Updated 6/02/2018:
The progress on the backdrop divider continues! The next few photos show the installation of 5 of the 6 vertical supports. That's a piece of masonite backdrop support in the left foreground.
To get the 3 pieces of masonite to fit, I had to be very careful with the placement of the vertical supports. Masonite widths (from wall to aisle) are 4', 2', and 4' for a total length of 10'. The vertical 2x2's must support the points where the masonite pieces abut.
In this tight space, corner braces were the right choice.
Here we've got 5 vertical supports in place.
Here's a photo from behind the backdrop. I'm wedged in the far corner.
The framework for the next table is propped up on the blue bins awaiting assembly.
We even had an inspection visit from Samantha. Her boss, Chief Motor Inspector Pumpkin is too arthritic to get down the stairs. So she sent her underling instead.
George