A home improvement project that involves new flooring means using simple math to find the right amount of vinyl or carpet needed for the area you want to cover. If you are planning to paint or wallpaper, use easy formulas to determine how much paint or paper to purchase.
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How Much Vinyl Flooring Do You Need?
Does your home improvement project involve a new vinyl floor? To figure out how many vinyl floor tiles, or sheet vinyl, you need, follow these simple formulas:
Vinyl floor tile calculator
To figure out how many vinyl floor tiles you need to buy, calculate the floor area you want to cover and divide that number by the size of one tile:
Floor Area:
[Length of Floor] × [Width of Floor] = Floor Area
Tiles to Order:
For 9" Tiles: Floor Area ÷ 0.5625 = Number of 9" Tiles Needed
For 12" Tiles: Floor Area = Number of 12" Tiles Needed
Sheet vinyl flooring calculator
Determine how much sheet vinyl to purchase by calculating the square footage of floor you plan to cover and dividing that number by 9 to get the number of square yards of flooring you need.
Floor Area:
[Length of Floor (ft.)] × [Width of Floor (ft.)] = Floor Area (sq. ft.)
Sheet Vinyl to Order:
[Floor Area] ÷ 9 = Number of Sq. Yards of Floor Covering Needed
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How Much Ceramic Tile Do You Need?
If your home improvement plan involves a new ceramic tile floor, how do you determine the amount of ceramic tiles you need? Simply calculate the area you plan to cover and divide that number by the size of one ceramic tile.
Total Area (Floor, Wall, Countertop):
Length (ft.) × Width (ft.) = Total Area (sq. ft.)
Tile to Order:
For 4" Tiles: Total Area ÷ 0.1089 = Number of 4" Tiles Needed
For 6" Tiles: Total Area ÷ 0.25 = Number of 6" Tiles Needed
For 9" Tiles: Total Area ÷ 0.5625 = Number of 9" Tiles Needed
For 12" Tiles: Total Area = Number of 12" Tiles Needed
For 18" Tiles: Total Area ÷ 2.25 = Number of 18" Tiles Needed
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Determining How Much Wall Paint You Need
To avoid having too much leftover wall paint, use these formulas to determine how much paint to buy when you start your home improvement painting project.
Total Wall Area:
[Total Length of All Walls] × [Wall Height] = Total Wall Area
Unpainted Areas:
[Window Height] × [Window Width] × [Number of Windows] = Window Area
[Door Height] × [Door Width] × [Number of Doors] = Door Area
Paintable Wall Area:
[Total Wall Area] – [Window Area] – [Door Area] = Paintable Area
Paint to Order:
[Paintable Area] ÷ 350 = Number of Gallons Needed for Smooth Walls
[Paintable Area] ÷ 300 = Number of Gallons Needed for Rough, Textured Walls or Unpainted Wallboard
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Calculating How Much Wallpaper to Use
If you’ve decided on wallpaper for your home improvement project, you want to make sure to buy the right amount for your needs. These formulas help you determine how much wall paper to purchase:
Wall Area:
[Total Length of All Walls] x [Wall Height] = Wall Area
Unpapered Areas:
[Window Height] x [Window Width] x [Number of Windows] = Window Area
[Door Height] x [Door Width] x [Number of Doors] = Door Area
Wallpapering Area:
[Wall Area] – [Unpapered Areas] = Wallpapering Area
Wallpaper to Order:
[Wallpapering Area] ÷ [Usable Yield] = Number of Single Rolls Needed
Usable Yield Charts:
| Pattern Repeat (Drop) | Usable Yield (American Rolls) | Usable Yield (European Rolls) |
| 0 to 6 in. | 32 sq. ft. | 25 sq. ft. |
| 7 to 12 in. | 30 sq. ft. | 22 sq. ft. |
| 13 to 18 in. | 27 sq. ft. | 20 sq. ft. |
| 19 to 23 in. | 25 sq. ft. | 18 sq. ft. |
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Calculating the Amount of Carpet You Need
If your home improvement project involves new carpeting, determining how much carpeting to buy is easy. Calculate the square footage of floor you want to cover, divide that number by 9, and you have the number of square yards of carpeting you need.
Floor Area:
[Length of Floor (ft.)] x [Width of Floor (ft.)] = Floor Area (sq. ft.)
Carpeting to Order:
[Floor Area] ÷ 9 = Number of Sq. Yards of Carpeting Needed
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Source:http://www.dummies.com/how-to/content/home-improvement-for-dummies-cheat-sheet.html
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