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Calculate Countertops
Calculating Square Footage
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Central Air Conditioner Sizing
1 Acre Has = 43,560 Square Feet - Sample Lot Size 60' x 115' = 6,900 Sq. Ft. /43,560 = 0.1584 Lot Size
Guide to Energy Efficient Heating & Cooling
How to Convert Square Foot to Cubic Yard  =  12 x 12 sq. ft. = 144 / 27 = 5.3333 cubic yard
Square footage - We are getting a lot of requests about how Square Footage works, so the only room that is add to the sale of a home is the square footage that is under A/C. If you have a bonus room that is finished and under A/C then you can add that room into the total square footage of the home, Now if you have a non finished bonus room or finished bonus room that is not under main house A/C it can Not be added to the home as square footage. If it is a closed-in porch area and it is not under main house A/C it is not part of the homes square footage and if that screen porch does not have an A/C duck line servicing that porch (IT IS NOT PART OF THE TOTAL MAIN HOUSE SQ.FT.). do not let a realtor deceive you.  I hope this helps anyone looking for square footage fact. Always check public records for square footage this will help you identify any room or bonus room done with/without permit. Public records has square footage of all homes, but they are off sometimes by 100 to 120 per sq.ft.


You'll Probably Be Surprised By How Square Footage Is Actually Measured!

An inch is an inch is an inch. Or, so you’d think. But when it comes to measuring the square footage of a property, it’s not quite that simple. I doubt there exists a buyer in the entire world of real estate who hasn’t asked, at one time or another, what is the square footage of a particular property. The fact is, however, measuring the size of a home isn’t an exact science. You can hire three different appraisers to measure the same house and they may come up with three different measurements. Because there are multiple ways to measure and different mechanisms used, the physical act of measuring can be done differently. Some appraisers will measure square footage with a good old measuring tape, albeit a large one. Others come equipped with those new state-of-the-art laser devices. I have been present when an appraiser will just eyeball a difficult-to-measure space or even do the wide-arm measurement. The point is, there aren’t any universally applied standards. What does this mean for sellers and buyers?

Read more:

Buying a Home in Thomasville, GA. or in any other part of the country always look at the square footage the home is being listed for then compare that with public records. it will save you much heartache.
At one time or another most homeowners need to figure out the square footage of their home, lot, or even a single room. Whether you're getting ready to sell, just want to know how much square footage you have, or are undertaking a home improvement project that requires you know how big any given area is, knowing how to calculate the square footage of an area (without a square foot calculator!), as well as the cubic feet of a space, is an important skill to master. When buying a new home you need add the square footage of heated and cooled area only the garage should included.
How to Calculate Square Footage:
If you're goal is to figure out the square footage of your home, the process is fairly straightforward. Of course, a web-based square foot calculator is capable of doing it for you, but even so, this is a good thing to know how to do on your own. It all boils down to basic math. If you are getting ready to sell your home, most realtors and appraisal companies measure from the outside, and include any area that heated and used year-round. Don't count your garage or porches into the equation if you're calculating Heated & Cooled area, but other than that the basic formula includes measuring the width and length of each story of your home and multiplying them together. If you have a modest home running 60 feet long by 30 feet wide, you just need to multiply those two distances together. 30 x 60 = 1800 square feet. Don't forget that the only area that included in the price of a home is the heated & cooled area. If the home has an outdoor porch and it is not under A/C it is not included in the homes square footage. Example on how to calculate home price per square foot. House $269,900 / 1733 Sq. Ft. = 155.74 per foot. This would be a sample of an over priced home! What are you really getting for the price? Always check with public records. Not all but some home owners will convert attic space or any unfinished room into living area and not pull a permit to save money and if that attic or unfinished room was not done with a permit most likely it was not done right. In my area some builders will build a home and leave a bonus room unfinished so they can make more money by charging the home buyer an extra $20,000 thousand for a room that should cost no more then $4,000 to $6,000. So if the realtors square footage does not match public records you may have a problem......

Things You Should look out for when pricing a New Home Square Footage.
1) New flat light switches or 50 your old switches that cost .60 cents.
2) New Square Outlets or 50-year-old round outlets? that cost .60 cents
3) Granite countertops throughout or Formica
4) Custom cabinets throughout or Standard cabinets
5) Wired for voice, data, video & Wireless throughout the home or Plain old looped telephone lines.
6) Two Cable T.V. outlet in each room or One cable T.V. outlet in each room. + $65.00 per run.
7) 1 - 14 Seer York Energy Efficient A/C $60/Month or A Minimum Code 1, 2 & 3 A/C units for one home at $400 to 500/Month bill. NOT Energy Efficient at all.
9) 4 Year appliance warranty or None
10) Savings of more than 40% on utility bill or in increase of $300 + utility bill
11) Spray Foam Insulation or 60 year old Cellulose Insulation
12) Tankless Water Heater or A home with 1, 2 & 3  60gal. Water Heater (Always ask how many water heaters)

Cubic Feet:
The other valuable space measurement you're likely to run into addresses square foot calculator. So here, you're on your own. Still, it's not too much different. Say you're installing an attic fan and need to know the volume of air in your home measured in cubic feet. Figure out the square footage first, then multiply that by the height of the space as well. That 1800 square foot home we mentioned earlier, with 8 foot ceilings, has 14,400 cubic feet of air to move (30 x 60 x 8 = 14,400). In landscaping you may also run into measurement of a cubic yard, which is three cubic feet by three cubic feet, or 27 cubic feet (3 x 3 x 3 = 27) of material when it's all said and done.
Square Footage Calculator:
It's good to know how to figure these measurements out on your own, since you won't always have a computer handy to help you. By all means, though, if you're in the planning phases and have the correct measurements, a square footage calculator can save you time. Some square foot calculator websites even convert your measurements into necessary materials, saving you a lot of time converting one to the other. Run a quick web search and you're sure to find a square footage calculator out there to help you on your way.
To get a gross idea of the square footage of an area, multiply the length by the width. It really doesn't matter whether you are calculating the size of your lot or the size of your living room unless you are trying to figure how much paint you need or how much space you have for a vegetable garden. Then getting a more correct number becomes important.
Measuring your lot:
Lots in cities tend square, however it is by no means uncommon for lots pie shaped or irregular, especially when plotted around a cul-de-sac or defined by a geographical feature such as a creek. The lot dimensions should form part of your mortgage package. When you purchased your home, the lenders certainly required the dimensions and lot size so they would know precisely what they were investing in. However, where those property lines located issue if your lot has not been recently surveyed. If you don't know where your property starts and ends, you may want to get that information nailed down, especially if you want to add a fence or wall. Even the best of neighbors mistaken about where the lot line is and if they mow on your side of the lawn for years, they may actually assume that they own property that rightfully belongs to you or vice versa.
So, assuming you know precisely where your property lines are, and the width of your lot is 55 feet and its depth is 110 feet (an ordinary city lot) then your lot is 6050 square feet or just shy of 0.14 acre (an acre being 43,560 square feet). In other words, you and six of your closest neighbors probably equal one acre if their lots are the same size as yours. This is a perfectly respectable lot size, however if your house is a 2500 sq. ft., single-story ranch, your lot may feel considerably smaller than if your home splits its total square footage between two stories. Such are the benefits of a smaller footprint.
But what if your lot size is oddly shaped? How do you calculate square footage then? Probably the simplest means is to revisit your high school geometry lessons and break your lot into more easily calculable elements. Your lot comprises rectangles, squares, and triangles. Even if math isn't your strong suit, it's not too difficult to lay out a series of rectilinear shapes and decide square footage. In the adjacent image, you can see how a series of rectangles over an otherwise irregular shape. Where a diagonal bisects a rectangle, the total divided by 2. All individual components calculated, then added together to get the total.
Square footage of your home:
Determining the actual square footage of your home is not as straightforward as you would expect. American National Standards Institute (ANSI) suggests that residential property be measured using exterior measurements of the building at each level. (For the purposes of figuring a home's square footage, room dimensions are irrelevant.) Keep in mind that ANSI standards (which are guidelines, not regulations) define finished
Rectangles and triangles help determine square footage.
spaces as any enclosed area that used year around. Exclude any space that is not finished or heated like the main body of the house. Don't include the garage as part of your home's square footage, though you would count it when calculating its footprint on the property itself.


Determining the real square footage of your home is not as straightforward as you would expect. American National Standards Institute (ANSI) suggests that residential property be measured using exterior measurements of the building at each level. (For the purposes of figuring a home's square footage, room dimensions are irrelevant.) Keep in mind that ANSI standards (which are guidelines, not regulations) define finished spaces as any enclosed area that used year around. Exclude any space that is not finished or heated like the main body of the house. Don't include the garage as part of your home's square footage, though you would count it when calculating its footprint on the property itself.


Measure the exterior of the building at the level of the floor. If a bump out occurs at the floor level, include it. If it occurs higher like a cantilevered window with a window seat, do not include it as part of the square footage. Measure to the nearest inch or 1/10th of a foot as this makes calculating room sizes more accurate. To arrive at total square footage, multiply width by depth. Add bump outs and subtract indentations. Subtract stairwells. For second floors that occur under a gabled roof, you'll need to measure inside.
Measuring Rooms:
There are a variety of good reasons to measure the rooms in your home. Buying enough paint, wallpaper, or flooring; arranging furniture; and calculating the type of home theater components are just a few.
A third dimension that often comes into play with rooms is ceiling height. Cubic area—that is, width x length x height—is used to calculate the size of air conditioning units and heat pumps.
Measuring cubic feet is the same as measuring square footage. A living room that is 15 x 14 x 8 feet is 1,680 cubic feet. For a room with a cathedral ceiling, the following illustration may help.
Calculating squares and cubes is manageable for most of us who have forgotten most of what we knew about the finer points of mathematics ages ago.
Measure Twice:
"Measure twice, cut once" is an old saying but which always holds true. Carry it a bit farther and keep a record of all the measurements of your home. It is incredibly useful to know sizes and dimensions of each window and room, especially when new carpet is on your short list and there is a smoking deal over a holiday weekend at your local carpet retailer's. It will save you the trip home to measure or the cost of ordering more than you need, just on "the safe side”.


The sizing chart below is useful to help you find your approximate central air conditioner size requirements. This would not be the same for a green home.

Air Conditioning Square Footage Range
by Climate Zone

1.5 Tons 600 -
900 sf
600 - 950 sf 600 - 1000 sf 700 - 1050 sf 700 - 1100 sf
2 Tons 901-1200 sf 951 - 1250 sf 1001 - 1300 sf 1051 - 1350 sf 1101 - 1400 sf
2.5 Tons 1201 - 1500 sf 1251 - 1550 sf 1301 - 1600 sf 1351 - 1600 sf 1401 - 1650 sf
3 Tons 1501 - 1800 sf 1501 - 1850 sf 1601 - 1900 sf 1601 - 2000 sf 1651 - 2100 sf
3.5 Tons 1801 - 2100 sf 1851 - 2150 sf 1901 - 2200 sf 2001 - 2250 sf 2101 - 2300 sf
4 Tons 2101 - 2400 sf 2151 - 2500 sf 2201 - 2600 sf 2251 - 2700 sf 2301 - 2700 sf
5 Tons 2401 - 3000 sf 2501 - 3100 sf 2601 - 3200 sf 2751 - 3300 sf 2701 - 3300 sf
If your A/C unit is to big you will put to much moisture in your house and if to small your a/c will work harder and it will never shot off.
Another way to size air conditioners is to decide the system size that is currently in place. The manufacturers do not list the air conditioner size on the unit. The system capacity into the model number of the outdoor unit.
For example, model CKL24-1 is a 2 ton unit. Why? There are 12,000 Btu's per ton. The number 24 in the model number indicates the unit is 24,000 Btu's, divided by 12,000 Btu's per ton, equals 2 tons.
24,000 Btu's/12,000 Btu's per ton = 2 tons
Use the following conversion information to decide your existing system size (use the system model number NOT the serial
  • 18 = 1.5 tons
  • 24 = 2 tons
  • 30 = 2.5 tons
  • 36 = 3 tons
  • 42 = 3.5 tons
  • 48 = 4 tons
  • 60 = 5 tons

Heating Square Footage Range by Climate Zone

30 - 35 Btu's per square foot 35 - 40 Btu's per square foot 40 - 45 Btu's per square foot 45 - 50 Btu's per square foot 50 - 60 Btu's per square foot

Heating Guide

Use the lower of the two numbers if your home is well insulated and the higher number if it is older or poorly insulated. (Hint: Use the larger of the two numbers above if you're unsure of your home's insulation)
Simply multiply the proper factor above by your home's total heated square footage to arrive at your approximate required heating capacity. For example, if you live in the yellow zone, your home is well insulated, and you have 2000 heated square feet, the equation will look like this: The high of the ceiling is NOT included in the square footage. 
2000 square feet

X .40
heating factor (from the chart above)

Btu actual output
Then, to calculate the output on a gas furnace, multiply its efficiency rating by its listed input rating for the real Btu output of heat. For example, if a furnace has a listed input rating of 100,000 Btu's and an efficiency rating of 80%, it will produce 
100,000 Btu input

X .80

Btu actual output
If the same 100,000 Btu furnace has an efficiency rating of 93% it will produce:
100,000 Btu input

X .93

Btu actual output
For this example, using an 80% efficient furnace, the 2000 square foot home above would require a 100,000 Btu input furnace which will produce the necessary 80,000 Btu's output of heat.
What is the right size air conditioning system for my house?
The old accepted estimate is that the HVAC unit should offer 1 ton (12,000 Btu) of air conditioning for 400 to 500 square feet of building area. However, this rule fails to take into account how well the home insulated, how well it's sealed and the local climate. In a very efficient house, 1 ton could condition 800 to 1,000 square feet of space. Use a unit too small and you won't cool the home. If the unit's too big the home will be cool but the unit won't properly dehumidify. I would get a reputable A/C Company.

Q: What is a SEER rating?

A: It’s easy to think of SEER like MPG in a vehicle. The higher the SEER rating the more efficient the unit is, meaning less power used. This is good for the environment, decreases air pollution, and greatly decreases your utility bills. In case you’re wondering, SEER stands for Seasonal Energy Efficiency Ratio. The minimum SEER now required by the U.S. government is 13. Several units exceeding 23 SEER.

Q: What is the right size air conditioning system for my house?

A: Having the right size system is extremely important. Even one that is too large is a big problem: It will cool your house too quickly (satisfying your thermostat before removing sufficient moisture), leaving a humid environment and potential mold problems. It will also cycle on and off more often decreasing efficiency dramatically. Of course, a system that is too small simply can’t get the job done.
Determining the size of a system involves a lot more than matching square footage to the right unit. Every house is different. Factors such as floor plan, types of walls, windows, orientation, sunlight/shade, attic conditions and much more affect the required size. It is best to have an experienced HVAC technician thoroughly inspect your home before making any decision on what size unit to install.

Q: Do air purifiers, like the ones for sale in malls, work to improve indoor air quality?

A: Yes and no. They improve indoor air quality, but in a very limited fashion. The types of purifiers you find in retail stores are extremely limited in range. They only help the room in which they are used as opposed to the whole house. Even in that one room they are far less effective in comparison to air cleaners that are a part of your home’s ventilation system.
Improved filter systems and air purifiers that embedded in your heating and air conditioning system work on all the air that circulated through your house. Recent technology has led to products that are more than 100 times more effective than standard filters.

Q: What if my heat and AC equipment are fairly new? Are there other ways to increase energy efficiency?

A: Certainly. Your home’s insulation, ductwork, window sealing and much more impact how often your equipment needs to run. Improving these aspects of a home is often called weatherization. It can also include solar screens for windows and new programmable thermostats.
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