2 accurate more detailed method.
How to figure sq ft for siding.
Using your tape measure measure the length and height of each rectangle and triangle.
Enter this total square footage here.
Get out and measure 1.
Multiply height by width for each area and add to get total square footage not covered with siding.
Measure the height and width of each side.
Measure gables dormers and any other areas not included in the sides.
Multiply h and l by 1 2 to get gable square footage gsf.
These lines should be measured in feet ft for square footage calculations and if needed converted to inches in yards yd centimetres cm millimetres mm and metres m.
Area of a square side length x side length answer side length x side length square area abbreviations of unit area.
Ft 2 in 2 yd 2 cm 2 mm 2 m 2.
Add gsf to sf from step 1 to get total square footage tsq.
H x l 2 gsf.
To find the number of squares of siding needed for an installation measure each walls width and height in feet.
Divide the total by 100 to find the number of squares of vinyl siding to order.
Multiply each length and height measurement to find the square footage of each wall then add them together to find the total square footage.
Multiply height by width to get that side s surface area in square feet.
Calculating your square feet for siding you can calculate your home s exterior square feet with this square feet calculator.
Measure the width and height of windows doors and any other areas that will not be covered with siding.
Start by measuring the height and width of each wall of the building.
Break it into rectangles and triangles.
Write it down on your drawing.
Add side measurements and enter them here.
Multiply the width and height to get the area of the wall in square feet.
Measure the areas that will not.
Measure the height h and length l of each gable.
Please enter side s surface area.