This large tub (dim. 2126 x 1736 external dimensions x H625mm - depth=538) was built in knotless asnaro for a recessed type installation.
The tub is also equipped with an internal removable bench and a W320 x D520 x H880 floor mounted spout, also in asnaro wood.
For the massive top frame (260x80) see also our blog
Kobe Kazamidori chapter
japan@bartokdesign.com