6′ x 12′ – 6000# / 7000# – Utility Trailer Plans
6′ x 12′ – 6000# / 7000# – Utility Trailer Plans
DIY Blueprints for a beefy 6 x 12 HD single axle Utility Trailer. This is a heavy duty version of our 6′ wide trailer that has a lot of options – including a 6000 lb or 7000 lb Axle capacity choice.
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$ 21.99 - Complete Plans
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Description
Description
An HD (Heavy Duty) version of our 6 x 12 Utility Trailer with options for strength. Build at 5200 lbs, or 6000 lbs, or 7000 lbs axle capacity. Build it for the capacity you need. This is a big, strong trailer designed and fully engineered for action.
The plans include lots of options, from sides options to tailgate options, for customization to build it to meet your needs. Some of the options are in the images on this page. It’s your trailer, so build it to perform, we’ve already done the design to make it last.
One possible set of options shown in this image. While short sides like these are an option, they are not required for our 6 x 12 HD Utility Trailer. The frame is strong so the base model is a flatbed. See below in the tabs for a similar image with different options and a flat deck.
The trailer can build with the drop axle as above for a low deck height, or make it taller with a straight axle. That choice is yours. Build it better, stronger, and more stable, than you can buy it!
For a lighter duty version of this trailer, see the 6 x 12 – 3500 lb. plans.
A slightly shorter version (same capacity) is the 6 x 10 – Heavy Duty.
Specifications
Specifications
6′ X 12′ – 6000# / 7000# – Utility Trailer Plans

- Complete Engineered 6 x 12 Utility Trailer Design.
- Single axle, leaf spring design.
- Has 6′ x 12′ nominal bed size. Actual size is slightly larger, see below.
- 6000 lb. or option for 7000 lb. axle for heavy duty trailer capacity.
- Welded steel trailer frame for strength and robustness.
- Build the fold-down tailgate and ramp option.
- Includes multiple options for sides and for different trailer bed materials.
- Try the hidden / removable ramp option.
- Add tie-down locations, with options given, as many as you want.
- Includes plans for a motorcycle stand.
- Download the drawings and instructions.
More About The Design Features
More About The Design Features
The trailer plans (aka blueprints) include all the information to build it — not only the trailer, but many choices for customization are included. Here is a little more detail about the design features.
- * The 6 x 12 utility trailer plans give a deck size 2 inches wider than 6 ft. and 3.5 inches longer than 12 ft. (This allows a true 6 ft load width, and true 12 ft load length clearance.)
- Trailer length, including the tongue, is 198 inches or so depending on options.
- Total width is 97-ish inches. Actual width depends on component choices (axles, tires, fenders).
- Deck height depends on components — from 18 inches up. (Height shown is approximately 19 inches.)
- Options for Max load capacity — either 6000 lbs.* or 7000 lbs.* which includes the weight of the trailer.
- Again, options will change trailer weight. The flatbed version is 900 lbs – 1000 lbs. Options like decking choice, sides (or not), tailgate or toolbox, etc. will increase weight.
- Blueprints have many options. Some are mutually exclusive, and not all options appear in the pictures.
- We encourage options and customization to meet your exact needs. To assist with that, these 6 x 12 Utility Trailer Plans include customization ideas for special uses — from ATV & motorcycles, to trash or furniture or landscape moving. Feel free to add customization of your own.
6 x 12 Utility Trailer Plans Details:
This trailer is beefy as a flat bed, or with full sides and a top. We provide the solid foundation, and you build up the options for the trailer you want.
Maximize Your Project
Plans from Mechanical Elements are an awesome start to a great project. Here are even more resources!
First: For more info, please read: What's In The Plans? and What Makes Our Trailer Plans Better?
Second: Purchase plans with the "Add to Cart" button, then right after payment, a digital copy is ready to save to your computer. Please see this article for answers about getting the plans.
Third: We have many articles to help with trailer building. Just type a question in the Show Me bar (top of this page), then press "GO". Or, for simple browsing, visit Articles from the Mechanic.
Reminder:
Trailer building requires metal working skill and tools for things like cutting, drilling, and accurate set-up, as well as welding skill. Strength, durability, and enjoyment depend on building the trailer well. Build it well, then Enjoy the Finished Project !!
Notes for Success
* Trailer load capacity depends on all the parts and materials, as well as the craftsmanship in building. All Mechanical Elements trailers are engineered to perform as stated when built as defined with proper care in construction – including parts, material, construction techniques, weld integrity, assembly methods, and finishing. Capacity for this trailer also requires proper choices for parts such as the hitch, axle(s), wheels, tires, safety chain, decking, bolts, pins, etc. Please make sure component load capacities match or exceed the trailer total capacity. Do not exceed manufacturers limits.
For trouble-free trailer life, think care and safety. Please select fastening methods to handle how and where the trailer will operate – including vibration, proper fastener types, bolt grades, torques, and nut types (like lock nuts). Then, be smart about loading the trailer, load distribution, tire pressure, tire condition and the mechanics of towing. We want you safe to enjoy your trailer for a long time ahead. Always use proper safety and securing equipment when loading and towing a trailer.
Thank You — The Mechanical Elements Team
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