The Ultimate Guide to Thin Joint Masonry
https://civilguidelines.com/construction/thin-joint-masonry.html
Thin joint masonry, also known as thin bed or thin set masonry, is a construction method where mortar joints are significantly thinner compared to traditional masonry techniques. Instead of using standard mortar, thin joint masonry utilizes specialized thin-bed mortar, typically with a thickness ranging from 1 to 3 millimeters.