| Brolly Sheet Sizing | Centre Panel | Side Flaps |
| Twin | 110 x 95cm / 44" x 38" | 45cm / 18" each side |
| Full | 137 x 95cm / 54" x 38" | 45cm / 18" each side |
| Queen / UK King | 155 x 95cm / 61" x 38" | 75cm / 30" each side |
| King | 200 x 95 cm / 79” x 38” | 75 cm / 30” each side |