Our group has previously realized region-selective super-spread wetting through surface fine crevice structures fabricated by laser irradiation or reduction-sintering of oxide powder and joined metals in microscopic regions by super-spread wetting. A new approach suitable for wide-area joining was investigated in this study. Using a metal mesh with high porosity, we produced a new structure termed "interface fine mesh structure" that can promote super-spread wetting. As well as successful super-spread wetting of liquid tin into a copper interface fine mesh structure, copper blocks were also joined by super-spread wetting.