off-the-shelf

Adjective

idiomatic not-comparable

(idiomatic) As purchased or as commonly available, without modification or customization.

Japanese Meaning

既製品・標準仕様の / 市販の（そのまま使用できる製品） / カスタマイズされていない、変更のない製品

Because of the tight deadline, the team chose an off-the-shelf component rather than designing a custom one.

納期が厳しかったため、チームはカスタム設計の代わりにそのまま使える市販の部品を採用した。

Sense（1）

(idiomatic) As purchased or as commonly available, without modification or customization.

We can build a specialized part for you, but an off-the-shelf product will probably cost less.