Chapter
13
Floor Plans
Introduction
• The Floor Plan is the heart of a set of construction
drawings.
– All tradeworkers refer to the floor plan.
– Usually the first drawing completed.
– The basis for many other plans.
• The Floor Plan is not a typical top view but a section
drawing.
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Introduction
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Introduction
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Required Information
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Required Information
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Location of Exterior and Interior walls.
Size and location of windows and doors.
Location and size dimensions.
Location of stairs.
Room names.
Materials used (Material symbols).
Location of Permanent fixtures and built-in cabinets
and appliances.
• Walks, patios, and decks attached to the structure.
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Location and Size of Walls
• Draw walls accurately. Walls should be drawn to their
actual thickness.
• Since the Floor Plan is a section drawing proper hatch
patterns should be used to indicate materials.
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Wall Material Symbols
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Location and Size of Windows and Doors
• Centerlines are used to locate window and door
openings in framed walls.
• Centerlines not needed in masonry construction.
Dimension to the side of the opening in a masonry
walls.
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Location and Size of Windows and Doors
• Openings for windows are sash width. Window
opening size = actual sash width.
• Openings for doors are actual width. Door opening
size = actual door width.
• Door swings should be indicated.
• Draw sills for windows and exterior doors.
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Location and Size of Windows and Doors
• Windows and doors are located in a frame wall
with a centerline. A door swing is also shown.
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Cabinets, Appliances, and Permanent
Fixtures
• Show kitchen cabinets, bath vanities, fixtures, and
appliances.
• Use standard symbols at proper scale.
• Check local code for clearances.
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Stairs, Chimneys, and Fireplaces
• Only the basic size and location of stairs and
chimneys needs to be recorded on the floor plan.
• For stairs, show direction of flight, number of risers,
and width of stairs.
• For a chimney, show basic depth and width, opening
design, and location.
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Stairs, Chimneys, and Fireplaces
• Information about a set of stairs that is usually
included on the floor plan.
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Walks, Patios, and Decks
• Outside features attached to the structure are usually
included on the floor plan.
• Walks, patios, and decks are examples.
• Indicate size and materials on plan.
• These elements are considered as part of the total
plan.
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Room Names and Material Symbols
• Room names help to communicate the plan to others.
• Room names 3/16" high and placed in the center of
the room.
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Room Names and Material Symbols
• Material symbols or material hatch patterns are used
to denote each material.
• Use a material symbol whenever the material should
be identified.
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Material Symbols
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Material Symbols
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Dimensioning
• Dimensions on a Floor Plan show size and location of
the features.
• Proper placement of dimensions requires good
judgment and planning.
• Locate dimensions where one would logically look for
them.
• In architectural dimensioning, dimension lines are
continuous lines with the dimension figure placed
above the dimension line and parallel to the dimension
line (Aligned dimension style).
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Dimensioning
• Be consistent with the type of termination symbol used
for dimension lines.
• Move dimension lines out from drawing.
• Space dimension lines 1/2" apart.
• Make leaders no longer than 2".
• Dimensions are recorded in feet and inches.
• Feet and inch marks may be omitted.
• Dimensions less than 1' are usually indicated as 1/2",
2", 6", etc.
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Dimensioning
• Dimension interior frame walls to the center of the
wall.
• Dimension exterior frame walls to the outside of the
stud wall.
• Dimension brick veneer walls to outside of stud wall.
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Dimensioning Frame Walls
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Dimensioning
• Dimension solid masonry walls to outside of wall
• Overall dimensions provide total length and width
of structure or major parts of structure
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Dimensioning Solid Masonry Walls
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Dimensioning
• Overall dimensions are needed to provide the total
length and width of the structure or major parts of the
structure.
• Add up partial dimensions to be sure they equal the
overall dimensions.
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Dimensioning
• Notes are often necessary to present information that
cannot be represented by dimensions or symbols.
• Notes should be read from the bottom of the sheet.
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