I am drawing out a ridge board joint for someone here, the notched splay that we use down here in sunny Devon.
There are several variations.
Any way, I googled "ridge board joint" to check the name and a very similar joint is to be seen, as the japanese example, above on "barnoramablogspot" about 6 rows down on the right, please have a butcher's,
I've never seen this before! Regards Rodders
