Door Jamb

Door Jamb

Door Jamb

When you walk into a retail store and there's a sign in the door that says Door Jam, what do you think is going to happen? The retailer has installed a sign, in place of a real door, that will (hopefully) keep the relentless stream of potential customers from continually pestering the salesperson behind the counter. I suppose there's a reason why this isn't put to use much in the real word.


Side jambs, head jambs, and mulls (oh my!) are the parts that make up the frame. Residential door frames are most often made of wood but can also be made of aluminum, fiberglass, or a composite material. Door frames can be purchased primed (ready to paint) or ordered with a factory finish in a variety of colors.


These are the vertical components on each side of a door or window frame. Side jambs are the part of the door that gets fastened to the framing with screws or nails. (Source: www.marvin.com When two individual windows or a door and window are joined, the seam between the frames of the two units is called the mull, which is short for mullion. In this case, a door jamb has been joined to a window/sidelight jamb. The seam is typically hidden with a piece of trim called a mull casing (See additional definition below). (Source:www.marvin.com))

Doors are pretty complicated pieces of machinery, comprising of multiple different parts which work together for seamless functioning. One of the vital parts of a door is the ‘door jamb’, often misspelled as ‘door jam’.

Believe it or not, a door jamb and a door frame are technically two completely different things. Us mere mortals will refer to the entire unit as a door frame, when in actual fact, there are many elements to a door frame, such as the jamb.

in architecture, is the side-post or lining of a doorway or other aperture. The jambs of a window outside the frame are called “reveals.” Small shafts to doors and windows with caps and bases are known as “jamb-shafts”; when in the inside arris of the jamb of a window they are sometimes called "scoinsons."

The word jamb is also used to describe a wing of a building, perhaps just in Scottish architecture. John Adam added a 'jamb' to the old Leith Customs house in the Citadel of Leith in 1754–1755.

The Australian Moulding Company offers a choice of either pre-primed or raw MDF, as well as finger jointed or clear pine, Kiln Dried Hard Wood, American Oak, Western Red Cedar, and Meranti. We offer other varieties of timber with some restrictions, so feel free to contact us at 1300 761 838, get a quote here, or see our contact page to ask for more details if you have a specific wood for your door jamb in mind. (Source: www.australianmoulding.com.au)

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