After our initial strength test, someone in the Infinity Australia facebook page asked if the picnic table could stand TWO bricks The answer is, one brick good, two bricks bad (but it can handle the weight of two bricks with assistance)
Nothing actually broke but it was very difficult to get the weight to stay exactly above the legs. If I held it in place, the legs could take the weight but as soon as I let go it would fall one way or the other to the side. I think my work table is not actually level.
I was quite impressed that the normal wood glue did not tear… the card just bent. I’ll have these back on the table after straightening the legs up.