home is 10.08 Sq., Foot farmers porch is 2.88 sq. , and the other porch is 1.44 sq. ... All together it measures 14.4 sq. , if your using three tab fiberglass shingles add a bit for cutting , starters and caps , get 15 sq. and 1 bundle ... if your using a timberline or demensional shingle get 15 sq. shingles and 2 bundles of hip and ridge cap ... To get the amount you times the length by the width ... then remember 100 square feet (10X10) is one square of shingles.