Tips on building a Tough Mudder Berlin Wall
Dimensions: 6' wide 10' high
I used 20 1x6x6' deck boards
I screwed the deck boards into the 2x4x10' edge boards 
Turn it over and screw the other 2 edge boards onto the deck 
boards
Nail a few 2x4 into the top edges(sides) of the wall and 
diagonally brace them into the ground to hold the wall upright so 
you can attach the 4x4x8' bases
Showing diagonal braces after attaching to 4x4x8' base with 1/4" 
bolts, washers, and nuts
Attach the wall to the 4x4x8' base with 2 brackets, and 3 - 1/4" 
bolts, washers, and nuts. 
Attach the other base, then attach the diagonal braces to the 
base. 
Cinder blocks are there for added weight in case of strong winds.
Because deck boards are only 1" thick, I added 2x4's to the back 
to prevent them from breaking if they get kicked real hard.
That's it - pretty simple but very sturdy and great practice for next 
year's Tough Mudder. I don't want to suffer the indignity of needing 
a boost to get over the walls !!!!!
