Surface area and material allowances

What this note covers

1. Select faces for a surface-area model
2. Prisms and nets
3. Curved surfaces of cylinders and cones
4. Combined solids and hidden joins
5. Allow for seams, cutting and coats
6. Check surface-area results and units
7. Worked fabrication: open-top tank faces, coating and sheet order
8. Worked cylindrical housing: curved area, open ends and hidden joins

8 sections · 10 key terms & formulas · 6 common mistakes