Rafter Length Calculator Created by Vinh Luu | Face It Marketing on 07/02/2025 Carpentry & Trim (0) (0) (0) (0) Save Share Report Calculate the length of a rafter given the width of the building, overhang, and width of the beam, if any. Inputs Building Width ftinydcmm Overhang incm Beam Thickness incm Roof Pitch - Select - 0/12 (flat)1/122/123/124/125/126/127/128/129/1210/1211/1212/1213/1214/1215/1216/1217/1218/1219/1220/1221/1222/1223/1224/12 Calculate Result Rafter Length ? Feets and inches ? Feet ? Inches Roof Details ? Roof Angle ? Slop Factor ? Hip & Valley Factor Save Share New Calc Result Note notes are not created yet Result Comments (0) Result Comment no comments on result yet