Manufacturer page.

Interior wooden threshold is manufactured with a special technique which results in a very durable and stabile constructions which makes the threshold a perfect fit for both commercial and residential use. The wooden threshold can be used for unclassified and classified door sets. The main function of the threshold is to close the gap between door and floor and/or to complete the classified door set. The specific technical standards and addition product information for frame can be found on Swedoor website.