Overview
ES-21-ST – Two Horse Straight Load Bumper Pull
The Bar-M ES-21-ST is a premium two-horse straight load trailer designed for horse owners who value safety, comfort, and ease of handling. Featuring a traditional straight-load configuration, spacious dressing room, and lightweight all-aluminum construction, the ES-21-ST provides a dependable hauling solution built for years of reliable service.
Built on an all-aluminum frame with an extruded aluminum floor and Dexter torsion axles, the ES-21-ST offers excellent towing stability, corrosion resistance, and long-term durability. The horse area is designed with horse comfort in mind, featuring high-density horse armor lining, rubber flooring, airflow dividers with stall pads, roof vents, LED stall lighting, and large sliding windows that provide outstanding ventilation and natural light.
Each stall is equipped with its own access door, allowing easy loading, unloading, and access to horses while traveling. The rear ramp and upper tail doors simplify loading while helping keep horses secure and comfortable. A spacious front dressing room provides dedicated storage for saddles, tack, and equipment, making it easy to stay organized on the road.
Whether you’re heading to horse shows, trail rides, clinics, or weekend adventures, the ES-21-ST combines practical features, premium construction, and exceptional horse comfort in one versatile package.
Key Features
- Two-horse straight load design
- All-aluminum frame and construction
- Extruded aluminum floor
- Dexter torsion axles
- Individual access doors for each stall
- High-density horse armor wall lining
- Airflow dividers with stall pads
- Rubber flooring in horse area
- Large sliding windows with bar guards
- Roof vent for each stall
- LED stall lighting
- Rear ramp with upper tail doors
- Spacious front dressing room
- Removable saddle racks and bridle hooks
- One-piece seamless aluminum roof
- Lightweight, durable, and corrosion resistant
The ES-21-ST is the ideal choice for horse owners looking for the safety and stability of a straight-load trailer combined with premium features, durable construction, and the quality craftsmanship that define every Bar-M trailer.
Floorplan
Spec Drawings
Standards
Frame and Structure Standards |
|---|
| (4) Steel wheels & (1) steel wheel for spare (15" LR D). Spare tire installed in the dressing room. |
| Aluminum frame |
| Aluminum side wall posts and aluminum roof bows. Side wall posts are 1.5" deep |
| Dexter torsion axles (3,500 pound is standard) |
| Electric brakes on all axles |
| Exterior aluminum skin (White is standard. Extruded sides is an option). |
| Extruded aluminum floor |
| Flooring cross members (commonly on 12" centers). |
| One piece, seamless aluminum roof (Roof bows commonly on 16" centers) |
| Triple tube tongue structure |
Dressing room |
|---|
| (1) Brush box. Installed on dressing room door, down low |
| (1) Removable saddle rack with (1) saddle seat for every horse stall |
| (1) Set of eight bridle hooks. Installed up high, on the partition wall in tack room |
| Break-away battery box with charger |
| Custom built camper door with 20"X20" window (no bar-guards) |
| Dome light in dressing room is on an individual switch and powered by the recharge line |
| Rubber on the dressing room floor |
| Spare tire is installed in the dressing room |
Horse area |
|---|
| (1) Slim-line LED stall light per stall installed in cove with exertional switch |
| (1) Two way roof vent per stall |
| (2) 32 1/2" X 82 1/2" access doors with 20"X20" window. (1) Road side and (1) curb side @ head of each stall. |
| (2) inside tie rings per horse |
| (4) Butt and Breast bars with pad (ES-21-ST Only) |
| 44"X20" Slider window with bar guards. (1) on road side and (1) on curb side at horse area. |
| Air flow dividers with stall pads on each side or every divider |
| High density horse armor 48" high on all walls in horse area |
| Large slider window with bar guards. (1) on road-side and (1) on curb-side at horse’s hip area (ES-21-ST ONLY) |
| Rubber Vet mats on floor in horse area |
| Slider window in each of the upper rear doors (ES-21-ST ONLY) |
| White aluminum sheet above horse armor lining on partition wall |
Exterior standards |
|---|
| (1) Exterior horse tie per stall |
| (1) LED ID bar centered on rear hoop up high (Has left, right and tail lights) |
| (1) set of LED turn/stop/tail-lights, low on each side of unit |
| (1) Single load light located over the rear load door (powered by recharge line) |
| (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 |
| Aluminum fender with top side mounted fender light |
| Bar-M Logo installed on curb side door down lower curb side of door |
| Bar-M logo on top-rail. Both road and curb sides near the rear of the trailer on the top rail |
| Complete automotive style wire harness |
| Diamond plate nose guard 16" high |
| Door hold back on each of the rear doors and (1) @ dressing room door |
| Keyed camper door style latch on each access door and dressing room door (ES-21-ST ONLY) |
| Large Bar-M nose decal. Centered on unit, up high |
| LED outside load light over rear loading area |
| License plate light and mounting bolts |
| Rear entry ramp with tail doors above. (ES-21-ST ONLY) |
| Red/White conspicuity tape along the lower side of road and curb side walls (in sections) |
| Running boards on road and curb sides. |
| Three piece skin colored nose sheet. Sheets are riveted at the seams |
| Top crank jack with wheel |
Popular Options
Popular options |
|---|
| Add a 12 Volt deep cycle battery with charging diode and battery box that is mounted in the dressing room (ES-SL-Only) |
| Add a Bauer cam back lock box |
| Add a walk-thru door in the partition wall between the horse area and the dressing room |
| Add an additional brush box to the dressing room |
| Add an additional Load light centered over the curb side horse area |
| Add an additional Load light centered over the road rear door |
| Add an additional Load light centered over the road side horse area |
| Add an additional saddle seat to the saddle rack. |
| Add an additional set of (8) bridle hooks in the dressing room |
| Add an electric jack, battery box and battery |
| Add Werm flooring to the horse area |
| Black skin upgrade from white skin |
| Charcoal skin upgrade from white skin |
| Extruded slat in the horse area. |
| Line and insulate the ceiling in the horse area. |
| Upgrade to aluminum wheels (does not include the spare) |
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.
