| When frames are fixed on the door ways, a joint | | | | The finish to timber and masonry door frames |
| is formed in between the timber and masonry. | | | | uses architraves and quadrants. The architrave is |
| This joint should be covered since timber and | | | | used on the side where the door frame is fixed |
| masonry do not bond. In buildings, different | | | | flush with the nibs. The quadrant is used where |
| materials fixed together have joints that require | | | | the frame is recessed into the nibs. The quadrant |
| to be covered. In expansion and contraction of | | | | is a quarter round piece of timber. It is about |
| different materials a gap will appear. Materials like | | | | three quarters of an inch thick. It is fixed at the |
| glass and timber, glass and concrete, aluminum | | | | ninety degree corner of the frame and the |
| and masonry, glass and steel do not bond and | | | | masonry. The architrave is flat with designs |
| thus a finish is applied on the joints. | | | | engraved on it. It is about one and a three |
| When fixing door frames in a building, the passage | | | | quarters of an inch wide. |
| should allow for a finish to cover the material | | | | Once the door frame joint is ready for covering, |
| joints. The design should be at least four feet. | | | | the pieces of timber for finishing are measured. |
| This will allow a nibs of four inches to be built on | | | | This are measured from the height above the |
| both sides of the door way. The frame is fixed in | | | | floor skirting. Panel pins are used for nailing the |
| the remaining distance between the nibs. The | | | | architrave or quadrant onto the timber frame. |
| door frame may be fixed flush on one side of the | | | | The architrave is nailed at least one inch of the |
| nibs. The other side may be recessed at least | | | | door frame. This is to allow adequate cover of |
| two inches from the nib ends. Alternatively it is | | | | the joint while exposing the frame. The quadrant |
| fixed midway on the nibs, thus its recessed on | | | | is nailed right into the joint. These timber finishes |
| both sides. | | | | are then painted or varnished for good aesthetics. |