A grating (plural: grating ) is a grating that can be walked on . Originally, wooden gratings were used to safely cover hatches in the deck of ships , while fresh air and light could pass through.
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The mostly square holes had a side length of only a few centimeters so that you couldn't get stuck with your shoe heel. The grating to cover the hatch was mostly removable or hinged.
On many classic yachts, the cockpit flooring consists of a grating. If a lot of water penetrates the cockpit, it can run through the grating and flow into a drain underneath without the floor being permanently under water.
Nowadays, gratings are industrially manufactured from metal and are used wherever a light, water and air permeable, accessible cover is required.
^ Otto Lueger: Gräting . In: Lexicon of all technology and its auxiliary sciences . tape4 . Stuttgart, Leipzig 1906, p.605 ( zeno.org [accessed September 14, 2015]).
