The bottom of the box was made of a steel grate.

At the top of the conveyor belt the gravel disappeared through a heavy steel grate.

They slipped under the steel grate just over the bilges.

There's a passage to the main tunnel that's blocked off by a steel grate.

The next bad thing happens when a steel grate falls down to block the doors.

A familiar noise: that of the steel grate they had opened to go down there.

When would they next hear the scrape of the steel grate on the stone landing?

The fire that burnt in the wellfurnished steel grate became as a magnet.

Under the missile was a steel grate over a black hole.

Their operators work on a dozen tiers of steel grate.