Anybody who has used a tape measure before has probably noticed these diamond shapes on their measure tape unless they have been using a cheap tape measure, in which case the marks probably lack. If you decide to buy an affordable tape measure, you will probably notice them and they are not just for design purposes, they actually are very helpful.
These marks in the shape of a diamond actually mark the center of the distance between 2 studs in a building. You will notice that they are always placed at a 19.2-inch mark. If you are using your tape measure for a DIY project, you might not get the chance to use this feature very often. However, professionals use it on a daily basis.
If you decide to make changes to your interior design on your own, however, you will find these black diamonds very useful and you won’t be sorry that you have purchased one of the affordable tape measures on the market.