Introduction and initial build concept

PINSTER

Observer
Hello ExPo,

First post, first trailer, first a lot of things. First off, I must start by commending some ridiculously talented work being displayed in this forum and the apparent talent behind them. I found the site a few weeks ago by googling "offroad trailer" and literally have not slept more than a few hours a night because I've been trying to get through the "builds" sticky. So I blame my insomnia and workplace low-productivity on y'all!

Anyway, wanted to introduce myself, as I have committed to starting a trailer build and would love to be a part of what's going on here. I'm a DIYer, proficient with most tools but no experience in welding. Have always tried to make things "better" but many times failed to do so. To me, it was always more about the process. A Texan, an outdoorsman, and have always found the most peace while building, doesnt matter what, anything really.

Long explanation on how I ended up here below...
This trailer idea all started when I ordered a conversion kit for my fishing kayak, a sail and outrigger set, which would effectively increase its weight to over 100lbs. I normally cartop the yak on a rack above the truck. The new configuration would need to be disassembled and then mounted every time I wanted to take the boat out. SO, I decided I needed a trailer. Originally I trolled CL for used boat trailers that I could easily mount a saddle on for the kayak. BUT, the more I thought about it, the less appealing it became. I'd have an eyesore of a trailer all the time and most importantly it would need to be heavily modified to even pull it where I wanted to take it....60 miles down rutted and soft beach, known as PINS (Padre Island National Seashore). Thus, the google search for "offroad trailer" because I figured there had to be others lifting trailers and rolling on big AT tires. AND then I found y'all, a community of jacked up hardcore trailer builders ("expedition" is the preferred term, i learned). Perfect, I thought. Two weeks later, maybe a hundred hours, midnight sketches, and a failed download of sketchup, I finally finish reading each build. A craigslist beater trailer just isn't gonna cut it now that my trailer-virgin mind has been tainted by what y'all have done! But could I, would I even be capable of such a project? Definitely outmatched in equipment, my dear table and miter saws cant help me out of this one.

Received the first step to the new "hobby" today. A Millermatic 211. Have acquired a few of the fundamental accessories and awaiting arrival of a few more.

I guess I needed to let that out. If you read through all of it, my apologies and gratitude!


On to the trailer concept: (I understand it does not fit true "expedition" status)
17-18ft enclosed hauler/camper shell on a strong frame with good clearance and matching track width/wheels to my Tacoma. The main objective is to haul two 16ft sailing kayaks, 3-5 day camping/fishing gear, water, gas, and ice. The idea is to be able to keep the kayak rig assembled, and utilize rollers to quickly load unload. Preferably with enough crawl space to sleep inside in bad weather. The trailer will only need to be capable of handling highway speed and slow speeds on soft sand. I'll try to scan some sketches as I cannot use sketchup...yet.

Preliminary configuration:
2x2 steel trailer frame
1x1 steel body frame
Alum or fiber wall panel
Ply floor glassed or sealed in some way
3500lb drop axle on long leafs w/ shocks and elect brakes

Tow Rig: 06 Tacoma dbl cab/longbed v6 trd with tow package. Mods: toytech 2.5 lift on 33" nitto terra grapplers


Haven't figure out a way to calculate the estimated weight yet, but will wait to crunch numbers until after I get it in sketchup

Good night!
 
Last edited:

cwheeler

New member
Can't wait for pics. I also just started a utility bed trailer, for the purpose of camping on PINs. Have grown up growing down there, now need more room to haul all the gear and 3 dogs.




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loren85022

Explorer
Welcome. You by no means are alone in your plight that got you to this point. Had I read this much in high school, I'd be a PhD of some type. Nor is your build design by any means off the target. building something to suit your preferences is exactly the point. And I doubt anyone would call me a liar if I said we have all enjoyed those moments when others who travel in our circles have come up and slathered a little envy across our rigs. So build on, ask questions and damn it, post some photos!
 

PINSTER

Observer
Pinster1 Initial Sketchup.jpg

Wow, just one youtube on "getting started on sketchup" and i was able to do this. Google is gonna take over the world. Gotta dig a bit deeper and figure out how to make a scale size...then layers, frame/skin/accessories? Gonna need coffee
 

PINSTER

Observer
Thanks guys, and dont get spoiled on pics from me... This build will be a slow roller, so itll be some time before any actual "build" happens.

cwheeler - Ill see ya down island then!
Ragner - Thanks for the resources, will definitely be doing some work with the new welder before attempting a frame
Dr. loren - Thanks for understanding, at this point, Im still one of the ones "slathering" with envy
 

PINSTER

Observer
First question for you engineers or guys with some frame building know how:

Being that this frame will be long at 18ft, do yall think 2x2 steel will be strong enough? Keep in mind the terrain will be rutted soft sand, so alot of up/down force applys even at slow speeds.

And is there a formula or rule to follow for crossbar spacing?

Now, I dont know what the weight will be of the trailer, I can say the cargo will not weigh as much as a boat or jetskis, each kayak ~120lbs. Icechests, water, and fuel would be the heaviest cargo. Im sure weight is the considering factor in answering the questions above... So then maybe the question should be, WHERE do i start this planning process?!!
 

hesterj

Adventurer
I really like the design of your build.
A few years ago I decided to take on a simular project (just without the boats inside). With my limited knowledge of a first build,we chose to start with a used WW brand enclosed trailer. One was found local at a cheaper price then the cost of all the new parts to build one. It's a 16 foot modle.

Top end counter tops,sleeping for up to 8,a/c,stove,ect...we're done by me and the family. It really was a cool time dreaming/building it.

The only advice I can give is watch the weight!!! You can make a pig real quick. Your truck can handle a good amount but a 18 foot trailer loaded down with all of momma's crap and a 20 mile cross wind on I35 @75 mph will get out of hand real fast.

Hope to see ya on the pins.
 

highlandercj-7

Explorer
At that length and weight, I would go a minimum of 2x3 3/16" wall. You could use 2x2 for the cross members but I'd lest run the outside the 2x3.
 

PINSTER

Observer
Titanpat - thanks, your ROAM build has key elements that stuck in my minds conceptualization of this design, along with the Sawtooth, and several others.

And yes, the main objective of this trailer is to offroad, nothing technical, just soft sand, which requires fat tires, ground clearance, and shock absorption. Staying within the track of the truck will also be key to saving gas in the soft stuff. Ideally, ill need to balance strength with weight savings to keep from digging the truck in when starting from a stop.
 
Nice! I'm liking it. I'd say you're off to a good start. I love seeing fabrication in the process. Will be following along with your build! Good luck
 

PINSTER

Observer
Thanks FM,

I'm following your teardrop as well, good looking frame ya got going. Any particular reason you're bolting the body to the frame vs welding it?
 
My original plan was to make the wall framing from wood, so my floor extends to the edges of the frame. Kinda serves as a cool purpose though. The entire body will be able to come off if repairs need to be done. To the frame or floor.

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