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AS 1428.1 Ramp Calculator
Enter any two values and press Calculate to see the resolved dimensions, a ramp diagram and compliant ramp types.
Landing size reference
Minimum landing dimensions vary with the direction of travel.
| Direction of travel | Min width | Min length |
|---|---|---|
| Direction of travel | 1000 mm | 1200 mm |
| 90° turn | 1500 mm | 1500 mm |
| 180° turn | 1540 mm | 2070 mm |
| T-junction (90° either side) | 2000 mm | 1500 mm |
Always cross-check with AS 1428.1 and NCC. Do not rely solely on this tool for compliance — use it as a general guide only.