Overview
STK-12 – 12′ Stock Trailer
The Bar-M STK-12 is a compact and dependable stock trailer designed for livestock owners who need a durable, lightweight trailer that is easy to tow and simple to use. Whether you’re hauling livestock around the farm, heading to the auction, or making a trip to the fairgrounds, the STK-12 delivers the versatility and reliability you expect from Bar-M.
Built with an all-aluminum frame and extruded aluminum sidewalls, the STK-12 offers exceptional strength while remaining lightweight and corrosion resistant. High and low air gaps along the sidewalls provide excellent ventilation, helping keep livestock comfortable during transport regardless of the season.
The spacious open stock area is designed for efficient loading, unloading, and livestock handling. A rear swing gate with built-in slider, curb-side access door, electric brakes, and durable flooring provide the functionality needed for everyday hauling. Its compact size makes it an excellent choice for smaller loads while still providing the durability and quality construction found in larger Bar-M models.
Whether you’re transporting cattle, sheep, goats, pigs, or other livestock, the STK-12 is built to work hard and provide years of dependable service.
Key Features
- 12′ stock trailer design
- Compact and versatile livestock hauler
- All-aluminum frame and construction
- Extruded aluminum sidewalls
- High and low air gaps for excellent ventilation
- Rear swing gate with built-in slider
- Curb-side access door
- Electric brakes on all axles
- Pressure-treated wood floor
- One-piece seamless aluminum roof
- LED lighting throughout
- Spare tire included
- Lightweight and easy to tow
- Corrosion-resistant construction
- Built for cattle, sheep, goats, pigs, and other livestock
The STK-12 combines practical features, durable construction, and easy towing into a compact stock trailer that is ready for everyday farm, ranch, and livestock hauling needs.
Floorplan
Photo Gallery
Spec Drawings
Standards
Exterior |
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| (12) Upper clearance lights. (2) on rear, (3) on road & curb side top rail and (4) on front nose top-rail |
| (2) Amber reflectors. One installed on road side front and one on curb side front, mid way up |
| (2) Amber reflectors. One installed on road side nose and one on curb side nose, just below top rail |
| (2) Lower clearance lights. Down low, (1) on curb side and (1) on road side |
| (2) Red reflectors. One installed on road side rear and one on curb side rear, mid way up. |
| (2) Switches in rear hoop for the stall lights and load light |
| 2 5/16” ball Coupler, Safety cables, Emergency break away battery and switch with charger |
| Automotive style wiring harness |
| Bar-M logo on top-rail. Both road and curb sides near the rear of the trailer on the top rail |
| Curb side access door installed with three heavy duty 5" X 5" hinges |
| Curb side access door to have a cam bar and lockable hasp |
| Curb side access door toward the front side of the front stock area |
| Diamond plate nose guard 16" high |
| Large Bar-M nose decal installed on the front of the trailer |
| License plate light to the curb side of the rear gate, toward the lower section of the trailer |
| Location for license plate on curb side of rear gate, toward the lower section of the trailer |
| Rear swing gate to have a heavy duty steel cam lock |
| Rear swing gate with slider installed with four heavy duty 5" X 5" hinges |
| Rear swing gate with slider. Includes matching air space |
| Red/White conspicuity tape along the entire bottom side of rear gate and rear slider |
| Red/White conspicuity tape along the lower side of road and curb side walls (in sections) |
| Single set of LED turn/stop/tail-lights. Installed about 18" above stock area floor |
| STC-17 Models include two outside tie rings |
| Tear drop style aluminum fender with top mounted amber/red fender light |
| Top crank jack with wheel |
Frame and structure |
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| (4) Steel wheels & (1) steel wheel for spare (15" LR D). Spare tire installed on the side of the trailer |
| 2x6 Pressure treated wood floor |
| Aluminum frame |
| Aluminum side wall posts and aluminum roof bows. Side wall posts are 1.5" deep |
| Dexter spring axles (3,500lb is standard) |
| Electric brakes on all axles |
| Exterior is extruded slat in the stock area and 3-piece skin colored nose sheet |
| Flooring cross members (commonly on 12" centers). |
| One-piece, seamless aluminum roof |
| Unit to be 6' 10" tall (STC-17 Model will be 7' 4" tall) |
Dressing room |
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| Dressing room to have a straight wall |
| Dressing room to have dressing room door located on the curb side |
Stock area |
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| .100 Aluminum sheet in the stock area at the front nose |
| (1) Slim-line LED stall light per stock section installed on cove on curb side |
| Air gaps on the side access door & rear swing/slider gate match the sidewall air gaps (top gap is removed) |
| Center swing gate and heavy duty slam latch. Installed near center of stock area (Not on 12' and STC-17 models) |
| Extruded sides are hollow core to allow for a smooth surface in the stock area |
| High and low air gaps road and curb side walls in stock area |
| STC-17 Models include two inside tie rings |
Popular Options
Popular options |
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| Add a center swing gate to the stock area on the 12' model |
| Add a load light centered over the slider on the rear gate |
| Add a set of bridle hooks |
| Add a tie rail between the air gaps in the stock area |
| Add plexiglass to both air gaps |
| Black skin upgrade from white skin |
| Charcoal skin upgrade from white skin |
| Remove the slide on the rear gate |
| Running boards |
| Saddle Boss with mount |
| Upgrade the center swing gate to a swing gate with slider |
| Upgrade the standard 3,500 pound sprung axles to 3,500 pound torsion axles (Will be LRD 15" tires) |
| Upgrade the standard 3,500 pound sprung axles to 5,200 pound spring axles (Will include the tire upgrade to LRE) |
| Upgrade to 6 lug, 5,200 pound torsion axles and 15" Load range E tires. Includes all tires (Upgrade from 3,500# sprung axles with LRD tires) |
| Upgrade to aluminum wheels (does not include the spare) |
| Upgrade to an aluminum floor from a wood floor |
| Upgrade to rubber mats over the wood floor in the stock area |
| Upgrade to Shelby flooring in lieu of the wood floor |
| Upgrade to the heavy duty brush fender |
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.
