Knotty Alder Exterior Doors and Rustic Round Top Exterior DoorsIWT has an attractive display of Premium Knotty Alder Exterior Doors. Knotty Alder has Rustic Qualities not found in other knotty wood door species. Knotty Alder is the perfect wood for Rustic Entry Doors with knots strategically located on stiles and rails and door panels as to not interfer with the structure and performance of the Exterior Knotty Alder Doors. |