deep floor

American  

noun

Nautical.

1. any of the floors toward the ends of a vessel, deeper than those of standard depth amidships.

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Example Sentences

One problem is simply with the shape of office buildings: Their deep floor plates mean it’s hard for natural light to reach most of the space once it’s divided up into rooms.

From Slate

Liu also pointed out that the architectural elements common in office buildings — deep floor plates, closely spaced structural columns and dedicated core spaces for elevators and utilities — make such conversions a challenge for developers.

From Washington Post

The project by Gasmeth Energy, owned by U.S. and Nigerian businessmen and Rwandans, would suck gas from the lake’s deep floor and bottle it for use as fuel.

From Reuters

The workers were heading to the mine’s 2,300-foot deep floor to start their overnight shift late Wednesday when the two-level elevator got stuck.

From Washington Times

The workers were heading to the mine's 2,300-foot deep floor to start their overnight shift late Wednesday when the two-level elevator got stuck.

From US News