11” x 2-1/4” pvc sleeve with cap will be permanently installed below ground level

how would those numbers be transferred in ap style. I tried looking it up and I'm confused.

I don't recall that AP style for written material specifies. The AP broadcast style manual would have the dimensions spelled out so as to make it easy to read aloud.

Oops, that was me above. Sorry.

In AP style, measurements are typically converted to numerals and followed by the unit of measurement spelled out in lowercase. Here's how you would convert the measurements you provided:

11 inches x 2 1/4 inches PVC sleeve with cap will be permanently installed below ground level.

In this case, "inches" is spelled out because it is part of a measurement. However, for general use, the AP style recommends using "in." as the abbreviation for inches.