1/14 Scale Custom Aluminum Flatbed Trailers
I designed my own line of flatbed trailers called CoastWay, to fit Tamiya’s 1/14 scale trucks, such as the King Hauler and Knight Hauler. The main reason was because I didn’t like what was currently available on the market, most of them were not to the correct scale.
I have designed these trailers from the axles up, including the axles and airbag system. I designed my own DOT bumpers and frames as well. The only thing on these trailers not designed by me are the wheels and support legs.
One of my goals was to have these trailers look scale in their appearance, which was hard to find with the stock Tamiya trailers currently available.
This meant the correct height between the underside of the trailer and the tractor tires.
48′ Spread axle above and 53′ tri-axle below
Many trailers currently offered on the market sit much too high, which I didn’t like. The reason they all sit too high is because of the automatic 5th wheel couplers attached to the 5th wheel plate.
My trailers support legs work just like the real ones do. They are manually operated which means no thick auto coupler making the trailers sit way too high. I have never operated a 1:1 flatbed semi trailer that automatically snapped the landing gear up when I backed under it in real life. They are all manually operated.
It also meant the correct width overhang for a 102″ wide trailer. Full size 1:1 trailers overhang the tractor duals by 3″ on each side. My trailers overhang a Tamiya truck’s dual wheels by .22″ on each side which is scale.
My trailers are built to 1/13.5 scale which is what 1/14th Tamiya semi tractors actually are. I have tried to build my trailers to scale in width, height, and length, based on a full size trailer’s dimension of 48′ long and 102″ wide.
All my trailers come with led marker lights and led taillights and hidden wiring . Wiring is completely enclosed between the the two decks along with an enclosed battery.
The LED lights have their own 7.2 volt battery mounted in between the frame rails in an aluminum battery box with a toggle switch. This makes for a very neat and clean underside. Trailer lighting is independent of the truck, trailer will have marker and taillights regardless of what you have on your truck.
Note: Battery is not included in price.
The suspension is a modular air bag trailing arm design. It is designed to be sold separately if you are building your own chassis. Its design also makes it easy to transform one of my trailers from a closed tandem trailer, to a spread axle, or even a triple axle trailer.
It is just a matter of taking a couple of bolts out and sliding the modular suspension to where you want it mounted, and for a tri-axle simply add another suspension module between the existing spread axle units.
Independently turning axles are housed in a brass and aluminum axle tube assy. with pressed in bearings, axle shafts are 5mm in diameter, and outer axle tubes are 1/2″ diameter.
Trailers are built out of 100% aluminum, including the wheels. The only thing not aluminum are the nail strips on the deck, and the plastic support legs. All hardware is metric, low profile hex head hardware where possible.
Optional under deck Aluminum tool boxes are available for $59.00 per set. They are available in two sizes.
Trailers come with DOT safety tape on the sides and rear. You won’t find these trailers anywhere else as they are all my design.
Trailers measure 42.80″” long and 7.55″ wide, which is based on a 1:1 trailer’s dimensions of 48′ x 102″.
Click on the menu buttons for specifications and pricing on the 48′ spread axle or the 48′ tri-axle trailers.
Here is a new flatbed (above) ready to be delivered to a customer.