There is one being a wall, the other one a floor.

有一个做为墙面，另一个做为地面。

youdao

She wore a floor length bridal gown.

她穿了一件拖地婚纱。

《柯林斯英汉双解大词典》

I hankered after a floor-length brown suede coat.

我渴望一件垂地长度的棕色麂皮大衣。

《柯林斯英汉双解大词典》

"And I prayed to God to help me." NHTSA blamed a floor mat, but she blames the electronics and says Toyota dismissed her concerns.

VOA: special.2010.02.26

Most of the children when they travel there, we would probably go to her apartment But they would probably have a charming mill on the floor.

大多数孩子,去那旅游时，都有可能去她家,她们家的地上可能会有,一台漂亮的磨粉机。

麻省理工公开课 - 媒体、教育、市场课程节选

But there's a lot of, like girls live right next to guys and it's on the same floor

但是有好多例子如，在同一楼层女生就住在男生隔壁，

住宿环境怎样？ - SpeakingMax英语口语达人

But there is little agreement about how to put a floor under the exchange rates.

ECONOMIST: East Asia

This increased demand will eventually start to put a floor under home values later this year.

FORBES: Connect

Primark occupied a floor of the collapsed building and workers there were suppliers to the brand.

BBC: Bangladesh tragedy: UK and companies 'must do more'