|Anna the cat supervising from her position|
on top of the dust extractor
The result was that the legs were 22mm square (or 7/8") tapering down to around 12mm (1/2") at the bottom. This was the minimum size I could go to so it would retain some strength.
I had some English Elm in the shop that I had bought back in August 2013. This was mainly 8/4 slabs that had been slab sawn. Some of the boards still had bark on them. I selected one board that was interesting and had enough stock to get all the pieces for one table.