23/32” is quite common, to the point where they make sets of 1/32” undersized router bits for cutting slots to fit undersized plywood https://www.woodcraft.com

23/32” is quite common, to the point where they make sets of 1/32” undersized router bits for cutting slots to fit undersized plywood https://www.woodcraft.com/products/freud-89-670-3-piece-undersized-plywood-router-bits-set-1-2-shank https://www.woodcraft.com/products/freud-89-670-3-piece-unde... - Creates perfectly fitted grooves and dadoes - Ideal for 1/4" to 3/4" plywood - Includes 7/32", 15/32", and 23/32" diameters