Roofing quantity scenarios.
Measure supplied roof planes and order materials using effective coverage. These tools do not set roof structure, pitch or fixing requirements.
Equal-pitch hip roof geometry — rectangular plan length scenarios
How does changing rectangular plan length affect equal-pitch hip roof geometry when the other inputs stay fixed?
Plot and compare quantities →Measured quantity sensitivityEqual-pitch hip roof geometry — vertical rise scenarios
How does changing vertical rise affect equal-pitch hip roof geometry when the other inputs stay fixed?
Plot and compare quantities →Prescribed item countsGutter run stock — corner fittings scenarios
How does changing corner fittings affect gutter run stock when the other inputs stay fixed?
Plot and compare quantities →Stock fitGutter run stock — usable gutter stock length scenarios
How does changing usable gutter stock length affect gutter run stock when the other inputs stay fixed?
Plot and compare quantities →Measured quantity sensitivityRidge cap effective cover — measured ridge length scenarios
How does changing measured ridge length affect ridge cap effective cover when the other inputs stay fixed?
Plot and compare quantities →Measured quantity sensitivityRidge cap effective cover — physical cap length scenarios
How does changing physical cap length affect ridge cap effective cover when the other inputs stay fixed?
Plot and compare quantities →Measured quantity sensitivityRoof covering units — cap run length scenarios
How does changing cap run length affect roof covering units when the other inputs stay fixed?
Plot and compare quantities →Measured quantity sensitivityRoof covering units — effective cap length per unit scenarios
How does changing effective cap length per unit affect roof covering units when the other inputs stay fixed?
Plot and compare quantities →Stock fitRoof membrane roll lap — roll length scenarios
How does changing roll length affect roof membrane roll lap when the other inputs stay fixed?
Plot and compare quantities →Stock fitRoof membrane roll lap — roll width scenarios
How does changing roll width affect roof membrane roll lap when the other inputs stay fixed?
Plot and compare quantities →Measured quantity sensitivityRoof plane area — excluded area measured on the slope scenarios
How does changing excluded area measured on the slope affect roof plane area when the other inputs stay fixed?
Plot and compare quantities →Measured quantity sensitivityRoof plane area — plane length parallel to ridge scenarios
How does changing plane length parallel to ridge affect roof plane area when the other inputs stay fixed?
Plot and compare quantities →Measured quantity sensitivitySoffit strip cut quantity — effective installed strip width scenarios
How does changing effective installed strip width affect soffit strip cut quantity when the other inputs stay fixed?
Plot and compare quantities →Stock fitSoffit strip cut quantity — source strip stock length scenarios
How does changing source strip stock length affect soffit strip cut quantity when the other inputs stay fixed?
Plot and compare quantities →Keep the input basis visible
Stock fit, prepared yield, supplied coverage, count schedules and quoted cost bases answer different questions. Each workbook isolates one stated input and preserves the underlying method's validation. Rejected combinations are shown alongside valid calculated samples.
Open the roofing calculator category or browse every quantity scenario.