Security Door Controls Blog

Come visit us at ISC West 2024, booth # 21109! Since 1972, SDC's products have been made in America while most of our larger competitors build overseas.

Our pioneering Spacesaver® bolt lock design changed the industry. Today, our complete line of bolt locks meets almost any code requirement.

300+ SDC products are available for shipment within two business days. 

With a second-to-none complementary offering of mounting brackets, kits and hardware, EMLocks can meet virtually any application.

Art Geringer was born 100 years ago making June 10th a significant event in our company history and in the access control and door hardware industry.

This post is the third in a series to address concerns expressed on our social media platforms regarding the proper application of Delayed Egress Systems.

This post is the second in a series to address concerns expressed on our social media platforms regarding Delayed Egress Systems.

This post is the first in a series to address concerns expressed and to provide clarity and resources regarding Delayed Egress systems.

SDC expands for growth. New Campus Building #2 has undergone site improvements and is now ready to accommodate the first phase of a planned expansion.

SDC offers a variety finishes, including black, from our robust toolbox of code compliant products to form a turnkey solution for almost any door opening.