New trailer build

Boat trailers and trailering

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dbug10
Posts: 1
Joined: Sat Apr 15, 2017 3:56 pm

New trailer build

Postby dbug10 » Sat Apr 15, 2017 4:07 pm

Ok I am a newbie to this site and might I say it is an amazing and very informative site. I have a question about building a new trailer for my STV fiberglass 19' 3 sponson tunnel drag boat. The trailer it sits on now is a single axle C channel frame and I am wanting to build a tandem axle rectangular tube trailer and my question is this what size tubing should I use ? The current trailer is 1.5" x 4" C channel and I dont know if I shoud go with 2 x 3 or 2 x 4 tubing ? the boat is pretty light the hull all its contents and the outboard are between 950 and 1100lbs. I really think 2 x 3 x .125 would probably be what I would need but I am not 100% sure and would like some input from others so if anyone can give me some advice please do so

thanks
James Sanderson

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hoodman
Posts: 1806
Joined: Thu Nov 10, 2011 8:48 am
Location: Lafayette, IN

Re: New trailer build

Postby hoodman » Sun Apr 16, 2017 5:52 am

I would get the book if I were you. Then maybe see if there is a trailer design in the catalog that will suit you.

http://www.boatdesigns.com/mobile/How-t ... fo/12-432/

Nova SS
Posts: 2434
Joined: Sat Nov 15, 2003 10:42 pm
Location: Stirling, ON

Re: New trailer build

Postby Nova SS » Sun Apr 16, 2017 7:50 am

Yes Glen-l has several different trailer sizes you can choose from I am sure one of them will be perfect for your boat.

rleete
Posts: 139
Joined: Sun Sep 18, 2016 9:22 am
Location: Rochester, NY

Re: New trailer build

Postby rleete » Sun Apr 16, 2017 8:20 am

At 1/8" wall, 2x3 would be plenty strong enough.

I just designed a waste water tank stand for work, and used 2x2 tubing with .090 wall thickness. That tank holds over 500 gallons.

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Bill Edmundson
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Joined: Wed Nov 23, 2005 6:45 am
Location: Birmingham, AL, USA
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Re: New trailer build

Postby Bill Edmundson » Sun Apr 16, 2017 9:10 am

Are you looking at aluminum or steel? If I was home I could compare the choices. For a tandem trailer you will need very light springs.

Bill
Mini -Tug, KH Tahoe 19 & Bartender 24 - There can be no miracle recoveries without first screwing up.
Tahoe 19 Build

TAB
Posts: 81
Joined: Tue Aug 09, 2016 3:22 pm
Location: OR

Re: New trailer build

Postby TAB » Mon Apr 17, 2017 3:12 pm

personally I would go with 4.


you will find that a lot of stuff is made too go on 4" c channel. so things like tire holders and jacks can be installed easily.

Jester97
Posts: 1
Joined: Thu Jul 26, 2018 4:41 am

Re: New trailer build

Postby Jester97 » Thu Jul 26, 2018 5:30 am

Any update on this build?


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