I'm not seeing anything under the topic...is this just a general discussion, or an error in the system?
In any case, I would say that of the things that separate sculpture from structure, doors and windows are some of the most important. A room without windows or doors is a cube--it serves no purpose. Add a door, and then it becomes a room, a partition of space. Windows aren't necessary, strictly speaking, but to make it a place where people would like to be and live, they are an important addition.
Likewise, how, where, and what kind of windows and doors make a huge difference on the feel of a place. There are so many different styles that there really is something for any given situation.
That's all I really have to say about that for now.
Sorry friends but i dont think that doors and windows should be said be the sole necesity of space defining...
Think in terms of openings, think about open layout plans. Wherein there are no walls but still spaces are defined by various means (say levl differences, foliage, meterial) that is the job of an architect to create space...
Think door is not there to make space accessible but it is thre to secure that space .....
Now if we try to think logically ...on the other hand...the doors placement for a spce can be a very dangerous decision....
Door type should be seriously considered...as per space constraints and feel....
And a wrong door swing cn realy make hilarious situations in that space....
say ...the Main door opening outwards.... a door opening in a narrow corridor....a door opening on a staircase landing...
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