Technical Asssistance

For answers to technical questions about steel doors and frames, contact SDI Managing Director Jeff Wherry by email jjw@wherryassoc.com or call 440-899-0010 (M-F 9 a.m. to 4 p.m. Eastern time).

The following resources on the SDI website provide technical information that may be helpful:

• Frequently Asked Questions
• SDI Technical Documents
• ANSI Standards
• SDI Industry Alerts

SDI Managing Director
Jeff Wherry