Now add support braces using 2 1/2" bolts
(some sections could need only one leg, and in some cases none.)

When docking another section, replace the bolt size with a 5 1/2"

Add "T-Nut" to either section, and use the 3" bolt you removed here.

If you are using a 45 degree corner brace, use 3" bolts, it may line up on a leg brace,
then remove the 2 1/2" bolt and use a 4 1/2" in it's place.

You will now have your benchwork together. If other sections are needed later,
just follow the same procedure.