2.272 measurement nouns used as modifiers

Measurement nouns can also be used as modifiers in front of a noun when you want to describe things in terms of their measurements.

• ...a 5 foot 9 inch bed.
• ...70 foot high mounds of dust.
• ...12 x 12 inch tiles.
• ...a five-pound bag of lentils.

Note that the measurement noun is singular.