THE PATIO BLOC - A FAVORITE OF DIYERS Its speed of installation, its robustness, its solidity and its affordable cost have made the Patio Bloc a favorite with DIYers. Thanks to continuous improvements, the Patio Bloc 4×4 is now more ergonomic. The dimension of the openings has been redesigned and redesigned to allow better use. In addition, we have added flow strips to promote ventilation. Equipped with a central hole to fix a post, the Patio Bloc will be your ally during your landscaping projects.