X0306 4/A 2018-12-31 2019-01-02 false 0000912562 GIBRALTAR INDUSTRIES, INC. ROCK 0001543942 Murphy Timothy F. 3556 LAKE SHORE ROAD P.O. BOX 2028 BUFFALO NY 14219-0228 false true false false Senior VP and CFO Restricted Stock Unit (MSPP Post-2012) 2018-12-31 4 A false 719.57 36.48 A Common Stock 719.57 21360.84 D Represents restricted stock units allocated to the Reporting Person after 2012 with respect to the Reporting Person's deferral of a portion of his base salary pursuant to the Company's Management Stock Purchase Plan. Restricted stock units are payable solely in cash in one lump sum payment or in five (5) or ten (10) consecutive, substantially equal annual installments, whichever distribution form is elected by the Reporting Person, beginning six (6) months following termination of service as an officer of the Company. Each restricted stock unit is converted to cash in an amount equal to the fair market value (200 day rolling average) of one share of the Company's common stock on the date of termination of the Reporting Person's service as an officer of the Company. Reported to reflect an inadvertent administrative error with respect to the initial date of the underlying transaction. /s/ Paul J. Schulz, Attorney in Fact for Timothy F. Murphy 2019-01-04