Rear Storage System: Part 2 - Baseplate
As discussed above, Goose Gear makes a lovely
base plate and
drawer system. They also don't require any drilling or other modification of the car, which is ideal.
Several people on the forums have them, and I haven't heard anything say anything negative about them yet.
Here's what their base plate looks like:
I like this. Unfortunately, I can't justify spending $400 on it, along with the $200 - $300 that it's going to cost to get it shipped to the Big Island.* Especially when I can buy plywood here, and I have all these fun tools in my garage.
* We're going to operate under the assumption that my time is worthless, okay? Otherwise, the whole flimsy edifice that justifies my doing this falls apart. Then I am depressed, and STILL won't have a base plate. So don't go there, got it?
Anyhow, the first step was to remove all the existing junk flooring from the 4Runner.
Next, take some measurements, and make some templates for the really complicated sections:
Then test the templates on some scrap wood:
With fit confirmed, the next step is to make a large scale template that will be used to mark the plywood:
Once I've got the plywood all marked out, it's time to cut things and then sand all the edges smooth:

Contrary to what the picture shows, I did almost all the cutting with a portable circular saw. This let me get close to the line, then I used the table sander to get things right where I wanted them.
Finally, time for a test fit:

Not bad!
Some further careful measuring let me mark off the spaces that need to be "cut up" into the part to avoid other features, allowing the plate to sit lower, a new router (paid for by the money I'm "saving" by doing this myself) makes short work of this part:

Note the cutout shown on the right-most edge of the base plate in this picture. This was for the wiring harness that comes up through a grommet in the floor. I also have an air line that passes through this, so there's some extra space cut out there. You also can't see three other recessed cuts along the top edge. They match the various protrusions near the rear seats.
One thing that had some potential for trickiness was getting the screw holes in the right place. I ended up cutting the head off of a screw and putting a point on it, then threading it into the appropriate hole. When the plate was placed on top (and pounded) the makeshift center punch left a mark on the plate in the right place. Then it was simple to drill in the right place. A countersink was added to the top surface, and then I used M6x1.0 x 40mm flathead screws to secure the thing.
And that's the worst of it. I then sanded the board, applied some spakling to fill the gaps and dents, sanded it again, then painted it with Duplicolor Bed Armor. After some drying time, I installed it over some thin rubber cut from a bicycle inner-tube to prevent rubbing, and we're in business:

The fit is really nice: nowhere is there a gap large enough to fit a popsicle stick into. When the trunk closes, the base plate extends to within a milimeter or so of the door's surface, so there isn't enough space for things to fall in there and surprise me when I go to unload the groceries. (I've lost a couple bottles of beer that way, which was a travesty. :shocked: Now you know the real reason for this project...)
Overall, planning and making the templates took the most time. Once I got down to cutting wood, I finished everything up in a weekend. Let's call it 8 hours of actual work.
In retrospect, I think I'd do this a bit differently on the material's side - I'd get some good looking birch plywood, then used a marine polyurethane coating. This would result in a base that looked much more appealing, while still protecting it from abuse. And, since I'm an incorrigible engineer :nerd:, I have some nice CAD models of the final thing, so replication should be much easier, should I ever choose to do it.
Of course, this isn't the end - I've still got some drawers to build and install, which will require that I add some t-nuts to provide convenient attachment points.
So the plate is going to need to come out again at some point anyhow. I'll probably replace the rubber padding with some 3/8" carpet pad to reduce road noise and prevent rubbing of paint on the bed. (This will also raise the plate slightly.) However, there's a lot of planning, acquisitions, and such that's got to happen before I can really get started on the drawers (Specifically, getting some good drawer slides).
No rush.