Boat Lift

BGibson421

Recruit
Joined
Feb 27, 2006
Messages
1
what an awesome website! <br /><br />Not sure if I'm in the right topic area but here it goes... <br />Does anyone know how to make a backyard boatlift or can you steer me to a website? I read in another forum that you could lift the boat by the transom and bow eyes but that seems like an awful lot of weight and stress on those areas. I am really leary on making a frame and using the eyes to lift with. The boat is 15 1/2ft with a 70 johnson OB on it. <br /><br />Even though the lake is only 15 minutes away, I still prefer to work on my trailer and hull at home. Besides If i get the boat to the lake, common sense tells me I wont give a crap about working. If I get her wet, I'll wanna play or fish. ;) <br /><br />Any suggestions are welcomed
 

Jcrain

Petty Officer 1st Class
Joined
Oct 7, 2004
Messages
210
Re: Boat Lift

Welcome to the forum, BGibson. Yup, this place is awesome and chocked full of info about pert near anything you need to know about boats. A lift would be a great way to get a boat off of a trailer. Have you thought about some webbed straps , run under the boat? <br />If I were to build it, I'd make a 4x4 post frame with a couple 2x8s nailed together for the headers where the hoists went.If you weld, or have welder buddy, a pipe frame should work, too. Make it high enough to where you could put some spreaders where the straps came up above the boat sides. That way, you wouldn't stress the sides of the boat. You could use two hand hoists, just alternate cranking between the two to keep the boat some what level. When the boat clears the trailer, pull it out from under the boat.<br />Oh, yeah, just to be on the safe side, use saw horses or some sort of cradle to put under the boat. Not good to leave it hanging if you are going to be under it, or if you plan to leave it off the trailer overnight.<br /> This might seem really simple, but you should get the basic idea. You could get really fancy and rig it to where both end crank up at the same tome. That isn't as difficult as it sounds, but I prefer the more basic designs.To do it that way, you'd really need an electric hoist, or be preparred to do A LOT of cranking. You'd also need a lot of cable. The hoist would have it's cable would around the main axle of the lift and the cables running down to the straps would also be wound around the main axle. As the hoist pulled its cable, it would unwind the main axle, which in turn would cause the cables connected to the straps to wind up on the axle, in turn lifting the boat off the trailer. To lower the boat, gravity would be the main factor and the electric hoist would act as speed control and brake.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Boat Lift

just built my self a new one. all is take is 6 4x4's 8' long made a U bolted the 2 side post to the cross piece. dug 2 holes stood it up and concreted around them (like a swing). attached a winch to each side with a 2" nylon strap connected to both of them. back the trailer under it, slip the sling under the boat start cranking the winch alternatly to keep the boat level. did the same thing for the bow, but use 1 winch and a couple of pullys, hook to the bow eye. then block it up. a one person job.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,074
Re: Boat Lift

BGibson, How often do you plan to use the lift? If it is once/twice a year, with that small a boat, just put it on blocks, do your work, and drop it back on the trailer. If you want to just work on the trailer, Tilt up the motor and you can drop the boat on the ground. Unless you plan to use the lift a lot, it isn't worth the cost or labor to build it.
 
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