To begin there are some things you will need to know. Depending on how
much detail your builder and building inspector require, the minimum
set of plans should include the floor plan, exterior elevations,
foundation or basement plan, and a roof plan drawn to scale.
A
scale is nothing more than a shrunken ruler so that 1' -0" (12 inches)
would be 1/4 inch long on your drawing. Here then is an example. If we
use the scale and draw an eight foot (8') line. In reality the line is
only Two inches (2") long on the paper.
What's in a set of house plans:
There's
a Floor Plan that's a view of a house you would see if you took a knife
and sliced the house to see the walls, windows, doors, etc. from the
top, middle way down the walls. This is also called a dimensional plan.
Typically all floor plans are drawn at the scale of one quarter inch
equals one foot and zero inches. (1/4" = 1'- 0") It should include all
the measurements of the walls, windows, and door locations, door and
window sizes, stair locations, room labels, locations of exposed beams,
cased opening sizes and locations, bathroom layout showing sink vanity,
tub or shower, and toilet, kitchen cabinets with appliances & sink
fixtures, and construction notes.
Many floor plans include the
electrical symbols telling us where the receptacles, light switches,
light fixtures, ceiling fans, cable connections, telephone jacks, and
meter base are located in the house. These can be included in the
dimensional plan but many drafters place it on a separate drawing page.
The
Exterior Elevations or views include all four (4) aspects of the house.
They are the front, left, rear, & right drawn also at one quarter
inch equals one foot and zero inches (1/4" = 1' - 0") scale. Then there
are some plans that have the front elevation drawn at 1/4" scale and
then the left, rear & right at one eight inch equals one foot and
zero inches. (1/8" = 1' - 0") On these views you find notes about what
type of siding or veneer, the roof pitch (angles) of the various roofs,
grade locations, finished floor & ceiling locations, and a roof
plan showing the house from the top view. The roof plan is usually
drawn at 1/8" = 1' - 0" scale or 1/16" = 1' - 0" to save space on the
drawing.
The Foundation or Basement Plan is the same type as the
floor plan showing wall types, footing sizes, floor joist or truss
locations, support beams, pilasters or piers, and ventilation vents
& openings. The foundation or basement plan is also a dimensional
type drawing. Most of these plans are drawn at the scale of 1/4" = 1'-
0".
If the plan is more detailed, then we would see sectional
details showing total breakdown of the materials used to construct the
home and how they are put together, HVAC (heating and air conditioning)
plan, plumbing plan, and cabinet elevations. Even more involved plans
would show the types of mouldings, pediments, & trims in greater
detail as well.
Tim Davis is a veteran Architectural Designer who teaches a full course in Residential Drafting at http://houseplandrafting101.com He also teaches students how to read and understand blueprints at http://blueprints.8m.com
Disclaimer: All information on this site is provided for informational purposes only! By no means is any
information presented herein intended to substitute for the advice provided to you by any health care or other professional
or organization.
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