Design elements - Doors and windows

The design elements library Doors contains 69 symbols of doors.
The design elements library Windows contains 34 symbols of windows and casements.
"A door is an opening or closing structure used to block off an entrance, typically consisting of an interior side that faces the inside of a space and an exterior side that faces the outside of that space. While in some cases the interior side of a door may match its exterior side, in other cases there are sharp contrasts between the two sides, such as in the case of the vehicle door. In addition, doors typically consist of a panel that swings on hinges or that slides or spins inside of a space." [Door. Wikipedia]
"A window is an opening in a wall, door or vehicle that allows the passage of light and, if not closed or sealed, air and sound. Modern windows are usually glazed or covered in some other transparent or translucent material. Windows are held in place by frames. Many glazed windows may be opened, to allow ventilation, or closed, to exclude inclement weather." [Window. Wikipedia]
Use the shapes libraries Doors and Windows to create house plans, home plans, floor plan layouts and home designs using the ConceptDraw PRO diagramming and vector drawing software.
The vector stencils libraries Doors and Windows are provided by the Floor Plans solution from the Building Plans area of ConceptDraw Solution Park.

This HVAC floor plan sample shows the ventilation duct system layout.
"Ducts are used in heating, ventilation, and air conditioning (HVAC) to deliver and remove air. The needed airflows include, for example, supply air, return air, and exhaust air. Ducts commonly also deliver ventilation air as part of the supply air. As such, air ducts are one method of ensuring acceptable indoor air quality as well as thermal comfort.
A duct system is also called ductwork. Planning (laying out), sizing, optimizing, detailing, and finding the pressure losses through a duct system is called duct design." [Duct (flow). Wikipedia]
The HVAC floor plan example "Ductwork layout" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.