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@JudyB wrote:

Purchased 1/2019

2019 TP added upgrades ( flooring) and in original return I added this cost to the 39 year dep of the building

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Was the flooring adding BEFORE or AFTER the building was "placed in service"?

If it was BEFORE, then you correctly added that cost to the Basis for depreciation.  It is depreciated over 39 years.

If it was AFTER, then you add flooring as a SEPARATE asset, and it would seem to qualify for the 15 year "Qualified Improvement Property" which also qualifies for Bonus Depreciation.