The dotted line might be a ceiling beam.
Indicate overhead door floor plan.
1 8 inch equals 1 foot etc at which the floor plan is drawn.
Floor plans will include notes to specify finishes construction methods or symbols for electrical items.
Note whether the door opens into or out of the room and indicate the direction with an arc on your rough floor plan sketch.
One for each level of the house these indicate the sizes and locations of all of the rooms in the house all the doors and windows and any built in elements such as plumbing fixtures and cabinets.
Every plan should include a legend that indicates what the project is and what floor the plan is of.
The legend should also include the scale 1 4 inch equals 1 foot.
Determine the size of the windows.
Also measure the distances of all openings doors and open archways from the ends of the walls so that you can accurately locate these openings on your final plan.
Indicates how all of the walls should be constructed including the size of the lumber to be used usually 2x4 or 2x6.
Floor plans will also indicate rooms all the doors and windows and any built in elements such as plumbing fixtures cabinets water heaters furnaces etc.
Elevations are a non perspective view of the home.
The solid circle and square represent columns.
The dotted square top left indicates something above the line where the floor plan is cut typically 4ft.
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