Unit details

Spartan Cargo 5×8 Single Axle Custom Enclosed Cargo Trailer – Black Poly (.080) w/ Single Swing Door & Black Mod Wheels

• Manufacturer: Spartan Cargo Trailers (Alma, GA)

• Configuration: 5′ x 8′ Single Axle (5×8 SA Base Build)

• Exterior Finish: Black Poly (.080 Semi-Screwless Siding)

• Rear Door: Commercial Single Swing Rear Door

• Ceiling Protection: Thermoply Ceiling Liner

• Running Gear: 3,500 lb Leaf Spring Idler Axle on Upgraded Black Mod Wheels

Engineered for mobile contractors, service technicians, courier operations, and weekend adventurers who demand commercial-grade build quality in an agile, fuel-efficient footprint. While entry-level trailers in the 5-wide class rely on paper-thin .024 skin, Z-posts, and economy hardware, this custom Spartan Cargo 5×8 is wrapped in premium Black Poly .080 composite metal hung semi-screwless, delivering a dead-flat, ripple-resistant surface that eliminates highway flutter and stands up to harsh daily road abuse.

Upgraded with an easy-swinging single rear swing door, this build eliminates the curb-space restrictions and back strain of a ramp door, allowing direct forklift or hand-loading in tight city alleys and driveways. Riding on a stout 3,500 lb leaf spring idler axle upgraded with radial tires on aggressive Black Mod wheels, and finished with an insulating Thermoply ceiling liner, this 5×8 delivers maximum durability, climate defense, and sharp curb appeal.

Key Specifications & Custom Options

• Tubular Frame & Chassis Backbone:

  • Mainframe: 3″ structural steel tube mainframe reinforced with full-height C-channel crossmembers.

  • Floor Crossmembers: 16″ on-center floor crossmember spacing for solid deck strength under concentrated loads.

  • Wall Uprights: 16″ on-center structural steel tubing sidewall posts (no lightweight hat posts or Z-bars).

  • Roof Bows: 16″ on-center structural steel tubing roof bows paired with a seamless flat Galvalume roof.

• Black Poly .080 Semi-Screwless Skin: Upgraded heavy-gauge Black Poly exterior metal hung semi-screwless for maximum impact resistance, thermal stability, and a smooth profile ready for company branding.

• Upgraded Commercial Single Swing Rear Door: Replaces standard ramp setups with a heavy-duty single rear swing door for rapid curbside access and zero rear-clearance issues in cramped parking lots or loading docks.

• Upgraded Black Mod Wheels & Radial Running Gear: ST 15″ 205 radial tires mounted on upgraded Black Mod steel wheels (replacing standard gray mod wheels) paired with a dependable 3,500 lb leaf spring idler axle.

• Climate & Interior Defense:

  • Upgraded Thermoply ceiling liner to reflect radiant solar heat and keep cabin interior temperatures controlled.

  • Commercial 3/4″ Stable Deck Plus engineered flooring paired with 3/8″ Stable Deck Plus interior walls for water, gouge, and scuff resistance.

• Aerodynamic V-Nose & Exterior Armor:

  • V-nose front design capped with a bright anodized aluminum front nose cap to reduce towing drag.

  • Slanted bright aluminum tread plate (ATP) front stoneguard paired with round aluminum tread plate fenders.

• Electrical, Lighting & Hitch:

  • 2″ A-frame ball coupler paired with a 2,000 lb A-frame tongue jack with sand foot.

  • Standard 4-way flat plug connection.

  • Flow-through plastic sidewall vents for continuous air exchange.

  • 12-volt interior LED ceiling dome light, complete exterior LED clearance package, and integrated LED tag light with bracket.

Contact us for a complete list of features and available options for this stock number! Description may contain factory features and specifications which are not available and are subject to change.