Just ensure you’re not rolling around an acute personal injury, suggests Bogowith. Does foam rolling enable muscle mass expansion? Sill (for exterior doors) – A horizontal sill plate under the door that supports the door body. Just like a window sill but for your door SeaWorld calls it 853 toes https://www.expressplants.co.uk/roller-garage-door-repair-ensuring-smooth-operation-and-longevity/