Canaletto Walnut

It sounds like you’re referring to a specific type of flooring, “Canaletto Walnut,” possibly from a product line named “Showfloor.”
Product specification
Product Name: Canaletto Walnut
Plank Size: 14/3.2 x 190 x 1800
Plank per box: 6
Qty per box: 22.09
Specifications: Walnut Flooring, 3 layer Click profile, UV Lacquer