Drawing a Floor Plan

It is not the intention of this article to give you aThe bathroom or bathrooms of a home should be
complete course in drawing a floor plan. That is adrawn at a minimum of five feet wide to
very involved process. In short though, I would likeaccommodate a bath tub and no less than seven
to walk you through the process for your generalfeet deep to allow room for a toilet and sink vanity.
information.A half bath should be a minimum of four feet wide
Most all plans start with a sketch of some sort madeby four feet deep to allow for the sink and toilet.
by the prospective home builder, or by a professionalThe living or family room should almost always be at
architect or designer. Usually that sketch is drawn onleast one and one half times the size of the smallest
graph paper so that some sort of scale can bebedroom to allow for plenty of room for socializing
maintained and usually that scale on the grid paper isand relaxing while watching television or entertaining
either one quarter inch equals one foot or two feet.guests.
The first thing that is drawn is the exterior boundaryKitchen sizes will vary but the minimum size kitchen
known as the perimeter walls. Weather you are usingfor a two or three bedroom home should be at least
a drafting board or a CAD (Computer Aided Drafting)one hundred square feet to allow for cooking
program, the process is still basically the sameappliances, dish washing, food storage, and
because a CAD program really is nothing more than apreparation.
drafting board on your computer.If a utility room is on the house sketch, this should
Inside the boundary line, we then draw the thicknessbe a minimum of three feet deep by five feet wide
of the exterior walls which can either be four or sixfor a washer and dryer to be placed in it. This type
inches depending on how much insulation will be usedof utility room usually has a five foot wide bi-fold or
and if the construction material is wood or metaldouble door to allow access to both appliances.
studs, with wood being the most common of theAnd lastly, if we have a garage, the minimum for a
two. This is usually determined by the climate of thesingle car should be twelve feet wide by twenty two
area the house will be built in. Houses in colderfeet deep and an eight foot wide garage door.
climates would receive more insulation, thereforeOnce the rooms are laid out then the doors are
thicker walls, and those in warmer climates wouldplaced. The nearest a door should be to a wall is
receive less.three inches because of the trim surrounding the
For homes built with other materials, the thickness willdoor casing. The minimum door sizes are as follows:
vary from one material to the next. For instance ifMain Entrance - 36 inch, Secondary Entrance - 32
the home is masonry block, the thickness would beinch, Bedrooms - 30 inch, Study or Library - 32 inch,
four, eight, or twelve inches. With poured concreteBathrooms - 24 inch, Utility Rooms - 32 inch, Linen
the thickness can be whatever is prescribed by theClosets - 16 inch, Bedroom Closets - 24 inch, Pantries
designer, but usually not under six or eight inches- 12 inch, Storage Rooms - 32 inch.
thick.These sizes are the preferences of most people I
Once the exterior walls are drawn, the interior walls,have drawn houses for and may have to be altered
which are almost always four inches thick, are thento suit the home builder or your client. It's also good
placed with careful attention paid to room depths andto swing a door to the closest wall for the sake of
widths. For instance, a hall that is under three footspace. Wherever a door is placed, you can't have
wide is of no practical use because the minimum doorfurniture! So door placement is a matter of
(from my own experience) into a bedroom shouldfunctionality also.
always be no less than thirty to thirty two inchesWindows are very important to the home as these
wide and the framing along with the two or threeallow light and fresh air into the rooms. For a
inch trim should always be considered.bedroom, the minimum window should be three feet
A bedroom should always be a minimum of ten feetwide by four feet four inches tall to allow fire egress
wide and ten feet deep not including the closet to(a fire escape) should it be needed.
allow for a bed, dresser and chest of drawers. TheOnce these stages are completed then things like
closets should be a minimum of two feet deep bydimensions, door and window labels, notes, and
three or four feet wide to allow for clothing storage.electrical can be placed on the plan.