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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a floor through which
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a floor through which" is correct and usable in written English.
It can be used to describe a floor that has openings or passages allowing movement or visibility through it. Example: "The building features a glass floor through which visitors can see the exhibits below."
✓ Grammatically correct
News & Media
Wiki
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
3 human-written examples
He had built a floor through which he could not fall.
News & Media
Likewise, when previous generations declared that every citizen of this country deserved a basic measure of security — a floor through which they could not fall — we helped millions of Americans live in dignity, and gave millions more the confidence to aspire to something better, by taking a risk on a great idea.
News & Media
Whereas a year ago the growing economy (domestic and global) was the catalyst for higher markets, today its the safety net; establishing a floor through which I think were unlikely to fall (unless news and events change dramatically).
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Lower-ranking detainees who refused to "confess" were stripped naked and placed in a small dark room with a metal floor "through which electrical current is pulsated".
News & Media
Others are on a dance floor, through which some of the action moves on raised platforms, pushed by functionaries.
News & Media
In the final room of the exhibition space, they've cut a hole in the floor through which you can see down into this centuries-old cloaca.
News & Media
There was the one about the Texas tour when the dancers' train broke down and they were herded onto a bus with a large hole in its floor, through which they could see the road beneath them as they sped over it.
News & Media
That sense of venture — and adventure — is also the subject of a new, untitled exhibition on the 80th floor, through which three and a half million visitors a year will walk, on their way to the elevators leading upward.
News & Media
It consists of an area some 7 feet high, 11 feet wide, & 5 deep, with grilles in the ceiling & floor through which a wall of air flows in a downward direction, insulating the inside from the out.
News & Media
It has four floors: a ground floor that serves as a basement and a vaulted stone support for the chamber above; the first floor, through which the keep was accessed; two upper floors and a roof walk, which was probably covered by a pentice and defended by battlements.
Wiki
Walsh lives in an apartment above, with windows in the floor through which he can view this Australian masterpiece every day.
News & Media
Expert writing Tips
Best practice
Use "a floor through which" to precisely describe a structural element that allows passage or visibility to what is beneath. This phrase is especially effective when discussing architectural designs or technical specifications.
Common error
Avoid confusing "through" (meaning passing from one side to another) with "threw" (the past tense of throw). "A floor threw which" makes no sense grammatically or contextually.
Source & Trust
86%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a floor through which" functions as a descriptive element, typically acting as an adjective modifying a noun. It specifies that the floor has a particular characteristic: it allows something to pass through it. Ludwig AI confirms its usability in written English.
Frequent in
News & Media
67%
Wiki
22%
Science
11%
Less common in
Encyclopedias
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
The phrase "a floor through which" is grammatically sound and serves to describe a floor that allows passage or visibility. As Ludwig highlights, it’s deemed usable in written English but occurs rarely. Predominantly found in news and media sources, its register is generally neutral to formal, often used in descriptive or technical contexts. When using this phrase, ensure you're clearly describing a floor with an opening or transparent section, and avoid confusing "through" with "threw". Alternatives such as "a floor with an opening" or "a floor that allows passage" can also be considered depending on the context.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a passage through which
Replaces "floor" with a more general term, focusing on the idea of a route or way through something.
a surface with an opening
Simplifies the structure, emphasizing the presence of an opening in a surface.
a plane allowing transit
Emphasizes the ability to pass through the floor.
an area with an aperture
Highlights the presence of an opening in a specific area.
a level featuring a conduit
Uses more technical terms to describe a floor with a channel or pipe.
a platform pierced by
Describes a platform with something going through it.
a structure incorporating a channel
Highlights that the floor is designed to include a channel or passage.
a base containing a perforation
Focuses on the presence of a hole or puncture in the base.
a layer penetrated by
Focuses on the act of something going through a layer.
a traverse in the flooring
Uses the word traverse to define the pathway into the flooring.
FAQs
How can I use "a floor through which" in a sentence?
This phrase typically describes a physical structure. For example, "The exhibit featured a glass "floor through which" visitors could view the archaeological dig below".
What are some alternatives to "a floor through which"?
Consider using phrases like "a floor with an opening", "a floor that allows passage", or "a floor featuring a conduit" depending on the specific context.
Is "a floor through which" formal or informal?
This phrase is generally neutral in tone and can be used in both formal and informal contexts, though it is more common in descriptive or technical writing.
What does "a floor through which" typically refer to?
It usually refers to a physical structure that has an opening or transparent section that allows one to see or pass through it, like a glass floor in a museum.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
4.1/5
Expert rating
Real-world application tested