hi folks, other than the number of axels,what gives a trailer its weight capacity rateing? my nieghbor wants to modify his 5x8,1000lb trailer so it can haul two atvs cross ways on it, thanks for any responces to this as i will be the one doing this work.

 

Just a suggestion. Have your friend take the trailer to a place that builds them. Ask how much it would cost to increase the load rating and what kind of modifications they would make to it. He gets the info from the experts, then can go home and do it himself.

 

My dad just finished building my trailer. 8x12 It will haul four quads tight fit or three quads very easily.
There are several factors that give a trailer it weight ratings. Axles, hubs, springs, tires, and spindles. The thickness and length of the axle will determine the rating. Do you know the axle rating? hubs, Tires, Spindles, and Springs each one should handle half the total weight of the trailer including intended cargo.

If you are making the trailer longer then you will need to move the axles further back to maintain the proper tounge weight. If you are making it wider then you may need to build a wider axle to keep the stability of the trailer.

If you are not familiar with what you are doing then take it to a trailer manufacture and have them adjust it properly. Spending a few hundred dollars so you don't ruin thousands of dollars in ATV's is money well spent.

 

FKNA has a great suggestion. Taking the trailer to a local company that builds them is a good idea. They will usually be able to beef up the trailer enough to do what you want.

You may also be able to accomplish increasing the load capability yourself by installing heavier springs and possibly axle/hubs along with higher rated tires. You can find all the parts you'll need at Northern Tool. The structural integrity of the trailer bed may be increased by installing stronger deck material. For example, if your deck material is 1/4 inch plywood, try replacing it with decking board and bolt it down securely. (usually 1-1/4 by 6) With the higher trailer weight, you may want to add cross bracing to the trailer tongue if there isn't any there now.

With that said, most quality trailers are over built and can handle higher loads than rated.