Adjustable Blade Guide
  • Manual Blade Lube System
  • Log Dogging Clamp (x1)
  • Long and Short Log Rest (x2)
  • Leveling Feet (x10)

Request a free quote from our experts.

Auto-Locking Sawhead

The patented infinitely-adjustable auto-locking sawhead offers precise depth-of-cut control, simplifying your cutting process and saving time. One turn of the crank equals 1 inch of blade height adjustment.

EZ Blade Tension

The patented EZ Blade Tension systems allows for frustration-free blades changes by preserving critical bandwheel alignment when you tension the blade. When blade tensioning is easy your band blade changes are fast, allowing for more time milling.

Adjustable Blade Guide

The patented auto-locking adjustable blade guide allows you to make the blade width narrower and therefore more controlled on smaller cuts. This fast single-action system lets you quickly adjust the cut width to keep the exposed blade well supported while cutting various sized material, improving stability and reducing blade wander.

Log Dogs and Log Rests

The log dogging and log-rest system securely holds a log on the sawmill log bed. The adjustable log dog clamp uses a screw-dog system to firmly hold logs or cants while cutting. Removable long and short log rest posts provide sturdy support for full logs and squared stops for partially cut logs. Built-in low-profile cant stops hold cants in line with the blade guides and can be used with the optional quick-locking cam dog system.

Micro-Adjust Leveling Feet

Ten micro-adjust leveling feet are included for ground-level stationary sawing to help ensure the mill stays stable for safe, accurate cuts. These can be used in conjunction with optional leveling legs to provide sturdy support for the log bed at a more comfortable working height.

Add mobility and tow it right to your milling site

For sawyers working in multiple locations, you can tow the OS27 right to your milling site with the optional mobility kit and jack support package. This option includes the mobility subframe, axle, 12-inch wheels with quick release steel fenders, removable drawbar, six adjustable support jacks, and the carriage lockdown system. Add the mobility kit now, or upgrade your mill in the future when the time is right for you.

Rigid 4-post saw carriage construction for smooth, straight cuts

Stop worrying about saw head bounce, sag, and sway. Frontier’s patented dual-plated carriage frame maximizes strength during operation. Machine carriage wheels with sealed ball bearings and dual-track sweepers come standard. A precision laser-cut track ensures smooth carriage movement throughout the cut. Superior stability means even, accurate cutting.

TECHNICAL SPECS

Compare technical data to determine which Frontier is right for you.

log diameter
width of cut
depth of cut
max horsepower
log length

still have questions?

Standard, the OS27 band sawmill log bed is 14 feet long (4.3 m), which allows you to makes cuts up to 11 ft (3.4 m) in length. To saw longer material, you can add optional 7 ft (2.1 m) log deck extensions. You can add multiple extensions in stationary configuration to cut logs of any length. If you want to add the mobility towing system to your Frontier, you can still add one 7 foot bed extension and have it supported with the mobility sub-frame extension kit.

Yes, with the optional Mobility Kit you can tow the OS27 sawmill through your woodlot and directly to your sawing site. This includes a steel sub-frame, wheels, a quick-disconnect drawbar, running lights, wiring harness, safety chains, and support jacks. Additionally, there's an option to add a mobility kit sub-frame extension with extra jacks to support a 7 ft extended log deck. You can add the mobility kit now or choose to upgrade your mill in the future.

Some sawyers have their own tractors or loaders. If you don't have access to such equipment, you have the option to enhance your setup with the available log loading systems designed for the Frontier OS27. This includes a ramp package for efficiently moving logs onto an elevated sawmill bed. To further streamline the process, you can complement it with a log winching system. This system facilitates the movement of logs onto the sawmill bed and includes a log turning hook for rotating heavy logs and cants and hold them firmly against the log posts for dogging.

The sawhead is pre-assembled at the factory, and thanks to the fully illustrated step-by-step manual with exploded illustrations, diagrams, and photographs, the rest can usually be put together in a single day. You'll only need a few basic tools, including combination and Allen wrenches, a ratchet with SAE and SI sockets, an adjustable wrench, a Phillips screwdriver, a drill, lubricating and engine oils, and a grease gun. Regardless of your skill level, Frontier Sawmills are designed to be user-friendly and easy to operate. We also provide toll-free support from the moment your Frontier Sawmill arrives, through your first cuts, and beyond.

With every Frontier sawmill, you receive a one-year consumer warranty. We will repair or replace, at our discretion, any part returned to us and found to be defective through manufacturing within the first year of the original purchaser’s ownership (except consumable items like belts, blades, bearings & clutch). The engine is covered under warranty directly with the engine manufacturer (two years by Briggs and three years with by Kohler). We back that up with a 30-day money-back guarantee. If your Frontier sawmill doesn’t do everything we say, simply return it to us within 30 days and receive a refund (shipping not included)*.

*Not including used blades, damaged parts or restocking fees.

WHAT OUR CUSTOMERS ARE SAYING

Based on 42 reviews
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Verified Customer
Jean A Trottier
Toronto, CA
Classic OS27 13½ hp (420cc) Briggs & Stratton (recoil start) Engine
OS27 is a powerfull piece of equipments. At first assembling the mill is part of a short necessary learning curbe. Youtube is of great help to improve the original package in proposing add on for the Mill. I find making my own planks and beam have made less construction's left over and waist. I recomand this mill for company and home owner with a small parcel of land and creativity.
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3 days ago
Verified Customer
Ken Rose
Halifax, CA
Classic OS27 13½ hp (420cc) Briggs & Stratton (recoil start) Engine
Lots of power and easy to start
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3 days ago
E.Birchfield
Classic OS27 13½ hp (420cc) Briggs & Stratton (recoil start) Engine
I just purchased my second OS27 during the sale in July and have no regrets.I purchased my first one in June 2020 and have used it a lot,many thousands of board ft sawed on it and I've built a couple of outbuildings and about 30 pieces of furniture over the past 5 years.Now these mills are a great value but have several bugs and quirks that each individual owner will incur before and during use.I like the simplicity of it,easy to work on and fix if needed,a lot of parts can be sourced locally also.These manual mills will work you pretty hard if your trying to production mill with it which I don't do because I'm old,so I don't try to saw a thousand board ft a day with it,but have no doubt you could.I will set up this new mill on another area of the farm so I can reduce distance and skidding time.Thanks Frontier for my sawmill and achieving a bucket list item for myself
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6 days ago
Verified Customer
Luke Vandament
Jersey Shore, US
Classic OS27 13½ hp (420cc) Briggs & Stratton (recoil start) Engine
This setup guide lost it 2 stars and only the value of the extension and trailer deal pushed it to a 3/5. That was heck of a value but wouldnt’ve recommended it to anyone with all the pain and frustration going thru assembly. Had to call support… but Support was there and very helpful if you can call EARLY HOURS EST and then no wait time. Late eve- forget about it.
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9 days ago
Verified Customer
William Fairbairn
Toronto, CA
Classic OS27 13½ hp (420cc) Briggs & Stratton (electric start) Engine
I'm loving it and services was amazing
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11 days ago
Verified Customer
Dwayne nickerson
Halifax, CA
Classic OS27 13½ hp (420cc) Briggs & Stratton (electric start) Engine
Works very well. Happy so far
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2 months ago
Verified Customer
WISCO OGB LLC Streif
Denver, US
Classic OS27 13½ hp (420cc) Briggs & Stratton (recoil start) Engine
It seems there isn’t power at times. The engine at full power when cutting Boggs way down unless I’m barely moving the cutting head. Once I let go of throttle control engine kills
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3 months ago
Verified Customer
Andrew Jaciw Zurakowsky
Newcastle, CA
Classic OS27 13½ hp (420cc) Briggs & Stratton (recoil start) Engine
The overall saw quality is great, with minimal areas of improvement. So long as you keep your blade clear or saw dust, and depending on the wood species, the blade has no problem running all day without swap out/sharpening. We did the trailer option too, which is extremely helpful for maneuverability in a remote area. The overall build took a few days, working a few hours per day. Lifting the head unit certainly should be done with minimum 2 people. We had high density foam blocks to lever up to the needed height, but becareful! As for the operation of the machine, the first draw back is the cooling line. The valve is simply a off and on valve, so don't open it all the way, rather partly to have a slow drip so you do not gum up the blade and housing. Next, the housing itself does collect lots of sawdust if wet, so be mindful of that. Additionally, the safety switches for the housing were faulty, resulting in engine starting problems. Frontier was quick to provide feedback and a replacement, unfortunately, I am concerned that a switch replacement will lead to another failure, meaning unplugging the safety switched from the engine. The last issue I have is the length of the track, its just shy of producing a 12 ft length board, which I feel would be the most common length board to make, meaning the extension, or muscling, or a jig to get that extra foot of board. Others may find no issues with that, but personally, being able to produce 12 ft out of the box would have been a great feature to have and to seperate itself from the competition. Another thing to keep in mind, if doing shorter logs, around 6ft, you may want to buy an additional bunk so the log can straddle 2-3 bunks and be more stable. Overall though, the saw cuts well, consistent width cutting and most importantly lots of FUN! Looking forward to projects to be made from using our own lumber.
2 people found this review helpful.
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3 months ago
Verified Customer
ANDREW HILL
Classic OS27 13½ hp (420cc) Briggs & Stratton (recoil start) Engine
Ibought it and asked for a delivery in the new year but they sent it right away. I refused delivery and they shipped it all over and when my delivery window came it arrived with trash, food and drinks dumped into the open corner. Sugar sticky and trash ran over it. I opened and cleaned best I could and did not want to deal with all this extra. I was so mad I just left it there in a building. No one there cared about what happened nd it was their fault for shipping when I was leaving for Flordia.
1 person found this review helpful.
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3 months ago
Verified Customer
Brian Battista
Scottsdale, United States
Classic OS27 13½ hp (420cc) Briggs & Stratton (recoil start) Engine
Bought the mill and assembled 7 months ago. I have used it a ton. In general the mill runs and preforms as I expected. However, The assembly process was a nightmare and the directions were better off not being included. Some of the parts such as the tow kit didn’t fit correctly. You need to own tools and be handy to assemble which I am sure most of the people interested probably are. All that being said I would buy again, directions just need improvements. I should also note that the staff and customer service is excellent and willing to help along the way.
1 person found this review helpful.
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3 months ago
Verified Customer
Jason Englot
Classic OS27 13½ hp (420cc) Briggs & Stratton (recoil start) Engine
Very nice running motor the only thing I would change is how the throttle mounts to the motor
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4 months ago
Verified Customer
David MIller
Kennewick, United States
Classic OS27 13½ hp (420cc) Briggs & Stratton (electric start) Engine
The engine has is reliable and easy starting. Has plenty of power for the largest logs.
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4 months ago
Verified Customer
Stephen petrie
Classic OS27 13½ hp (420cc) Briggs & Stratton (recoil start) Engine
the engine works pretty good,a little trouble getting it to idle properly .
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4 months ago
Verified Customer
James Greenstreet
Classic OS27 13½ hp (420cc) Briggs & Stratton (electric start) Engine
Magnet dropped out of flywheel and locked engine. Repaired and back runnig in 3 days.Covered by Briggs warranty. Good engine overall.
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4 months ago
Verified Customer
Lawrence Durbin
Classic OS27 13½ hp (420cc) Briggs & Stratton (electric start) Engine
All the power I need to cut hardwood. Set all winter (michigan) started like I had run it the day before. Very pleased with it and the sawmill
1 person found this review helpful.
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4 months ago
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