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In architecture and building engineering, a floor plan otherwise known as a Scottish plan is a drawing to scale, showing a view from above, of the relationships between rooms, spaces and other physical features at one level of a structure.
Dimensions are usually drawn between the walls to specify room sizes and wall lengths. Floor plans may also include details of fixtures like sinks, water heaters, furnaces, etc. Floor plans may include notes for construction to specify finishes, construction methods, or symbols for electrical items.
It is also called a plan which is a measured plane typically projected at the floor height of Script error: No such module "convert"., as opposed to an elevation which is a measured plane projected from the side of a building, along its height, or a section or cross section where a building, is cut along an axis to reveal the interior structure.
Similar to a map the orientation of the view is downward from above, but unlike a conventional map, a plan is understood to be drawn at a particular vertical position (commonly at about 4 feet above the floor). Objects below this level are seen, objects at this level are shown 'cut' in plan-section, and objects above this vertical position within the structure are omitted or shown dashed. Plan view or planform is defined as a vertical orthographic projection of an object on a horizontal plane, like a map.
The term may be used in general to describe any drawing showing the physical layout of objects. For example, it may denote the arrangement of the displayed objects at an exhibition, or the arrangement of exhibitor booths at a convention. Drawings are now reproduced using plotters and large format xerographic copiers.
A reflected ceiling plan (RCP) shows a view of the room as if looking from above, through the ceiling, at a mirror installed one foot below the ceiling level, which shows the reflected image of the ceiling above. This convention maintains the same orientation of the floor and ceilings plans - looking down from above. RCPs are used by designers and architects to demonstrate lighting, visible mechanical features, and ceiling forms as part of the documents provided for construction.
Floor plan topics
A floor plan is not a top view or birds eye view. It is a measured drawing to scale of the layout of a floor in a building. A top view or bird's eye view does not show an orthogonally projected plane cut at the typical 4 foot height above the floor level. A floor plan could show:
- Interior walls and hallways
- Windows and doors
- Appliances such as stoves, refrigerators, water heater etc.
- Interior features such as fireplaces, saunas and whirlpools
- The use of all rooms
A plan view is an orthographic projection of a 3-dimensional object from the position of a horizontal plane through the object. In other words, a plan is a section viewed from the top. In such views, the portion of the object above the plane (section) is omitted to reveal what lies beyond. In the case of a floor plan, the roof and upper portion of the walls may typically be omitted.
Roof plans are orthographic projections, but they are not sections as their viewing plane is outside of the object.
A plan is a common method of depicting the internal arrangement of a 3-dimensional object in two dimensions. It is often used in technical drawing and is traditionally crosshatched. The style of crosshatching indicates the type of material the section passes through.
Typical U.S. basic house floor plan.
- Carvansara plan.gif
A sample floor plan of a Caravanserai.
- Office plane.svg
An office plan.
- Friederike Schneider (Ed.): Floor Plan Manual Housing / Grundrissatlas Wohnungsbau. Third, revised and extended Edition. Collaboration of Christian Gänshirt, Oliver Heckmann and Bettina Vismann. Basel, Boston, Berlin: Birkhäuser, 2004
- Site Plans, Elevations and Floor Plans A Community Guide San Jose. Accessed 11 February 2009.
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