Teardrop Trailer

 by e1ioan
Contest WinnerFeatured
_DSC4344.JPG
_DSC4347.JPG
_DSC4345.JPG
Please visit my website for all the steps of this project: http://www.teardropdiy.com 
 

Each step is one day.

First of all, my day job is software programmer. This is my first build. I have basic knowledge of wood working and I have some tools. The build is going to take a while (a month? two?). I only have time to work on it from 8PM until I go to sleep (about 3 hours) and in weekends when we have nothing else planed.

My plan is to keep the price under $1500 $2000. You can buy already made teardrops for $4000-$11000.

My Hyundai Sonata can pull a trailer of 1000lb max. My plan is to make the teardrop be under 700lb with all the equipment inside.
 

The only size of plywood that I can bring home is 4'x8', so everything that's made of plywood should fit in that size.

Here is how the side wall of the trailer should look like. 


 

A list of parts with links from where I got them:

  • Trailer. I'm going to use the 4x8 Super Duty Utility Trailer from Harbor Freight Tools to built the teardrop on. On the time of creation of the website, the trailer was on sale for $350. I got in mail a %20 off coupon and that made the price $280. Note: If 4' wide is not wide enough for you, you can use this trailer. It's a little more expensive, but 1 foot wider.
  • Doors. You can build your own door. I won't. I'm afraid that I'm not going to be able to make it water tight, so I'm going to use already-built doors. You can get them from eBay for $240. I was lucky enough to find two brand new doors for $230 both, from someone who builds teardrop as a business. Note: You can use only one door on one side, and a window on the other side. I got two doors because they were cheap and I won't have to step over my wife if I have to pee at night.
  • Vent. I need a vent to put on the top of the trailer. I need one that's able to move lots of air (the door windows won't open on my doors). From my research the best vent is "Fan-Tastic Fan". I already ordered one from eBay for $120.
  • Hatch hindge. For the big door that lifts open at the back of the trailer. This should be water proof. I'm using a "Hurricane Hinge". Already ordered from eBay for $71. You also can get it from here.
  • Porch Lights. I need two porch lights to install above the doors. Ordered 3 from eBay for $63. 12V LED.
  • Dome Light. I also need some dome light for the inside the teardrop. Already ordered from eBay for $17.99. 12V LED.
  • Water pump. The best pump I found is the 12V Whale GP1352 submersible water pump. You can buy it from eBay for as low as $25.
  • Hatch handles. Got those from eBay.
  • Aluminum. I called around all the sheet metal places that I found in my area until I got the best price. I got mine from http://www.ircalum.com , they are from Portland Oregon.
  • Aluminum Molding. Go here and click "Online parts catalog" then go to "Moldings"
  • Sink/Stove combo. Got it from here.
Tools I use:
  • Box cutter
  • Pencil
  • Framing square
  • Wrenches. Big ones. You'll need for the trailer 16mm, 17mm, 18mm wrenches (I suppose this depends on what brand of trailer you are using)
  • Wireless drill
  • Jigsaw
  • Chop saw
  • Table saw
  • Sander
  • Belt sander

Cost so far:

Trailer
 $280
Doors  $230
Vent (Fan-tastic Fan)  $120
Hatch hinge (5' hurricane hinge)  $71
12V LED Porch lights (3 pcs)  $63
12V LED Dome light (1 pcs)  $18
Black spray paint (2 bottles)  $12
1/2"x4'x8' Birch plywood x 3pcs (one for the floor and 2 for the side walls)  $120
5mm Utility plywood 4'x8'  x 2pcs (for side walls interior)  $23
2x4x96 x 8pcs (for the frame, not sure if I'll use all 8 of them)  $22
Exterior screws (1box)  $8
Henry Asphalt Emulsion (1 gallon)  $12
Brush  $3
Bolts & washers & lock washers & nuts to bolt the floor frame to the trailer (3/8" x 3" 20pcs)  $26
Bolts & washers & nuts for spare wheel (1/2" x 6" 2 pcs)  $6
Hard foam insulation 1/2" 4'/8' (one sheet)   $10
Hard foam insulation 3/4" 4'x8' (3 sheets)  $30
Sink-Stove combo  $187
12V Cigarette lighter socket (2 pieces)  $16
Automotive Fuse Holder Box Holds 6 Blade Fuses  $14
Electric Facet & Pump System  $50
1/8" birch plywood (3 pieces)   $70
Molding  $16
Wood stain  $12
Aluminum sheets 4x8 (1 pcs) 4x12 (2 pcs) $170
Aluminum molding, plastic insert for molding, External Drip Cap  $160
1 Gallon Contact Cement  $10
TOTAL $1759

 
Remove these adsRemove these ads by Signing Up

Step 1: Day 1 - February 8th 2012


Feel free to click on the pictures to see them in full size for more details.

The trailer box opened.  Looks small. 
 

Lots of screws and parts. 

 

 
Here are the doors I bought. Is two of them in that box, shiny and new.
 
 

 

Hmm.  All the trailer parts look the same.

 
 

The trailer starting to get shape . 
 


 

I had to go buy some more wranches, mine are too small. Enough for tonight. 

 

 

I woke up in the morning with muscle pain everywhere. I discovered some muscle that I didn't know I had. Crawling on the floor trying to put a trailer together is not easy :-)

I'll have to paint the trailer frame black. Red with aluminum gray won't go nice.

 

1-40 of 201Next »
fitzman163 says: May 1, 2013. 7:46 AM
I must say that was a fine tutorial! I bet that took as much work as the building of the teardrop. What a great finished product! I am entertaining the thought of doing one at some time I will keep your info I'm sure it will help me tremendously. Thank you for the great work of helping others with this type of project. Fitzman163
MakeItWithJason says: Apr 8, 2013. 9:05 AM
This is great--it blows mine away.

I didn't know you were a dorkbotPDX !  Perhaps I will see you there!
e1ioan (author) in reply to MakeItWithJasonApr 16, 2013. 4:32 PM
Your looks good too! Yeah, I have to come once at the meetings. I'm from Salem.
MakeItWithJason in reply to e1ioanApr 17, 2013. 8:55 AM
Thanks, man. Not sure I'd build one again--want to make a "canned ham" style now. Maybe I'll see you sometime at the Dorkbot mtgs if you're ever up from Salem again!
hveve says: Apr 8, 2013. 8:45 PM
This is a wonderfully put together post! My husband and I plan to do something similar someday. Did you find the wheels on the trailer to be sufficient for extended travel? Also, with it all said and done, is there anything you would have changed? The aluminum skin you used it beautiful but seems like it might be quite difficult to install, is there anything in your research you found that would work instead? Thanks for any input!
e1ioan (author) in reply to hveveApr 16, 2013. 4:31 PM
If it was to build it again, I would use a 5' wide trailer (from http://www.northerntool.com/). The installing of the aluminium it's not as difficult as it looks, you just glue it to the walls and then cut it at the edges with a router :-)
MakeItWithJason says: Apr 12, 2013. 1:23 PM
Hey 31ioan,

Did you buy the aluminum and trim at interstate RV Metal in Clackamas?
e1ioan (author) in reply to MakeItWithJasonApr 16, 2013. 4:19 PM
I got it from those guys: http://www.ircalum.com/
Martynor says: Jan 3, 2013. 3:58 AM
Fantastic job and great instructions. I am about to start a self build and now I need look no further for instructions. Last year (2012) i converted a Merc Vito to a camper and traveled through France, but the missus wasn't keen on sleeping in the tunnel awning so I said I would built one of these for this year so the kids can sleep in the van and we can have a bit of privacy ;-) in the trailer. So thanks for the comprehensive guide and I hope you have many wonderful holidays in it. Happy new year.
e1ioan (author) in reply to MartynorJan 3, 2013. 10:19 AM
Thank you! Happy new year to you too!
beach man says: Nov 28, 2012. 4:02 PM
Beautiful teardrop build job!
Thinking about building a teardrop. Is there another source for doors or will the same teardrop builder sell to others? Those e-bay prices are a little much for such a small door.
Thanks
Rick
steveastrouk says: Nov 2, 2012. 7:59 AM
This about the most heart-stoppingly beautiful project I've seen here. Its exquisite.

Incidentally, to anneal aluminium, coat it with soap: when the soap darkens, its hot ENOUGH.

Steve
wakjan260261 says: Oct 28, 2012. 7:10 AM
great job. just keep it that way.
coirby says: Oct 14, 2012. 4:49 PM
I have a Toyota Corolla 2002. I have been wanting to put a trailer hitch on it, but haven't gotten much info on it over the internet. Can you recommend a hitch and do you know how many lbs it would be able to pull? I'd like a small trailer to take for weekend campings. Thank you. :)
e1ioan (author) in reply to coirbyOct 15, 2012. 9:41 AM
I got my hitch from etrailer.com. Here are the hitches that fit your car:
http://www.etrailer.com/hitch-2002_Toyota_Corolla.htm
Ben Mighall says: Sep 25, 2012. 7:32 PM
What was the final cost overall, both monetary-wise and time-wise?
e1ioan (author) in reply to Ben MighallSep 26, 2012. 9:25 AM
The total cost, about $1900 (this doesn't include the tools that I bought, some people already have the tools). It took about 100 hours to make it.
Ben Mighall says: Sep 25, 2012. 7:07 PM
So the frame and floor are attached together now? In the next step, you just bolt the two to the trailer, or are they still separate? If separate, what are the crossbars on the floor-underside in the first pic? Also, is the insulation covered on the underside, or do you just leave it as-is?
e1ioan (author) in reply to Ben MighallSep 26, 2012. 9:22 AM
On this page the frame and the floor are not bolted together. The tar and insulation goes on the underside. On the next step, I flip the floor over (with the insulation down) and bolt it to the trailer frame. I didn't cover the insulation. The cross bar you see (if I understood you question right) is the tongue of the trailer.
sgtpepper1138 says: Sep 14, 2012. 1:39 AM
Nice trailer, you just gave me goosebumps because I LIVE in GP. Nice work, I plan on building one in the near future.
eilatmar says: Aug 31, 2012. 11:31 PM
thanks alot its great.
lhershey1 says: Aug 7, 2012. 10:19 AM
How awesome. Love the camper. It looks great and you did a great job on the write up too!
Peter Vivian says: Jul 25, 2012. 2:33 PM
Well done, congratulations on being voted runner-up.
goatdriver1957 says: Jul 15, 2012. 5:20 PM
Again, let me agree too, "what a DIY job well done". Very well documented as an expert tech writer. Holding my breath about the sheet metal installation.

The last month I've been trolling the web for suggestions in converting my 4x8 riding lawn mower trailer into a tearDrop and your thread has been the most in getting me closer to the start build date.

The pics with mom and the kid are so sweet. As it goes, when mom is happy, everyone ARE.

Don't forget to strap those bottles down in the rear..

As one requested, keep updating and add the "wish I had" bullets.
Keep having fun. :) 071512. Allen.
goatdriver1957 says: Jul 15, 2012. 3:50 PM
Rebuttal; I would recommend NOT TO add sheet metal on the under side on the floor. It retains moisture by condensation and high humidity. Let that underside breath. I even question the tar covering that was installed and insulation. Remove the insulation. If you've got to install someinthg, install (in the proper direction) heavy construstion paper.

Silicone (caulk) the leading contact edges where the 2x meet the floor panel forward, to hold back puddle spash, water seal several coats and it will be good for a few years and the paint again.

DallasDeckard says: Jul 11, 2012. 4:11 PM
Great job, buddy! And yes, your wife is pretty! ;-) Thanks so much for providing the pictures of the event and other teardrops. I know the maxim "no good deed goes unpunished" very well. I remodeled our entertainment room before we moved into the house (removing the wet bar and paneling, installing drywall, soundproofing, texturing, you name it) and my wife responds with: "Wow, that was easy, you should start on the guest bath now". Sigh. I finished the guest bath and she said, "Might as well go right into the master bath, it would be easier that way". I love how she finds ways to use the word "easy" as it pertains to months of my hard work. Haha. But, pretty wives are worth it, aren't they? Hope you have loads of fun with your teardrop, and thanks again.
oking says: May 20, 2012. 2:04 PM
I have a question and I am sure this is the wrong step to ask in, but I try to find the answers before asking.

About the insulation, I noticed that you used foam board insulation. Would there be anything wrong with using a spray foam to allow me to skip the taring and screwing on the underside? I know that it works great in homes and can not foresee any problems with using it on this project.

I am loving you design so far BTW. You've showing me that it's not as hard as I thought it would be.
Bosun Rick in reply to okingMay 20, 2012. 11:00 PM
oking - I wouldn't recommend using a spray in foam. you will be hard pressed to get it to fill the areas, even if it is the non-expanding type. You for sure don't want to use expanding foam, as it will easily "Blow out" your walls if you use too much.also, spray foam is messy, and nearly impossible to work around if you need to get into a wall to change/add wiring later.
The rigid foam 'e1ioan' used is great, and it can be purchased with a foil face on both sides I believe for even better insulation.
oking in reply to Bosun RickMay 21, 2012. 4:22 AM
I know that on houses every thing you said except the wiring part and can be messy is false. The only time I know of it being messy is when the installer does not know what what they are doing.

The way the foam panels are being installed is proof of that.

The wiring part just needs a little more fore though eg run conduit.

I know for a fact that spray foam fills in areas better than stiff foam, when using the correct product can be installed between walls without "blowing them out" many of them have a set PSI during expansion.

DallasDeckard in reply to okingJul 11, 2012. 3:19 PM
It may be true that spray in foam "fills in areas better", but why work with that messy stuff for such a small amount of "fill"? Honesty? It's a huge pain. I work with the stuff all the time. This guy is going camping, not climbing Mount Everest where every BTU of body heat is critical and every crack needs to be filled.

This guy has created a very doable DIY trailer, with a minimum of mess and fuss. Why use spray foam and get that crap everywhere, when you can get just as good insulation using the boards? And why install conduit? Do automobiles have conduit installed (except for some plastic sheathing)? No, they don't, and they seem to deliver 12v to the entire vehicle without any problem. He's trying to keep the weight down and conduit is overkill.

I checked your comments, it's just one nitpicking thing after another, and you haven't made a single instructable. Why don't you make an instructable, to prove you can do something, before going around and giving advice to everyone and cutting down someone's installation ability (which you did here)?
maintann in reply to okingMay 20, 2012. 5:08 PM
I built a wooden trailersailer some 10 years agot The cabin roof is constructed of two layers of ply over beams. The outer layer is 1/4" the lining is 1/8". Overall thickness is just under 2". Between the beams I laid aluminium foil shiny side up. On one memorably frosty morning we woke to see the the beams picked out with lines of condensation on them; between the beams was dry. Apparently a 1.5" air space with a reflective surface is a better insulation than 2" of wood.
don
ps l agree once you get started it's not as hard to do as you feared.
e1ioan (author) in reply to okingMay 20, 2012. 3:07 PM
I'm not sure that insulation it's even necessary... I suppose that depends in what kind of weather you are going to use the trailer. I used insulation because it seemed to be a good idea. What you have to make sure, though, is that no water is going to get to any parts of the wood. The tar is good for that.
oking in reply to e1ioanMay 21, 2012. 4:26 AM
I am in the state of Washington.

It would need insulation.
dimdiode says: Jul 4, 2012. 3:16 AM
Fantastic workmanship and a great end-product. Congratulations on a really detailed ible with such good instructions I reckon most people could have a good go at making one this way. Really enjoyed reading the build, well done.

Now I have to get off my backside and make one - no more excuses!

Thank you.
Scumm7 says: Jun 22, 2012. 11:48 PM
Great instructable. You might think about replacing that linoleum with something harder (scrap aluminum or formica) for the counter top. My thoughts are that the linoleum may trap food particles and wear down with repeated scouring.
luchianni says: Jun 19, 2012. 5:00 PM
Bravo Ioane! Esti un adevarat meserias! Am citit pana la sfarsit cum ti-ai construit rulota. Felicitari!
e1ioan (author) in reply to luchianniJun 20, 2012. 11:28 AM
Multumesc. A iesit mai bine decat ma asteptam :-)
Jetpack5 says: Jun 18, 2012. 4:26 PM
A well deserved win! What a cool build!
HollyMann says: Jun 18, 2012. 1:17 PM
Congrats on winning!!! you deserve it!
e1ioan (author) in reply to HollyMannJun 18, 2012. 1:28 PM
Thank you!
1-40 of 201Next »
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!