POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that I, Elizabeth Murphy
Lilly, hereby constitute and appoint James S. Porter,
Patricia A. Beithon, David Wright Walstrom and Judith A. Stone
and each of them, my true and lawful attorneys-in-fact and agents,
with full power of substitution and resubstitution for me and in
my name, place and stead, to sign any reports on Form 3 (Initial
Statement of Beneficial Ownership of Securities), Form 4 (Statement
of Changes in Beneficial Ownership of Securities) and Form 5 (Annual
Statement of Changes in Beneficial Ownership of Securities) relating
to transactions by me in Common Stock or other securities of Apogee
Enterprises, Inc. and all amendments thereto, and to file the same,
with the Securities and Exchange Commission and the appropriate
securities exchange, granting unto said attorneys-in-fact and agents,
and each of them, or their substitutes, full power and authority to do
and perform each and every act and thing requisite or necessary to be
done in and about the premises, as fully to all intents and purposes as
I might or could do in person, hereby ratifying and confirming all that
said attorneys-in-fact and agents, and each of them, or their substitutes,
may lawfully do or cause to be done by virtue hereof.  This Power of
Attorney shall be effective until such time as I deliver a written
revocation thereof to the above-named attorneys-in-fact and agents.


By: /s/ Elizabeth Murphy Lilly
        Elizabeth Murphy Lilly

Date:  January 14, 2020