Siding should be kept 6 off the ground account for that when measuring and estimating material.
How to measure for lap siding.
If you re also applying siding to your gable you ll want to measure the square footage of this as well.
Sketch each of the exterior walls of your home on a sheet of paper.
Write down the calculation then divide it by 2.
Height times width and then multiply by 0 75 to account for the angle.
Use our feet to inches conversion calculator if you know the height of the building in feet.
For example 4 inch lap would indicate a 4 inch wide plank.
Multiply height by width to get that side s surface area in square feet.
We are going to install it with a 1 1 4 overlap giving it an exposed face of 7.
For the rectangle and triangle.
Multi lap reveal size area 9 12 10 12 100 sq.
How to calculate the amount of hardie plank siding.
Add side measurements and enter them here.
Divide the square footage by 100 to get the number of squares needed for the wall.
Please enter side s surface area.
Multiply the width and height to get the area of the wall in square feet.
H x w x 0 75 number of squares to cover your gables.
Horizontal lap siding is often referred to by the size or width of a single lap board.
To find the number of squares of siding needed for an installation measure each walls width and height in feet.
Place your ladder in the middle of your gable.
Then multiply by 1 5 and you ll have enough siding to cover the two sides of the dormer.
The lap is created as a panel that includes two or three of the lap planks however.
Multiply height by width for each area and add to get total square footage not covered with siding.
Calculate the amount of fiber cement siding needed to cover a gable the square footage of the gable green area 6 24 2 72 sq.
Measure from the bottom of roof top of your home s side to the peak of your roof.
Measure gables dormers and any other areas not included in the sides.
Enter this total square footage here.
Scale is not important but capture the basic shape.
Measure your home using the shapes on your sketches as guides.
The fibercement board we are using here is 144 long and 8 1 4 wide.
To have enough siding for your dormers measure your dormers height and multiply by width.
Measure the width and height of windows doors and any other areas that will not be covered with siding.