4′ × 6′ Off-Road Trailer Plans – 2,000 lb GVWR

Product Overview

Build your own 4′ × 6′ Off-Road Trailer with the professionally engineered Off-Road Trailer Plans. Designed for a maximum 2,000 lb Gross Vehicle Weight Rating (GVWR), this compact single-axle trailer is built to follow your Jeep, SUV, side-by-side, or other 4×4 vehicle on your next camping, hunting, overlanding, or off-road adventure.

The finished trailer features an actual bed size of approximately 4’4″ wide × 6’3″ long, allowing it to carry full 4-foot-wide cargo while providing additional storage space compared to many competing designs. Builders can customize the trailer with higher lift options, larger tires, permanent or removable sides, an opening top, tongue toolbox, removable loading ramp, roof rack, rooftop tent, solar equipment, storage systems, and many other accessories to create the perfect adventure trailer.

Engineered around a rugged welded steel frame with a heavy-duty leaf-spring suspension, the design provides excellent ground clearance and durability while remaining compact enough to tow behind most off-road vehicles. Whether you’re building a camping trailer, hunting trailer, overlanding trailer, expedition trailer, or utility trailer for backcountry adventures, these plans provide a strong foundation that can be customized to fit your specific needs.

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Complete Plan Package Includes

Plan Model: Mu46SS20X (4x6offroadLT)

• 17 pages of detailed engineering drawings
• 12 pages of illustrated instructions, material lists, purchased components lists (BOM), engineering considerations, and practical building guidance
• Complete Material Cut List
• Purchased Components List (BOM)
• Trailer Frame Construction Details
• Axle, Suspension, and Coupler Installation Information
• High-Clearance Lift Configuration Options
• Bed Size Customization Guidelines
• Side Panel and Opening Top Options
• Optional Removable Loading Ramp Design
• Tongue Toolbox and Storage Options
• Illustrated Construction Techniques and Practical Building Guidance

Steel, axle, suspension, coupler, wheels, tires, lighting, decking, hardware, and fabrication materials are NOT included with the plans. A matching 4′ Off-Road Trailer Parts Kit is available separately.

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Available Plan Formats

Instant PDF Download

Download your plans immediately after checkout and begin preparing your build right away. The downloadable ZIP file contains the complete engineering drawing package, illustrated instructions, material information, purchased components list (BOM), engineering considerations, and supporting documents.

Professionally Printed Paper Plans

Prefer working from paper in the shop? Choose our professionally printed plan package.

• Engineering drawings printed on 11″ × 17″ sheets for improved readability
• Instructions printed on standard 8.5″ × 11″ pages
• Shipped flat — never rolled or folded
• Free shipping within the lower 48 states

Important: Printed engineering drawings are provided for reference during construction and should never be scaled for dimensions. Always use the dimensions and measurements provided within the plans.

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Adventure-Ready Off-Road Trailer Design

The Mu46SS20X is engineered for builders who want a compact, lightweight trailer capable of following their tow vehicle beyond the pavement. The plans include numerous builder-selectable options that allow you to customize the trailer for camping, overlanding, hunting, trail riding, or general off-road use.

Add larger off-road tires, increase ground clearance, install storage systems, mount recovery gear, fuel cans, water tanks, rooftop tents, solar panels, or other accessories to create a trailer that matches your adventures. Proper fabrication, welding, material selection, component installation, and load placement remain essential to the safety, durability, and long-term performance of the completed trailer.

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Customizable Off-Road Trailer Options

• High-Clearance Lift Options
• Larger Wheel and Tire Configurations
• Adjustable Bed Width and Length Guidelines
• Permanent or Removable Side Options
• Opening Lid / Top Configuration
• Optional Removable Loading Ramp
• Tongue Toolbox Option
• Roof Rack and Rooftop Tent Compatible Design
• Fuel, Water Tank, and Storage Mounting Options
• Accessory Mounting Locations for Recovery Gear and Camping Equipment

The Mu46SS20X was designed to be customized. Whether you’re building an overlanding trailer, camping trailer, hunting trailer, expedition trailer, or utility trailer, the plans provide numerous options while maintaining the strength of the original engineered design.

Thinking about modifying the trailer dimensions? Read When Safe to Customize the Plans before making structural changes to the engineered design.

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Matching Trailer Parts Kit

Save time sourcing components with our matching 4′ Off-Road Trailer Parts Kit. Designed specifically for these plans, the kit groups together many of the major trailer components needed for your build.

View the Matching 4′ Off-Road Trailer Parts Kit

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Professionally Engineered Plans

These trailer plans were professionally engineered by Synthesis Engineering Services. The engineering package evaluates the trailer frame, tongue structure, suspension mounting, axle placement, load paths, structural connections, and overall frame geometry to provide a durable off-road trailer designed for years of dependable service.

As with any trailer project, proper material selection, fabrication quality, welding, assembly, maintenance, loading practices, and compliance with applicable laws remain the responsibility of the builder.

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Recommended Builder Experience

Beginner to Intermediate. Builders should have basic welding, metal fabrication, and trailer assembly experience. Familiarity with axle installation, suspension assembly, coupler installation, and 12-volt trailer wiring will help ensure a successful build.

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Understanding Trailer Weight, GVWR, and Payload

These plans are engineered for a maximum 2,000 lb Gross Vehicle Weight Rating (GVWR). GVWR represents the maximum allowable weight of the completed trailer and everything carried on it, including camping equipment, cargo, accessories, and the trailer itself.

The completed trailer weight varies depending on the options selected during construction. A minimal flatbed configuration without decking weighs approximately 400 lbs, while additional equipment such as larger tires, lift options, side panels, rooftop tents, storage systems, toolboxes, fuel cans, water tanks, racks, solar panels, and other accessories will increase the finished trailer weight and reduce available payload.

Available payload can be estimated using the following formula:

GVWR − Actual Completed Trailer Weight = Available Payload

For the most accurate payload calculation, weigh the completed trailer on a certified vehicle scale after construction. Always stay within the ratings of the trailer frame, axle, suspension, wheels, tires, coupler, hitch, and all installed components.

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Frequently Asked Questions

What is included with these trailer plans?

Each plan package includes professionally engineered drawings, illustrated step-by-step instructions, material cut lists, purchased components lists (BOM), engineering considerations, and practical building guidance to help you complete your off-road trailer project.

Are trailer parts included with the plans?

No. The plans include the engineering documentation only. Steel, axle, suspension, coupler, wheels, tires, lighting, decking, hardware, and other trailer components are sold separately. A matching 4′ Off-Road Trailer Parts Kit is available separately.

Can I customize the trailer?

Yes. These plans were designed with customization in mind. Builders can choose options such as increased ride height, larger tires, permanent or removable sides, an opening top, tongue toolbox, removable loading ramp, roof rack, rooftop tent, storage systems, and many other accessories. Before making structural modifications beyond the included options, we recommend reading When Safe to Customize the Plans.

Can I change the trailer dimensions?

Yes. The plans include guidance for making small adjustments to the bed dimensions while maintaining the integrity of the engineered design. Larger modifications should always follow proper engineering practices.

Are the plans available as both PDF and printed copies?

Yes. Choose between an instant PDF download or professionally printed paper plans. Printed plans include 11″ × 17″ engineering drawings and 8.5″ × 11″ instruction sheets, shipped flat with free shipping within the lower 48 states.

Can I build this trailer with larger off-road tires?

Yes. The plans include lift options and are intended to accommodate larger off-road wheels and tires if desired. Ground clearance, trailer height, and final appearance will vary depending on your selected tire and suspension configuration.

What builder experience is recommended?

Beginner to intermediate. Welding and fabrication experience is recommended. The plans provide detailed drawings and illustrated instructions, but builders should be familiar with basic welding, trailer assembly, suspension installation, and 12-volt trailer wiring.

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Why Choose Johnson Trailer Parts?

Johnson Trailer Parts has been helping customers build and maintain trailers since 2000. We offer professionally engineered trailer plans, matching trailer parts kits, trailer axles, suspension systems, hydraulic components, lighting, and thousands of trailer parts backed by knowledgeable customer support before and after the sale.

Whether you’re building a compact off-road camping trailer, an overlanding expedition trailer, or a lightweight utility trailer for your next adventure, we’re committed to providing quality products, dependable service, and the technical support you need to build with confidence.

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Questions?

Need help selecting the right trailer plans or matching trailer parts kit? Our team is happy to help.

Johnson Trailer Parts
Call or Text: (602) 292-9690
Email: sales@johnsontrailerparts.com