Δαφνη Ευτυχια Αρθουρος

Last year at Pennsic, I built a platform out of three full sheets of plywood and some 2x4s and 1x4s. The idea starting out was to be able to level my tent on gently sloping ground (because my poles were starting to bend from setting it up on a slope yeat after year) and get the floor of the tent out of the way of runoff from rainfall. Camp was crowded, and it turned out to be useful to be able to add legs to one end and perch my tent on a rather steeper slope and free up some gentler grade for somebody else. I'm going to do it again, but incorporating improvements suggested by neighbours last year: I've not made any progress over the past year except to flatten out the plywood again by stacking most of my dining room and a large bass amplifier on it for eleven months (it was warped when I took the platform apart at the end of War last year), so I'll be assembling it all on site again, but the plan is to do it in such a way that it comes apart into three separate sections and a small number of carriage bolts for the ride home, instead of a pile of about twenty pieces of wood and a rather large number of screws.

This brings me to where I need to borrow a clue. Each sheet of plywood will be screwed to a 2x4 frame with 1x4 joists reinforcing it. The question is, how do I want to lap the corners of each frame?

A:

+---------------+ 
|               |  \
+-+-----------+-+  this
| |           | |  edge
| |           | |  bolts
| |           | |  to
| |           | |  next
| |           | |  unit
| |           | |   |
| |           | |   |
| |           | |   |
| |           | |   |
| |           | |  /
+-+-----------+-+ 
|               | 
+---------------+



B:

+-+-----------+-+
| |           | |
| +-----------+ |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| +-----------+ |
| |           | |
+-+-----------+-+



C:

+-+-------------+
| |             |
| +-----------+-+
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
| |           | |
+-+-----------+ |
|             | |
+-------------+-+



D:  something else


E:  doesn't matter

Also, I'm guessing that in this configuration I'll want the joists to run short-ways across each panel, right?

The whole thing winds up being 12'x8', which is just a few inches bigger than the floor of my tent (nominally a 9x12 but it's more like 8x11.5 -- anyhow, it fit on the platform last year, and plywood sheets are 4x8, right?).