Mercier 4.25" Atmosphere Distinction Solid Hard Maple 19mm Hardwood PlankMercier Atmosphere 4. 25" Distinction Solid Hard Maple 19mm Hardwood Plank celebrates craftsmanship and proportion with a slightly more expansive 4. 25" profile, ideal for transitional or up to date environments. The solid 19mm construction offers immense strength for sustained use. Consistent wood grain and neat edges define the Distinction grade, meeting the needs of sophisticated residential or commercial projects and ensuring beauty and endurance