<page_title> Brick </page_title> <section_title> Optimal dimensions, characteristics, and strength </section_title> <table> <cell> 7⅝ × 3⅝ × 2¼ in <col_header> Imperial </col_header> </cell> <cell> 194 × 92 × 57 mm <col_header> Metric </col_header> </cell> </table>
The brick dimensions were ​7 ⁵⁄₈ × ​3 ⁵⁄₈ × ​2 ¹⁄₄ inches (194 × 92 × 57 mm).