What is a door? How is it made? What is it made of? What are its uses? We want to touch a little bit on all the points above in this article.

A door is used to connect to areas which may be two rooms or the exterior and interior of a house. It provides the pathway to travel between these two areas. A door, in its most basic form, is made up of some sort of panel of a certain material that can be swung or slid open. This panel may be hinged on a door frame or just the supporting wall.

This article will deal with the more common doors in use today.

1)      Door Components

a)      The Panel (Leaf)

The door panel or leaf is the part of the door that moves. It usually is as big as the opening and sometimes can be seen split into two parts (as sometimes seen in barns with a horse looking out). The panel might swing left or right or slide sideways (or even upwards). It can be made up of many different materials such as wood, steel, iron, aluminum, PVC, glass, etc.

b)      The Frame

The frame surrounds the panel and holds it in place. It is comprised of 2 jambs (sides), a header (top) and a sill (bottom). On interior doors there is no sill needed. Door frames are usually not pronounced and can blend with the wall they are mounted into. Materials used for frames are as numerous as for panels.

c)       The Trim (Liner)

The trim is the decorative part of a door that is used to visually join the frame and wall interface together. They are mostly applied to the wall with a slight overlap onto the frame making it appear that the frame is wider than it really is. Again, trim materials can vary but usually are made of wood.

d)      The Hinge or Rolling/Sliding Track

A swinging door requires hinges at the panel-frame interface. A sliding door requires some sort of top or bottom (or both) track that the panel slides along to either the left or right. Swinging Door hinges are usually made out of metal for strength reasons (just like sliding tracks) and at least 2 are required for a one-panel door.

e)      The Handle and Lock

Doors no not necessarily need a handle or lock but we do at least see a handle on most. It is just easier to have a good grip when moving the panel. Handles are usually made out of metal or possibly wood. Door locks can come in a variety of forms such as thumb turn, latch-type, hook or keyed locks. Most locks are made of metal for strength and durability.

2. Door Uses

Doors are most likely one of the oldest inventions in the world. Closing off a gateway must always have its uses. Without touching on mobile doors (such as cars) the two main uses today are “Exterior” and “Interior” Doors.

a)      Exterior Doors

This type of door provides the entry and exit to a house. It has a sill and weather strips to be able to seal the elements out more effectively. It is also the main attraction on the front of the house as the main point of entry. Exterior doors provide a better insulating value than interior doors and aim at minimizing heat transfers from exterior to interior on cold days.

Exterior doors can be made up of more than one panel as seen in Double Doors or Folding/Accordion Doors in order to produce a greater opening. In general, exterior doors are bigger and heavier than their interior counterparts. The use of glass in exterior doors is very common.

b)      Interior Doors

This type of door is the passage way between rooms. It is commonly smaller and lighter than the exterior door but purpose and materials are similar. They have no sill, since airflow beneath the door is usually welcomed inside a home.

3. Door Styles

Doors can be either traditional or modern and very seldom a mix of the two. Modernity dictates the absence of ornate wood carvings, for example. It tends to simplicity and straightness.

Traditional doors try to mimic the more detailed craftsmanship of days gone by.

Doors can be made with a single panel or many panels to provide a varying degree of open space and light.

Interior doors do not always have to be between rooms but can divide a bed room from a closet space. This is usually done via sliding doors to save space.

We see larger doors in barns and garages and in these instances the doors slide or move upwards parallel to inside ceiling. Design is sacrificed for functionality in most barn and garage scenarios.

It has to be said that doors are so common that not much thought is spend on them unless you are in the process of buying them perhaps. But every now and then you see one that impresses you. So the oldest inventions are still the most useful after all.

Modern Interior Door examples can be seen here.



What is a door? How is it made? What is it made of? What are its uses? We want to touch a little bit on all the points above in this article.


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10/10/2016 6:46am

Much thanks to you such a great amount for sharing this incredible blog.Very rousing and accommodating too.Hope you keep on sharing a greater amount of your ideas.I will love to peruse.

07/12/2015 3:55am

A door, in its most basic form, is made up of some sort of panel of a certain material that can be swung or slid open. This panel may be hinged on a door frame or just the supporting wall.

07/12/2015 11:29pm

A door, in its most basic form, is made up of some sort of panel of a certain material that can be swung or slid open. This panel may be hinged on a door frame or just the supporting wall.


Good composed article. It will be strong to any individual who uses it, including me. Continue doing what you are doing – can hardly wait to peruse more posts.

11/10/2015 9:33pm

Interior doors are very important for the people of the country they feel secure with the help of their good doors. Without the good doors the people cannot able to feel secure.


It can be very inconveniencing if you get locked out of your own house, office or car because you have lost your key or it has been stolen. However, if you are in Palmdale, then you can get professional locksmith services from locksmith Palmdale experts, who ensure that everyone who needs emergency locksmith Palmdale services does not get disappointed.

03/11/2016 3:50am

Door quality isn't less important than the quality of locks. The door should be well-made and produced of high quality materials. Only then it will serve you for a long time.


Is that esign relly sacrificed for functionality in most barn and garage scenarios? I hope so, because I like it :)

09/29/2016 1:44am

Our technicians constantly receive training and they utilize the newest technology, tools and state- of- the -art locksmith equipment to provide you with the best car lockout solutions

10/01/2016 1:54am

we can upgrade your home’s standard locks to high security locks, or even add deadbolts to your doors. Have broken or worn down door frames? We can fix those too. If you’re worried about the previous owners still having access to your home, we can rekey or replace all the locks on your property, as well.

There’s even more that Locksmith can do for your home, like making duplicate keys, installing an access control system, or putting locks on some of the interior doors. If your home is gated or you share a mailbox area with a neighbor, we can repair, replace, or install locks on those areas as well. And, if you’ve got valuables or important home documents that you need to maintain extra-safe, we can even install a safe in your home

10/05/2016 10:20am

You need to have a good door and a lock because this is your house and you need to protect it from thieves.


The contents of this article are very interesting and useful. There is a detailed discussion about the doors and its accessories. Handle and lock is one of the most important components.Thanks for nice discussion and suggestions.

12/02/2016 11:07pm

Nice to be visiting your blog again, it has been months for me. Well this article that i've been waited for so long. I need this article to complete my assignment in the college, and it has same topic with your article. Thanks, great share.

12/14/2016 4:20am

It's really nice introduction, according to my view there are lot's of companies, who always make best doors, and i think for a good door we should choose a good lock for door.


Great post! I am actually getting ready to across this information, is very helpful my friend. Also great blog here with all of the valuable information you have. Keep up the good work you are doing here.


I am really enjoying reading your well written articles. It looks like you spend a lot of effort and time on your blog. I have bookmarked it and I am looking forward to reading new articles. Keep up the good work.

04/20/2017 12:25am

Professional locksmith can provide a fast response to their clients, most especially in emergency situations.Even they help with providing new door security systems through which you are able to look in your property.Also , there help to install the deadbolts into the doors which are new technology locks and can't be broken easily. I have personally experienced with such Locksmith and they are really great with providing security.

05/08/2017 11:25pm

Sometime we need a complete assistance in lifestyle but we should take good good something that we will always having a good lifestyle to become success.Thanks for sharing


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You will need the key, because getting a key secure also needs a specific quantity of expertise based upon on the kind of secure.

08/07/2017 8:02am

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