X0306 4 2019-02-25 false 0000912562 GIBRALTAR INDUSTRIES, INC. ROCK 0001702879 Watorek Jeffrey J. 3556 LAKE SHORE ROAD P.O. BOX 2028 BUFFALO NY 14219-0228 false true false false VP, Treasurer, Secretary Common Stock 2019-02-25 4 A false 2000.00 13.72 A 5934.00 D Common Stock 2019-02-25 4 D false 2000.00 42.56 D 3934.00 D Common Stock (401k) 333.905 I 401k Discretionary RSU (May 2017) 2000.00 D Performance Stock Units (April 2017) 627.00 D Performance Stock Units (March 2018) 3608.00 D Restricted Stock Units (LTIP 3/1/2018) 630.00 D RSU (LTIP 4/3/2017) 380.00 D RSU (LTIP 9/4/2015) 309.00 D RSU (LTIP 9/6/2016) 284.00 D Option (September 2009) 13.72 2019-02-25 4 D false 2000.00 0.00 D 2019-09-14 Common Stock 2000.00 0.00 D Option (September 2010) 8.90 2020-09-13 Common Stock 2000.00 2000.00 D Option (September 2011) 9.74 2021-09-13 Common Stock 2500.00 2500.00 D Represents acquisition of shares of common stock acquired in connection with Reporting Person's exercise of management stock options. Represents disposition of shares of common stock acquired in connection with Reporting Person's exercise of management stock options. Represents the exercise of management stock options. Twenty-five percent (25%) of the total number of options granted vest and become exercisable on each anniversary grant date. /s/ Paul J. Schulz, Attorney in Fact for Jeffrey J. Watorek 2019-02-27