Ive done mine several ways- easiest way is what Big Lew says!, a lot of dry storage marina's will let you use their work racks for a fee or you can also find a regular boat railway. if not here is how I do mine and a couple of pix-
1st way and this is the way I normally do it- I put a 6x6 in the back of the yard up by the fence. I tie the stern of the boat with heavy line. I then pull the trailer two or 3 feet away and block the corners. I have jack stands now but have not always had them. Find your local bulkhead builder and ask him for some "caps" that have been cut off and they should give them to you. They work as good support. If you are putting it on grass I will put 2x8's or something under caps(or stands) to spread the load.Also under cinder blocks if you use them. When The trailer is about midway down the length of the trailer I will give the boat some keel support as well as more outer chine support. Make sure the boat is plenty stable before blocking up the keel. This is where I will use mostly cinderblocks with 2.4's and 2x6's on top of the blocks. You dont want to get the boat much higher than the trailer though, if you do this will make it much more difficult putting the boat back on. One other tip if you are shaky on using your truck to pull the trailer out , you can put the truck in nuetral, take the winch hook, disconnect it and run it under the first cross beam and back up to your bow eye. Now you are using your winch to remove the trailer, not the truck.
Be happy to let you use my jack stands if you are coming thru this area !
Here are some variuos pictures of mine. These first pix were done at the local boatyard by the guys that do it everyday- looks kind of scary but the boat is very stable. They have the benefit of holding the boat in the air while blocking it up.
[image]http://img.photobucket.com/albums/v404/MilesOffshore/seacraft%20pix/seacraft2005caps.bmp[/image]
[image]http://img.photobucket.com/albums/v404/MilesOffshore/seacraft%20pix/seacraft20051.bmp[/image]
this picture here has the pier /bulkhead caps I was talking about- sorry I cant find any more of my rig I use at the house. Hope this helps- Craig
