5′ x 8′ – 3500# – Torsion Axle Trailer Plans

5′ x 8′ – 3500# – Torsion Axle Trailer Plans

Designed specifically for a Torsion Axle, these 5′ x 8′ utility trailer plans include a 3500# capacity and many options to choose for making the trailer meet your needs. And, fully Engineered Blueprints, of course.

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$ 18.99 - Complete Plans

* Plans are in a computer document. You may Save them to your computer immediately after Payment.

Description

One of our most popular trailers sizes. This 5′ x 8′ – 3500# utility trailer has a Torsion Axle, yet it is just as tough and durable as it’s 5′ x 8′ Leaf Spring brother. Functions and options are similar, as is the strength. The size is popular because for many people it’s the perfect size. The design is a result of full engineering and design for an excellent trailer.

Plans have easy to follow, illustrated step by step instructions, with a list of materials and needed components. Then, there are options so you can build it the way you want it. We always recommend building and customizing to meet your needs.

These plans give you the basics, then you add the options to meet your needs. Start with the 5′ x 8′ – 3500# flat deck base, then create your masterpiece. Images on this page, and in the accordion tabs below, show many possible options, but not all. Decking options, like planks or plywood, and even options in how to fasten it down. Several sides options are also in the plans, from the low rail sides that are very popular, to tall solid sides.

It’s all up to you. Choose from the options in the plans, then add some of your own.

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We have alternate sizes — like 4×8 or 5×10 — if that works better.
If you prefer the leaf spring suspension on this 5×8, we have plans for that too.

Open “Alternate Sizes & Conversions” below to make this a Tilt Top Trailer.

Specifications

5′ x 8′ – 3500# – Torsion Axle Trailer Plans

5′ x 8′ is the Functional bed size (inside frame rails for 5′ cargo width).
3500 lbs. Total trailer capacity – with a Single, Torsion Axle.
Welded steel frame design.
Options for deck height range from 16 inches up. (Deck height shown in the images is 20″.)
Has design options for a building a Ramp, and Sides and More. See the images for a peek at some of the options.
Use the options to build it the way you want it.
While trailer weight varies with options, the minimal flat bed is approx. 600 lbs. Options drive weight up from there. See the FAQ on trailer weight.
Blueprints include a Motorcycle Rack design and lots of Tie-Down options.
Complete Drawings and Illustrated Instructions — many pages of great information.

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More About The Design Features

Plans include easy to follow, illustrated instructions, with a parts list, and recommendations for materials and components. Then, because it’s your trailer, we include many options for customizing.

Please see the images for several possible options in the plans. Or, add your own! We say build it the way you want it and make the trailer perfect for you. A top, sides or tailgate — maybe a ramp, a tongue mounted toolbox, tie-down bars, or something unique. Use these plans as a base, then customize it perfect.

Options with 5' x 8' - 3500# Torsion Axle Trailer Plans — Since there are many options, you can build the trailer the way you want it. This is one set of options with the 5′ x 8′ – 3500# Utility Trailer Plans.

5′ x 8′ – 3500# Torsion Axle Trailer Technical Information:

True trailer bed size is 5 ft. 2″ wide by 8 ft. 3″ long — for a full usable 5′ x 8′ deck size, even with added sides. We think the width of the cargo is a better measure than the actual width of the trailer.
Overall length — including the tongue — is ~147 inches. (Can vary with options.)
Trailer bed height depends on design options including the torsion arm start angle. It can range from 16 inches up. (Bed height in these images is 20″.)
Make even more ground clearance using spacer blocks between the frame and the axle.
Max capacity (depending on options) is 5′ x 8′ – 3500# * including the trailer weight.
True Torsion Axle Utility Trailer Design — Engineered for long life — even when fully loading the torsion axle.
While the plans show the build steps, there is always more to learn. Check out the trailer and construction tips to get your trailer built.

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Alternate Sizes & Conversions

Not Quite The Perfect Trailer? Check These Too.

Same Size, Leaf Spring Axle – 5×8 – 3500 lbs Utility Trailer
One size Narrower – 4×8 – 3500 lbs Torsion Axle Utility Trailer
Or, a size Longer – 5×10 – 3500 lbs Torsion Axle Utility Trailer
One Size Wider – 6×8 – 3500 lbs Utility Trailer

More trailer sizes and variations are available. See All Trailer Plans.

Make It A Tilt Top?

Tilt Conversion If you want this trailer as a Tilt Top, we have Plans for the Conversion. They show how to make this trailer with a tilting top, like in the image.

Conversion plans are sold separate. You will need both the above Trailer Plans and these Tilt Top Conversion Plans.

$ 9.99 - Complete Plans Add To Cart

Maximizing 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