"Ladrillos" (conventional bricks) were manufactured in much the same manner as adobes, with one important difference: after forming and initial drying, the bricks were fired in outdoor kilns to ensure a much greater endurance than could be achieved through merely sun-drying them. Common bricks typically measured ten inches (250 mm) square and were thick. Square paving bricks were equal in thickness to the common variety, but ranged from across. Many of the structures erected with this type of brick remained standing long after their adobe counterparts had been reduced to rubble.