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With a building length of 12000 mm and width of 6000 mm, a (level) roof overhang of 600 mm, the roof is 13200 mm long and 7200 mm wide. With an angle of 15 °, the overall height above outer wall is 907 mm. The roof area is 98.39 m² and sheathing angle is 45.993 °. Rafter spacing is 857.1 mm (Next larger spacing = 1000 Next smaller = 750 ) Creeper shortening = 887.38 mm. 40.8 lineal metres Fascia. 40.8 lineal metres Eave @ 600 mm overhang = 24.5 m² Level (or 25.3 m² at 15 °)
You need: 1 Ridge @ 6050 × 50
18 Common Rafters @ 3701 × 100 × 50
4 Hips @ 5146 × 100 × 50
Creepers + 8 @ 2829 + 8 @ 1942 + 8 @ 1054
Check box (top) for bottom plumb cut
Hip end cuts + member layout as below
* Hip rafter length to points formed by side cuts
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