Patio block question

[pkzmf]

Buying a 27" ag round tonight they provide the blocks at install time...I live in west pa along the oh line. heavy frost lines here...I was not able to open my screen door this past winter (which was mild) all of the way do to the rise in the patio bricks. I would also check with the warranty with the pool if installing it yourself...one less thing they can say you did wrong if anything would go wrong.