The fd30 rated premdor wiltshire oak internal fire door features clean vertical lines to create a unique style the oak veneer facings are supplied unfinished ready for staining or painting on sitethis door provides 30 minutes of fire protection when hung in accordance with the manufacturers instructions in an appropriate frame with intumescent strips in the jambs and head or top and long edges of the door click on the video link under the product image for more details on installing fire d