Yes, the thicker shelves in Wright's Usonians, right from the start, are made to be a part of the scene. From at least the 'thirties, if not earlier,
the 3/4" board is the standard panel thickness in the home, if not throughout the building interior entire. As stylist extraordinaire Wright knows
to "do better" than the standard---to sculpt rather than merely to build ?
Jacobs I sets the example, for a number of details found again (and again---as at Sweeton, fifteen years and a world war later) in the board-
and-batten Usonians. The extra-wide (and uniquely contrasting-colored) batten, seen everywhere in and out of Jacobs, is echoed by an rec-
tangular batten surface-applied to plywood panels, at Sweeton . . .
The Sweeton bathroom contains corner shelves like the ones at the Jacobs dining nook:
And, the Jacobs shelves are edged with a matching "molding," likewise echoed at Sweeton . . .
. . . and, as the man said, the edging stiffens the shelves, for those who like their styling grounded in structure !