Different Boat Trailer Parts to Consider When

You've finally taken the big step and purchased your own boat!  However, unless your boat remains permanently docked, you will likely now need a way to transport it between your home or storage location and the object of your recreation (lake, river, or ocean). Boat trailers come in a variety of sizes and with many different options, all depending on the size of your boat, the size and load capacity of your towing vehicle, and the type of boat you have.  It is important to know your options and decide what you need before you go to purchase your boat trailer. 
The most important factor in buying a boat trailer is ensuring that the weight capacity of the trailer is great than the weight of your boat.  Towing a boat that is too long or too heavy for your trailer will eventually wear down the axles and put too much strain on the tires and the rest of the trailer. This could eventually result in your boat trailer breaking down without notice.  Every trailer has a Gross Vehicle Weight Rating (GVWR).  By federal law, the entire weight of your load, including the trailer, the boat, the boat's gas, and any other items, must not exceed the GVWR.  A good rule to follow is to load your trailer to no more than 85% of GVWR just to ensure that you don't do unnecessary damage.
Once you've determined the necessary size and weight of your trailer, you have several different options when it comes to boat trailer parts.  You must next decide if you want a single axle or tandem axle trailer.  Tandem axle trailers handle better than single axle trailers, particularly with larger boats.  They also have larger tires, making for a smoother ride.  However, they are significantly more expensive than single axle trailers. 
Next, you need to decide if you want a submersible or bunker trailer or a roller trailer.  Submersibles are harder to maintain but easier to maneuver than roller trailers, which should really only be used by someone extremely experienced.  They also cost less than roller trailers.
Finally you have to decide if you want or need brakes for your trailer and why kind will be best suited to your needs.  Smaller capacity trailers don't generally come with brakes and most don't need them.  The exception to this is if the tow weight of your load is very close to the tow capacity of your vehicle.  If the tow capacity of your trailer is greater than 1,500 lbs, then you will need trailer brakes.  You can choose either electric brakes, that work in conjunction with the tow vehicle's brake system, or surge brakes that help the trailer slow down whether or not the tow vehicle is braking.