Bruce and Jean's Tiny Travel Trailer
Frame and Deck
11/4/2007


Teardrops and Tiny Travel Trailers

NEW!! How I Built Our Tiny  Travel Trailer Video





Boxcar Concept

We camped in the teardrop four years and decided it was just too small. I think we would still have it if we had buildt it 5 feet wide but it was only 4 feet and it was just too tight for the two of us (or we had grown too big). I started thinking about all the things I would liketo have in a trailer and started  designing a new trailer for us. This would not be a teardop but rather a more conventional type trailer. I built this one in a little bit different order than the teardrop; I built this one from the inside out.

Harbor Freight Trailer11/4/2007 - The first step was to build a trailer frame. I looked around for quite a while looking for a frame that  was  6.5'x11'. There just aren't any trailer available out there in that size because its a non-standard size. I would have to build one myself. Here's cut steel at DenCol Steel in Denver where I ordered the steel and then picked it up after the cut it for me.



 







Boxcar SteelThey carry steel in 24' sticks. You get one free cut with each stick and each additional cut is $1.50. I basically had them just cut everything in half. The steel was $280. I should have had them do all the cuts but I'd already bought a cut off saw. Den Col would have delivered but they require that you have a forklift on site!


























Boxcar Steel and WheelsI got the wheels from eBay and the tires from the  the Tire Rack.com. I used 14" load range C Goodyear Marathons because they seemed t have the best reputation at the time I was researching them on the 'net. The axle is a 3500# flexiride axle with 5x4.5" hubs and electric brakes. I was going to use the same lug pattern as the truck but the hubs would have been HUGE with 8 lugs. I settled on the 5X4.5" becasue you can find trailer wheels at Walmart in that size.  I used the flexiride because you can adjust the ride height easily. I wanted to make sure I could get the trailer out f the garage when I was done.





Boxcar Frame11/24/2007 Here I'm starting to layout the frame and the axle. The water tank will live right behind the axle so that a full tank of water won't upset the trailer balance too badly. I'm using corner braces to try and keep everything square.

















Wiring and11/24/2007   The tongue is 2x3x11G, the frame is 2x3x14G, and the cross members are 2x2x14G. The frame is lighter than I thought it would be but its no light weight. The  flexiride axle weighs a ton! I have to put the axle on next and then build the outriggers. The box will be 6-1/2' wide and 11' long with a 42" tongue. This is the first time I've ever worked with metal and I have to say I sure like wood better!









Boxcar Tongue12/2/2007 Here  I 've welded up the coupler riser and bolted on the coupler. I need the extension so the trailer would match the height of the hitch on the truck. I have a drop hitch but going lower than around a 4" drop gets expensive so I raised the coupler.  I need to box the end of the lower tongue tube, but  I want to run the trailer wiring down the tubing. I've already  boxed the extension.












Boxcar Tobgue12/2/2007 I flipped the frame over and beveled the leading edge of the tongue and boxed it. The hole is where the trailer light wires will go. I beveled the front so hopefully it will ride up and over anything I happen to hit with the tongue. I saw a cargo trailer break free from the tow vehicle after they hit the tongue on a cattle guard.














Boxcar Floor FramingI started on the floor before I painted the frame to keep from scratching up the paint. Boy I sure do like working with wood better than metal. I built the subframe and floor in a weekend.  I ended up adding supports to the open area for the water tank after I tested it with the decking. Not quite strong enough for my big butt. I used 2x2 for the subframe and 1/2" CDX for the floor.












Boxcar Floor DeckingHere's the decking on and the screws located and drilled. Starting to look like something now. Too bad I have to take it all off to paint the frame.























Boxcar Floor Painting
04/13/2008 Here's Jean hard at work. We used floor and porch paint and it turned out pretty good. I insulated the floor but didn't take any pictures. I just left the insulation exposed so we'll see how it holds up.



















Boxcar Frame Painted We painted the frame with Rustbullet. I really like how the Rustbullet went on and it seems to be pretty tough stuff. We're not going to give it a topcoat, the Rustbullet doesn't need it and we like the color. We used a short nap roller and the finish turned out great.
















BoxcarElectric  BrakesI installed the brakes and packed the bearings. I went over to NAPA and got a replacement set of bearings and seals so I have a spare set to throw into the trailer someday when its finished.






















Boxcar Trailer Light WiringI used smurf pipe to run the trailer wiring around the frame. I wanted to make sure the wiring was  well protected as it seems like every other trailer I see on the road has a light or two that doesn't work. I used a trailer wiring junction box to split the wiring fron the 7 pin plug down both sides of the trailer. That's the spare down there and it will ride onthe bottom of the frame.








Boxcar Trailer Light Wiring I finished the wheel wells. Boy, the decision to use 14" wheels comes back to haunt me with a 12" high wheel well. I wanted tires with enough weight capacity to carry everything safely at highway speeds, I just didn't realize how much interior room it would take. Oh well. I used leftover CDX since its pretty common for a blowout to trash the wheel well. Everything will be replaceable.











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