Exhibit 23.1 S-8 Filed July 6, 2015

We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of LMI Aerospace, Inc. (“LMI”) of our report dated March 16, 2015 relating to the financial statements, financial statement schedule and the effectiveness of internal control over financial reporting, which appears in LMI’s Annual Report on Form 10‑K for the year ended December 31, 2014.