Oak plank: where to get it
| Source | Quantity | Chance per roll |
|---|---|---|
 Armoured zombie (Melee) | 5 | 6/128 |
| Armoured zombie (Zemouregal's Fort) | 6 | 6/128 |
| Barbarian Assault/Gambles (Low) | 60–80 | 1/32 |
| Barracuda salvage | 1 | 1,250/28,401 |
 Calvar'ion (Normal) | 220 | 5/128 |
 Eclectic impling | 4 | 1/10 |
| Eclectic impling jar | 4 | 1/10 |
| Fishy salvage | 1 | 20/467 |
 Gang boss (Male) | 10–20 | 40/256 |
 Gangster (Level 45 (1)) | 10–20 | 40/256 |
 Kraken (Kraken) | 60 | 3/128 |
| Large salvage | 1 | 50/2,218 |
 Maniacal monkey | 1 | 3/20 |
 Maniacal Monkey Archer | 1 | 3/20 |
| Marlo's crate | 10 | Always |
| Medium port reward bag | 11 | Unknown |
| Reward casket (elite) | 60–80 | 1/32.3 |
| Reward pool | 15–25 | 1/32 |
| Small port reward bag | 10–12 | Unknown |
| Small salvage | 1 | 50/1,721 |
| Supply crate (Mahogany Homes) | 28 | 10/144 |
| Supply crate (Mahogany Homes) | 29 | 15/144 |
| Supply crate (Mahogany Homes) | 30 | 5/144 |
| Tiny port reward bag | 10–20 | Unknown |
 Vet'ion (Normal) | 400 | 5/126 |
 Young impling | 1 | 1/100 |
| Young impling jar | 1 | 1/100 |
| Zombie (Tarn's Lair) (Low level) | 1 | 2/128 |