Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements listed below of Leggett & Platt, Incorporated of our report dated February 22, 2018 relating to the consolidated financial statements, financial statement schedule and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

1.    Form S-3, Registration No. 333-203064

2.    Form S-8, Registration No. 333-60494

3.    Form S-8, Registration No. 333-82524

4.    Form S-8, Registration No. 333-115845

5.    Form S-8, Registration No. 333-124735

6.    Form S-8, Registration No. 333-150758

7.    Form S-8, Registration No. 333-157535

8.    Form S-8, Registration No. 333-157536

9.    Form S-8, Registration No. 333-166960

10.    Form S-8, Registration No. 333-181432

11.    Form S-8, Registration No. 333-202727

12.    Form S-8, Registration No. 333-203992

13.    Form S-8, Registration No. 333-203995

14.    Form S-8, Registration No. 333-210077

/s/ PricewaterhouseCoopers LLP

St. Louis, Missouri

February 22, 2018