Total linear feet of main roof ridge
Total linear feet of all hip ridges (0 if no hips)
Standard 5" for 3-tab shingles
Standard 10% for cuts and fitting
Hip caps install at a steeper angle than ridge caps, which can use slightly more material per linear foot. When in doubt, order an extra bundle — most suppliers accept returns on unopened bundles.
Results
33 linear ft with waste
30 ft of ridge
0 ft of hip
At 5" exposure
Ridge vent length (informational)