| Task ID | Task | Preceding event | Nodes |
|---|---|---|---|
| A | Make enquiries and order all materials required | Start | 1 |
| B | Wait for bricks, sand and cement to arrive | A | 2 |
| C | Clear vegetation from the site | A | 2 |
| D | Order concrete to be delivered | A | 2 |
| E | Dig the trench | C | 4 |
| F | Pour the footings | E | 5 |
| G | Footings curing time | F | 6 |
| H | Load the bricks on the site | B | 3 |
| I | Mix the mortar and lay the bricks | H | 7 |
| J | Clean rubbish from the area | I | 8 |
| Finish | J | 9 |