Building a truck cap / tonneau cover
#1
Senior Member
Thread Starter
Building a truck cap / tonneau cover
I've been looking for caps that actually improve MPG, can convert into a partially open bed in seconds and have more storage space than a tonneau cover. I've found exactly none. So the build begins!
First step, roughing out a shape that should meet my needs...
Now let's add a half roof and some structure...
More to come!
First step, roughing out a shape that should meet my needs...
Now let's add a half roof and some structure...
More to come!
#2
Senior Member
Thread Starter
Moved inside because it's cold...
added two pieces of steel channel under roof. This is the support for my roof rack tracks and stiffens the roof. I'll later add supports under the steel channel.
Shaped the box a bit with a circular saw and sander. Added two pieces of aluminum angle and bolted through to the steel angle that runs perpendicular underneath. Drilled 3/4" holes in each channel as tie down points and to support a kayak rack that I will build later.
That's all I got done tonight. The next part will be tricky. I want to make a door on the back half that slides under the front half while appropriately managing water. Will post when I make progress.
added two pieces of steel channel under roof. This is the support for my roof rack tracks and stiffens the roof. I'll later add supports under the steel channel.
Shaped the box a bit with a circular saw and sander. Added two pieces of aluminum angle and bolted through to the steel angle that runs perpendicular underneath. Drilled 3/4" holes in each channel as tie down points and to support a kayak rack that I will build later.
That's all I got done tonight. The next part will be tricky. I want to make a door on the back half that slides under the front half while appropriately managing water. Will post when I make progress.
#3
Cool idea! I'm interested to see how it all finishes up!
#5
Senior Member
Nice idea and good work so far. What are you going to finish it with to keep the plywood from swelling? I used primer, then bed liner on a piece of plywood for a ramp into my shed for the riding mower, and it shows no signs of water infiltration after 3 years. Years ago I built a storage box for the roof rack on a station wagon and just painted it, but only used it in dry weather for summer camping.
#6
Senior Member
Thread Starter
Nice idea and good work so far. What are you going to finish it with to keep the plywood from swelling? I used primer, then bed liner on a piece of plywood for a ramp into my shed for the riding mower, and it shows no signs of water infiltration after 3 years. Years ago I built a storage box for the roof rack on a station wagon and just painted it, but only used it in dry weather for summer camping.
I put it back on the truck today to make sure I like the proportions and make sure everything lined up correctly. I was happy with it all around so back off to work on it more.
I boxed out the tails that run back to the tailgate. This is the frame for the sliding door what will recess below the roof. I also added aluminum channel to get rid of any rain that makes it's way between the sliding door and the door frame. I'll also be sure to add an aluminum "drip" edge to the door that sticks down into the channel a little bit.
That's it for now. Next chance I get I'll work on the sliding door.
Last edited by Gladehound; 12-18-2017 at 09:02 PM.
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MrLunchbox (12-18-2017)
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#8
Senior Member
Thread Starter
Thanks, me too! It's been slow going but I did manage to get the door put together today. Other than the door, I've just been sanding and shaping for better fit on the truck. Really only three things left to do before spraying. 1. Sand more 2. Fill in all the cracks and screw holes. 3. Sand more. Oh, and did I mention I need to sand it?!
Here's the door... my wife was gracious enough to allow me to do my gluing in the house. It's just takes too much fuel to keep that insulated barn warm over night!
Here's the door... my wife was gracious enough to allow me to do my gluing in the house. It's just takes too much fuel to keep that insulated barn warm over night!