Cargo storage box 3.0 build:
I built the first single drawer storage box for this rig around 6 years ago. It was small, and held the spare tire on top. Used a single set of 100 # slides on it, and it worked for a while. After a trip to Moab with it, I soon found that the gear in it was pretty heavy, and it was stuffed to the max. Finding items in it was a pain because of being crammed up. A couple years later, and I built another bigger box (2.0). Made it so the smaller box could sit on top, and hold more gear. No room for the spare anymore this way, and it completely blocked the rear view. I removed the smaller box, and placed it in the back of the work rig, where it has worked great for that purpose, and still does.
Last winter I started to change how this rig stores, and carry items needed/wanted for big trips. A big custom roof rack was installed, to help carry bulky items, and make more space inside. So the next step is the cargo storage area. I decided to make a different style box, that can do a few things in the small space it uses. I learned a few things building another setup for the adventure trailer, and incorporated some of that into this build. This rig has a big trip planned in less than 2 months time, and another next spring. I'm sure more will happen as time/funds allow in the future too. Space is a premium for gear, tools, and spare parts. This box will hopefully help with these trips.
This build has taken so long to do on my spare time, that it will be broken down to a few posts, showing the progress in stages. The next few posts sharing this build, shows the progression of 2 full months of work, and counting. I am not fully completed with the build yet, but close! In the spirit of helping others, and showing the work done as it goes, this will be a long series for what it is. Nothing out of the ordinary for this thread tho.
1 ) Building The main box.
Decided to go with a bottomless box, as a floor on it isn't needed for this style build. 3/4" sanded ply was used, so one less large piece helps with weight.
Now I do not own a table saw, and making straight cuts is important. I have other means and methods for this. I mention this for those like me, who want to build stuff, but don't because of lack of certain tools. I would actually buy a table saw, if I had room for it, but I do not. These methods work for me, so it is how I currently cut.
For straight or rip cuts using a skill saw, I have 3 different methods for nice smooth even straight cuts. Krieg skillsaw guide is good for up to a two foot, from a factory edge. It clamps on the saw, and you adjust the width on the built in ruler. Simply slide it along a factory edge cut, and you will have a nice clean cut. I also have a clamping straight edge saw guide for larger cuts, that works well. For smaller cuts, I have a different setup, that uses nothing special, and everyday shop tools. More on that later.
Once the cuts was done, it was time to put the pocket hole tools to work. These make for a super strong joint, and the special pocket screws come in many lengths, with course or fine pitch, for soft or hard woods. I used multiple sizes and both thread types in this build.
The shop vac attachment keeps this job clean as you drill out the angled pocket holes in the jig.
The box was put together after all was drilled out. This box has two sides to it. Each side will do it's own thing for different purposes. I changed the widths of each sides a couple times as I went, until I was happy.
Since this box is bottomless, it needs some type of frontal side to side support. I cut/welded some 3/4" angle for this. I also added a section of it to the underside of the top, to use for a latch catch. I have a few left over stainless T handle door latches from the trailer build, so decided to use them.
So a test fit was in order. I found it to be a little too tall for my liking. I removed it, and cut all the walls down a couple inches.
Next up was getting hardware fitted and installed. Making all the holes prior to any paint or finish work helps for a cleaner finish.
This needed all hardware to be inset on any finished surface. Which turns out to be almost all of it. lol
I learned that having a screw or bolt going thru wood, needs a sleeve to stop the wood from wollering out, and making your job a sloppy one eventually. There are a few ways to accomplish this, with different hardware to use. I choose to use Tee Nuts. I found these to work best in my projects. They have spikes that dig into the wood as they are compressed, and stay put once seated. The threaded shanks on them come in multiple sizes, and you choose the length according to the thickness of the wood your using. For 1/2" wood, I use 7/16" shank, for 3/4" wood, I use 9/16" shanks.
Finding center with an appropriate sized hole punch, then drilling a small 1/8" pilot hole all the way thru, keeps everything where it needs to be. After that, using a spade bit a little larger than the tee nut flat end is, a shallow hole is drilled to allow the tee nut to be recessed flush.
Switch over to a drill bit a fraction larger than the OD of the tee nut shank, and drill all the way thru the 1/8" pilot hole. This allows the tee nut to set inside tight, and centered. I used both #10-24 & 1/4"-20 tee nuts on this build. #10's use a 1/4" drill bit, and 1/4" use a 5/16" drill bit. For the spade bits, a #10 nut takes a 3/4", and a 1/4" nut takes a 7/8"
Those shavings are from one single cut/hole. I did dozens of them on this build. What a mess!
Next on the to do was install the slides, and get them matched up nicely. Tape was used to keep the ball bearings clean of debris. Here you can see the pocket holes, and the tee nuts for 2 slides. Stainless bolts are used on everything.
That's it for now, more to come shortly.