ES-SL Slant Load Horse Trailers
Built for horse owners who value dependable performance, practical features, and lasting durability, the Bar‑M ES‑SL Series delivers an exceptional lineup of slant load bumper pull horse trailers designed to make hauling safer, easier, and more enjoyable. Available in both 2‑horse and 3‑horse configurations, the ES‑SL combines rugged all‑aluminum construction, thoughtful design, and everyday functionality into one dependable package.
At the foundation of every ES‑SL trailer is a lightweight aluminum frame paired with an extruded aluminum floor and a seamless one‑piece aluminum roof. This durable construction helps reduce maintenance while providing the strength and reliability horse owners expect for years of travel and use. Built on Dexter torsion axles with electric brakes on every axle, the ES‑SL is engineered to deliver a smooth, confident towing experience wherever the road leads.
Inside the horse area, comfort and safety take center stage. High‑density horse armor lining, rubber flooring, airflow throughout the trailer, LED lighting, roof vents, and strategically placed tie locations work together to create a comfortable environment for your horses. Slant load stalls maximize interior space while providing the versatility and convenience many horse owners prefer for both short trips and long hauls.
Designed with convenience in mind, the ES‑SL incorporates large drop‑down feed windows, slider windows with bar guards, rear loading access, and well‑placed doors that make loading, unloading, and caring for your horses more efficient. Every detail is intended to provide the functionality horse owners need without sacrificing durability or ease of use.
The spacious dressing room offers practical storage for tack and equipment, helping keep essentials organized and within reach while traveling. Clean exterior styling, aluminum skin construction, diamond plate protection, LED lighting, and premium Bar‑M craftsmanship provide a professional appearance that looks as good as it performs.
Whether you’re headed to a horse show, trail ride, competition, training facility, or simply transporting horses close to home, the Bar‑M ES‑SL Series delivers the strength, comfort, versatility, and value horse owners can depend on for years to come. Available in the ES‑20‑SL and ES‑30‑SL models.
Models
Standards
Frame and structure |
|---|
| (4) Steel wheels & (1) steel wheel for spare (15" LR D). Spare tire installed in the dressing room (2 horse model) |
| (4) Steel wheels & (1) steel wheel for spare (15" LR E). Spare tire installed in the dressing room (3 horse model) |
| 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 on a 2 horse and 5,200 on a 3 horse) |
| Electric brakes on all axles |
| Exterior aluminum skin (White is standard. Colors and 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) inside tie rings per horse |
| Access door with drop down feed window, full height cam bar and locking hasp |
| Air flow dividers with stall pads on each side or every divider |
| Butt strap between tack wall and curb side wall over rear load door (ES-SL ONLY) |
| Chest strap over access door (ES-SL models with access door ONLY) |
| Cove covers to enclose the top rail on road and curb sides of horse area (ES-SL only) |
| Drop down feed window at head side of each stall (ES-SL ONLY) |
| High density horse armor 48" high on all walls in horse area |
| Radius, slider window at butt side of each stall. Includes bar guards (ES-SL ONLY) |
| Rear load door to have horse armor lining full height on inside (ES-SL ONLY) |
| Rubber Vet mats on floor in horse area |
| Rubber Vet mats on floor in rear tack area (ES-SL ONLY) |
| Side access door to have high density horse armor and white sheet above on inside (ES-SL models with access door ONLY) |
| Slider window in each of the upper rear doors (ES-21-ST ONLY) |
| Slider window in the rear curb side load door. Includes bar-guards (ES-SL 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 (ES-SL ONLY) |
| 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 |
| Drop down feed window hold down. (1) at each drop down feed window (ES-SL ONLY) |
| Full length cam bar on models with an access door in the front stall (ES-SL ONLY) |
| 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 docking bumper below the rear doors (ES-SL-ONLY) |
| Red/White conspicuity tape along the entire bottom side of road and curb side rear doors |
| 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 |
Tack room (ES-SL ONLY) |
|---|
| (1) Brush box. Installed on the rear road side door near the bottom of the door |
| (1) Rear tack wall hold back (used to hold the tack wall back when tack wall is collapsed |
| (1) Removable saddle rack with (1) saddle seat for every horse stall |
| (1) Set of eight bridle hooks. Installed on the road side wall in tack room |
| (1) Slim-line LED stall light installed on cove in the tack room area |
| Ply-felt on road side wall inside tack room area |
| Ply-felt on the inside of the road side rear door to the tack room |
| Tack room wall are collapsible |
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 3 tier aluminum blanket bar on the rear tack room door (ES-SL Only) |
| Add a Bauer cam back lock box |
| Add a lower divider (ES-SL Only) |
| Add a walk-thru door in the partition wall between the horse area and the dressing room |
| Add an access door in the first stall, head side. (ES-SL 2 Horse model only) |
| Add an additional brush box to the dressing room |
| Add an additional brush box to the rear tack (ES-SL Only) |
| 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 additional set of (8) bridle hooks in the rear tack (ES-SL Only) |
| 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. |
| Ramp behind full height rear doors (ES-SL Only) |
| Replace the full height cam bar on the access door with a camper door handle and butterfly latch (ES-SL Only) |
| Upgrade the butt window in the 1st stall (ES-SL Only) |
| Upgrade the butt window in the 2nd stall (ES-SL Only) |
| Upgrade the butt window in the 3rd stall (ES-SL Only) |
| 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.
