The standard stable door frame is manufactured using 100mm x 75mm (4" x 3") planed redwood timber. The frames are jointed ready to be fitted together. This frame is also supplied with a 45mm x 22mm (1.75" x 0.86") planed timber door stop. This door stop will be supplied loose to allow you to fit it to which ever side of the door frame you require it to be. There will also be an anti-chew strip to fit to the door stop which runs from the height of the bottom door to the top of the frame.