Encyclopedia & FAQ's

DIY Frequently Asked Questions / Threshold


  • DIY Frequently Asked Questions / Threshold')"> A strip fastened to the floor beneath a door.
  • It usually covers the joint where two types of floor material meet.
  • Can be made of metal, aluminum or wood.
  • It may have a rubber strip in the center to aid in weatherproofing.
  • An astragal is a molding or strip that covers or closes the gap between the edges of a pair of doors. Some types overlap while others meet at the centerline of the gap.