Exhibit 99.1 THE TILE SHOP REPORTS FOURTH QUARTER AND FULL-YEAR 2023 RESULTS MINNEAPOLIS – February 29, 2024 – Tile Shop Holdings, Inc. (Nasdaq: TTSH) (the “Company”), a specialty retailer of natural stone, man-made and luxury vinyl tiles, today announced results for its fourth quarter and full-year ended December 31, 2023. Fourth Quarter 2023 Summary Net Sales Decreased 3.4% Comparable Store Sales Decreased 3.2% Gross Margin of 64.7% Net Income of $0.6 Million; Adjusted EBITDA of $6.6 Million Diluted Earni ...