I just assembled a Mianne dog bone benchwork last weekend. Very easy to assemble the modules as it uses cams and dowels to link everything together using a Phillips screwdriver. Very sturdy. I also used a drill to speed things up. Here is what it looks like:
But, I figured it would be easier to do a larger layout without any extra expense by putting the 4' x 8' sheets right on top of this. It fills in the 1' run between the ends and doesn't compromise on support nor strength. Now it looks like this:
I fastened the sheets to the legs using 1" wood screws. Message me if you have any questions. The system is fairly expensive but you don't wrestle with heavy lumber, cutting, drilling, etc. At 73 with a bad back, this was my choice.