What is the small door in my fireplace?

Cleaning Up. For fireplaces: Some fireplaces have a small, cast iron door called an ash dump door inside the fireplace in the center of the fireplace floor, or inner hearth. This door leads to the ash pit, an open cavity below the fireplace.

What is a metal door?

Hollow metal doors are one of the most common types of doors used in commercial and industrial environments. A hollow metal door is composed of a steel frame that has steel panels laminated to both sides. The door is typically equipped with mounts for hinges and a pocket for a mortise lock.

How much do metal doors cost?

Door Prices by Material

Door Material Price Range*
Steel $100 – $1,000
Wrought iron $1,500 – $7,000
Fiberglass $150 – $5,000
Aluminum $100 – $2,000

How heavy is a metal front door?

The most standard size of hollow metal door used in commercial buildings is 36” x 84”. A typical 18 gauge hollow metal door will weigh approximately 106 lbs. An 18 gauge 72” x 84” hollow metal door pair will weight approximately 212 lbs.

What is the metal door on the bottom of a chimney for?

The ash dump door is located in the middle of the firebox and makes it easy to remove ash from the firebox. The dump door is opened to move the ash into the ash dump. The ash dump is the space directly below the ash dump door and is where the ash falls anytime the ash dump door is opened.

What is an ash dump door?

Ash dump doors are the small brick-sized doors located in the bottom of most fireplaces. They allow you to sweep ashes into an ash pit located through the doors under your fireplace.

What is a metal clad door?

A flush door having face sheets of light-gauge steel bonded to a steel channel frame; or a door having a structural wood core clad with galvanized sheet metal.

What are the different types of steel doors?

Manufacturers use three different types of steel frame doors, including cold-rolled steel, galvanized steel and stainless steel. The first one is used to manufacture door panels.

What is a Brickmould?

Brickmold is used as casing around exterior doors. It is molding around the window and door frames that abuts the exterior facing material of the building and serves as an aesthetic boundary between the siding and the frame; most commonly used in pre-hung units. It is also known as trim, casing and and an architrave.

How can you tell if a door is metal?

If the door is made of steel it will be magnetic. Therefore, if a kitchen magnet stays put on the door, you know that the substrate is steel. Depending on how many layers of paint have been applied you might need a stronger magnet than the ones that are used on refrigerators.

What is inside a metal exterior door?

Steel doors are comprised of either a polyurethane or polystyrene core with a steel skin over the top. A solid steel door would be prohibitively heavy and would most likely tear out the hinges. Steel between 16 and 24 gauge is used for the skin of the door.

Do metal doors have wood inside?

Solid steel, often used in military and marine settings, isn’t the type you might install in your home; those usually feature a lightweight core made of foam (either polystyrene or polyurethane) or wood coated in a durable steel skin. A wood frame, called a stile, surrounds it.

What is the difference between metal and steel doors?

Steel tends to wear faster and more easily than iron. On the other hand, iron doors stand up to wear far more readily than steel, thanks to its higher content of graphite, which provides the lubrication needed for continued surface contact and, ultimately, the preservation of the material.

What is the difference in a hollow door and a steel door?

The higher the gauge, the thinner the steel. So, door facades made from steel with a smaller gauge are thicker and stronger. While they are called “hollow” this can be misleading because you still have the option of selecting insulation materials to suit your needs and climates.

Are exterior metal doors hollow?

Common hollow metal door cores include honeycomb, polystyrene, polyurethane, steel stiffened, and temperature rise. Hollow metal doors are typically used as exterior doors, or in an interior setting where a more durable door is needed such as a manufacturing facility.

What is a HMD door?

The HMD-S steel stiffened (channel-shaped stiffeners) door series is utilized in such applications where added security is required. These doors are available in a variety of sizes, gauges and elevations (Lites & louvers).

What are metal doors filled with?


This insulated core is a foam that is injected into the core and expands to fill all the available space within the cavity of the hollow metal door. Polyurethane will have the best insulation value that is higher than both honeycomb and polystyrene. However, a polyurethane door cannot be fire rated.

What is honeycomb door?

It is inner core material that is used for different doors and is honeycomb shaped (hence, named as honeycomb door). It is made of cardboard or layers of paper that are circumscribed with each other in parallel and equivalently spaced.

What is a Polycore door?

Rib Polycore & Solid Polycore

These doors typically consist of 2 x MDF skins secured to a timber frame with a polystyrene interior and present improved durability and sound properties whilst still remaining relatively light.

What is a Duracote door?

Solid core Doors are a flush panel, duracote finish perfect for painting. They can be used internally where a heavier door is required, but predominantly as an external door, due to its solid construction.