There are many people that would love to build their own trailer and it's really not that hard. You can build a basic trailer for little money and be able to haul all of your stuff around if you want to.
The first thing that you will need is all of your supplies. You should have them all laid out for you so that you know that you have what you need. Make sure that you have measured all of your wood pieces as well so that they will all fit together well. Basically you will need to measure the length of what you want for your trailer and the width that you want. Remember you are just making a basic trailer with an open top.
You can now start putting your pieces together. You will want to have your plywood baseboards ready. All you will need to do is bolt these boards to the metal parts of your base trailer. Most of the time, they will have metal rods that go width-wise on your trailer. This is so that the baseboards that you install will attach easily and will have some surport. Once they are bolted on, you can move on to the next step.
Now you can work on adding your sides to the trailer. The easiest way to do this is to take your screwdriver and screw the side boards to the baseboard. This will mean that you will have to have what are called L brackets. One end will connect to your sidewalls and the other will connect to the baseboard. This will secure it to the trailer and keep your walls from falling off. Remember that you only need around 5 inches of side boards when you are making a basic trailer.
The next thing that you will need to do is connect the walls of the trailer together. This is also done with L brackets. You will use one end on each of the sideboards connecting them at each end to each other. This will secure the boards to each other as well as to the baseboard.
Make sure that everything is good and tight. All you have to do once it's been put together is make sure that it is tight so that your things don't fall out of the trailer. You might have to tighten them again in a few months, but it's far cheaper than buying a trailer that you can make on your own.
Add the lights. The last thing that you will need to do is add the trailer lights on. This is pretty easy really. You attach the lights onto the back of the trailer so that the people behind you can see them. Attach the wires to a generic wiring harness and then it will plug right into your trucks trailer light hook up when you are using it. It's as easy as that! Just make sure that you leave enough room for the trailer to turn and not pull the cords out of the harness. Other wise you will be stuck doing it all again.
Make sure that you follow your states codes and that you have your trailer inspected if it's required in your state.