Roof Sheeting Calculator
Work out how many roof sheets you need for a roof, shed or patio, plus screws and flashing, by roof dimensions.
| Roof sheets (6m lengths) | 14 | $1,512 |
| Ridge & flashing | 10 m | |
| Roofing screws | ≈280 |
How we estimate this
Metal roof sheets have an effective cover of about 760mm. This calculator works out how many sheets you need across the roof width, and the lineal metres to order.
Pricing reviewed: June 2026.
Are you a material supplier or hardware store?
Put this calculator on your own website, branded to you, visitors get an instant estimate, you get a qualified enquiry with their details.
Understanding roof sheetings in Australia
Metal roof sheets have an effective cover of about 760mm. This calculator works out how many sheets you need across the roof width, and the lineal metres to order.
Add ridge capping and flashing to the order. The bill of materials helps you price up a re-roof, shed or patio job.
Frequently asked questions
How many roof sheets do I need?
Divide the roof width by the sheet cover width (about 760mm) for the number of sheets, then multiply by the slope length for lineal metres. The calculator does both.
How much do roof sheets cost?
Colorbond/metal roof sheeting is typically $15–$25 per lineal metre in 2026. The calculator estimates the total from your dimensions.
What else do I need besides sheets?
Ridge capping, flashing, roofing screws and sometimes insulation/sarking. The calculator lists the screws and flashing length.
Run a material supplier or hardware store? Add this roof sheeting calculator to your own website →