The Shingles for Dormers calculator computes the number of shingle bundles needed for one or more roof dormers based on the dimensions.
INSTRUCTIONS: Choose units and enter the following:
Shingles for Dormers (SH): The calculator returns:
Items with units can be automatically converted to compatible units via the pull-down menu.
The Roofing Shingles Cost Survey list the observed price of a bundle of shingles. A bundle is equal to roughly (33 1/3 ft2) or one third of a roofing square (100 ft2). The survey includes a date, the name of the store, and the five price points for shingles: economy, low, median, high and premium.
One should use the pricing for roofing materials that can be bought locally. However, the following prices are for different quality grades of shingles in the United States:
All prices are for one bundle of shingles which cover 33.33 ft2.
An addition of the TO parameter (default of 3") s added to the following dimensions.
It's better to have too much and have to cut it, than not enough.
Roofing Geometry Calculators