Shovelful

One shovelful of dirt makes a molehill; a million shovelfuls make a mountain.

Two workers each had a shovelful of snow. There were two shovelsful of snow.

As to the fireman, the sight of him at work, swinging round with his shovelful of coal and at the same moment lightly depressing his right heel and so working the pedal which causes the steam-operated firedoors to open like magic in front of the shovel, was always a pleasure.

The doors are at the right level for firing, which normally is down one side of the firebox at a time, unlike our own practice, which is to fire each side of the firebox with alternate shovelfuls.