8.5′ x 20′ Deck Over Trailer Plans – 10,400 lbs Capacity
Build your perfect trailer with our 8.5′ x 20′ Deck Over Trailer Plans – 7,000 lbs capacity. Detailed and versatile trailer plans complete with step-by-step instructions.
$44.99 – $54.99
Build your perfect heavy-duty flat deck trailer with our 8.5′ x 20′ Deck Over Trailer Plans – 10400 lbs, designed by Synthesis Engineering. Created for strength and versatility, this trailer can be customized to meet your specific needs, offering a robust 10,400 lbs capacity. The plans include detailed instructions and multiple configuration options to ensure a perfect build.
A trailer parts kit for this 8.5′ x 20′ Deck Over Trailer Plans will be available soon on our website. If you need the kit sooner, please contact us.
Specifications:
- Model: 8×20-104ds-dtrailer (Mdo820DS104)
- Bed Size: 8’6″ x 20′ nominal (see specs tab for more information)
- Axle Type: Tandem axles with leaf springs
- Load Capacity: 10,400 lbs total (trailer and full cargo)
- Frame Material: Welded steel with box tube main beams
- Width at Fenders: 102″
- Trailer Weight: Approximately 2,100 lbs (without ramps, decking, or sides)
Design Features:
- Deck Dimensions: Full legal limit width of 8’6″ and a 20′ long deck.
- Capacity: Tandem axles provide a robust 10,400 lbs capacity.
- Ramp Choices: Multiple options for ramp length and strength to match your needs.
- Versatile Bed and Tie-Down Options: Includes options for front stop rail, side rub rails, and stake pockets.
- Detailed Plans: Full set of drawings with illustrated step-by-step instructions.
- Customizable Design: Modify the trailer with various sides, ramps, hitch styles, and deck styles.
Strength:
Our flat deck trailer plans prioritize strength and durability with a welded steel frame and box tube main beams. The robust design ensures the trailer can handle heavy loads and withstand rigorous use, making it perfect for both everyday tasks and more demanding transport needs. These plans were engineered by Synthesis Engineering, ensuring top-notch quality and performance.
Customization:
Customize the trailer to your specific requirements. Our plans provide guidance on adding features like longer or stronger ramps, sides, and various deck styles. The flexibility in design allows you to create a trailer that perfectly suits your needs. For more information, check out this article.
Delivery:
- PDF Download: Instantly download the 8.5′ x 20′ Deck Over Trailer Plans – 10400 lbs Capacity in PDF format, printable in various sizes, or viewable on your device. Orders can be downloaded immediately after purchase from our website or confirmation email.
- For convenient download, the Trailer Plans are provided in a .ZIP file. If needed, you can get a free PDF reader from Adobe.com and a free ZIP utility from WinZip.com.
- Paper Copy: Receive the drawings printed on 11″ x 17″ paper and the construction instructions on 8.5″ x 11″ paper, all with free shipping.
Support:
If you accidentally delete your file, contact us for assistance. Our team is available to help you safely modify your trailer and provide guidance to ensure your build is successful.
- Width and Length: The trailer is 8 feet 6 inches wide (legal width limit), including rub rails, with a bed length of 20 feet 3.5 inches. The overall length, including the tongue, is 301 inches (slightly over 25 feet), which may vary depending on selected options.
- Bed Height: Typically around 35 inches, but can vary with tire size, spring shape, shims, load, and other options.
- Load Capacity: The trailer has a maximum capacity of 10,400 lbs (combined axle rating), using tandem axles rated at 5,200 lbs each. This capacity includes the trailer weight with all options.
- Suspension: Primary design features leaf springs, double eye style, with an equalizer. Slipper type springs are also acceptable, but the design is not intended for independent torsion axles.
- Trailer Weight: The base flatbed trailer weighs approximately 2,100+ lbs, including an estimate for axles and wheels, but without decking, sides, or ramps. Additional options like sides, decking choices, and other features will affect the total weight.
- Options Included in the Plans:
- Deck Options: Various materials and connection options, with or without wheel covers.
- Sides: Choose between permanent or removable side options. Variations include tie-downs, rub rails, and stake pockets.
- Ramps: Select ramps that slide in and store under the deck (or not), and choose the ramp length and capacity.
- Front Rail and Tongue Tray: Options for a raised front rail and a tongue tray for special tools.
- Additional Features: Mounted toolbox, spare tire, and other functional options. Some options are mutually exclusive, so not all are shown in the plans.
- Included Materials: The download package includes a full set of drawings, illustrated instructions, and CAD files for laser or water jet cutting of the tail plate and other optional parts.
- Plan Quality: The plans are complete and detailed.
