Pyramid Hip Roof Shingle Calculator

Measure the base side lengths and roof pitch. Enter them into the pyramid hip roof calculator above. It computes the slant height, all 4 triangular face areas, hip seam lengths, field bundles, and cap bundles. A 30×30 ft pyramid at 6/12 pitch needs about 41 total bundles.

No — a true pyramid roof on a square base has no main ridge. All 4 hip ridges meet at a single apex (peak point). On a rectangular base, a short ridge connects the two peak points. The calculator handles both cases automatically based on the Side A and Side B inputs.

A pyramid roof has exactly 4 hip seams — one running from each corner of the base up to the apex. Each seam requires ridge cap shingles and produces cutting waste along its full length.

15% is the standard waste factor for pyramid roofs. The 4 hip seams create angled cuts on every row of shingles. If the pyramid has dormers or a very steep pitch (above 8/12), increase to 20%. The calculator defaults to 15% and lets you adjust.

Yes, pyramid roofs cost 15–25% more than gable roofs. Every side requires angled cuts at the hip seams, producing higher material waste. The 4 hip seams need additional cap bundles, and installation labor is more intensive due to the all-hip geometry.

Slant height is the distance from the midpoint of a base edge to the apex along the roof surface. Formula: Slant Height = √((Base/2)² + Rise²), where Rise = (Base/2) × (Pitch/12). A 30 ft base at 6/12 pitch has a slant height of approximately 18.03 ft. The calculator displays this value automatically.

Yes — enter different values for Side A and Side B. The calculator computes two different slant heights (one for each pair of opposing faces) and sums all 4 face areas. This covers rectangular-base pyramid hip roofs accurately.