Density and DM% of silage and hay
| Silage types | DM% | Wet weight silage kg/m³ in stack or hay in bale | DM silage kg/m³ in stack/bale | Density in wagon kg/m³ in stack |
| Direct cut grass | 13-18 | 700-900 | 120-160 | - |
| Wilted grass | 20-30 | 600-800 | 160-180 | - |
| Baleage | 35-40 | 500 | 130-180 | - |
| Hay - small bales | 85 | 18-25 | 15-20 | - |
| Hay - round bales | 85 | 180-300 | 150-250 | - |
| Maize stack | 33-38 | 500-760 | 170-250 (average 200) |
80-120 |
| Maize bunker | 33-38 | 600-820 | 200-270 (average 220) |
80-120 |
| Maize deep bunker not common 5% of bunkers) |
33-38 | 760-900 | 250-300 | 80-120 |
Storage space required for grass and maize silage
| Silage storage | Tonnes DM multiplied by: | Example |
| Maize stack | 5.0 | e.g. 50 t DM x 5.0 = 250m³ |
| Maize bunker | 4.4 | e.g. 50 t DM x 4.4 = 222m³ |
| Grass silage | 5.7 | e.g. 50 t DM x 5.7 = 285m³ |
Density and storage of other feeds
| Density (kg/m³) |
Storage (m³/tonne) | |
| Grains - barley |
630 | 1.6 |
| Grains - wheat |
760 | 1.3 |
| PKE |
630-750 | 1.35-1.6 |
| Carrots | 630 | 1.6 |
| Onions (dry) | 630-725 | 1.4-1.6 |
| Potatoes | 660 | 1.5 |
