STK Pen
When the job demands a dependable livestock trailer without the premium price tag, the Bar-M STK Pen is built to deliver. Designed for producers, ranchers, and hardworking operations, the STK Pen offers the durability, functionality, and flexibility you need to keep livestock moving safely and efficiently.
Built on Bar-M’s commitment to quality craftsmanship, the STK Pen features a rugged design that’s ready for daily use while providing an extensive list of available options to fit your specific needs. Whether you’re hauling cattle to market, transporting livestock between farms, or supporting everyday ranch operations, this trailer is engineered to provide reliable performance season after season.
The STK Pen proves that value doesn’t mean sacrificing quality. With customizable features, durable construction, and practical design, it gives owners the freedom to build a trailer that works the way their operation works.
Affordable. Dependable. Built for the Long Haul.
The Bar-M STK Pen is the smart choice for livestock producers who need a trailer that works as hard as they do.
Models
Standards
Frame and Structure Standards. |
|---|
| "I" beam floor crossmembers typically on 12" centers |
| (5) Steel wheels with 15" load range E tires. |
| All STK Pen models are 6'-8" wide, 6' tall. |
| Aluminum frame |
| Aluminum one-piece seamless roof sheet |
| Aluminum roof bows typically on 16" centers |
| Coupler 2 5/16" clam style latch |
| Exterior aluminum sheeting .040 thick front and ramp |
| Extruded aluminum side slats both sides. |
| Shelby floor system (made in America 20 year warranty) |
| Side wall posts are 1.5" deep, 2.5" to 4" wide typically on 16" centers |
| Spring axles 3,500 pounds with brakes on both. (6 Pen models) |
| Spring axles 5,200 pounds with brakes on both. (8 Pen models) |
| Tongue is triple 2X5 aluminum tube. |
| Top wind jack with wheel |
Pen Trailer Stock Area Standards. |
|---|
| 6 or 8 pen units available |
| All double walled areas to be insulated |
| Both side walls have two plexiglass ready air gaps. |
| Center panels equipped with feeder rail |
| Convertible pen system 50/50 or 60/40 with 1 ½ x 2 ½ heavy duty aluminum frame |
| Custom built walk through door between stock area and tack room |
| High density poly liner 48” high on side wall |
| Interior light to have recessed outside switches |
| Roof framed for 14X14 vent. (A/C) |
| Slim-line LED clear interior lights. |
| Suicide escape door with two plexiglass ready air gaps. (Curbside) |
| Wall from stock area to tack area to have white aluminum sheet above poly liner |
Tack room standards. |
|---|
| Break away battery and charger. |
| Custom built 30" tack door. |
| Divider wall has rods for hanging feeds |
| Spare tire mounted to the front wall. |
| Tack area from wall to nose is 57" |
Pen trailer exterior standards. |
|---|
| All lights are LED |
| Fold down lower-air space one for each pen (no vent front curb side pen) |
| Full width ramp behind 50/50 doors |
| Rear doors to be 50/50 with two plexiglass ready air gaps and cam locks. |
Popular Options
Popular options. |
|---|
| Add plexiglass to both air gaps |
| Black skin upgrade from white skin |
| Charcoal skin upgrade from white skin |
| Upgrade to aluminum wheels (does not include the spare) |
| Add a 12 Volt electric fan (price per fan, max total of 6) |
| Add a 12-volt AMG battery with charging diode and battery box that is mounted in the dressing room. |
| Add a 15K BTU air conditioner. (Includes wire package) |
| Add a 20X20 window in the tack door. |
| Add a shelf and clothes rod. |
| Add an electric jack with 12 Volt battery and Battery box |
| Aluminum brush tray (mounted on dressing room door unless specified) |
| Line and insulate roof of stock area (6 pen) |
| Line and insulate roof of stock area (8 pen) |
| Make all exit gates taller |
| Two-way roof vent (must give location) price is each. |
| Upgrade escape door to deluxe sheeted suicide door. |
| Upgrade rear doors to deluxe sheeted. |
| Upgrade side escape door to side ramp. |
| Upgrade to 16" aluminum wheels and tires. (Spare remains steel) |
| Upgrade to torsion axles (6 pen) |
| Upgrade to torsion axles (8 pen) |
Warranty
BAR‑M Limited Warranty
At BAR‑M, we take pride in building trailers that are made to last. That’s why we back every trailer with a 7-Year Structural Warranty and additional coverage on BAR‑M manufactured components. Our warranty reflects our commitment to quality, craftsmanship, and customer satisfaction.
Warranty Highlights
- 7-Year Structural Warranty
- 1-Year Coverage on BAR‑M Manufactured Components
- 1-Year Coverage on Maintenance Items
- Warranty Registration Required Within 60 Days of Purchase
For complete coverage details, exclusions, limitations, and warranty procedures, please download and review the full BAR‑M Limited Warranty document.
