The carpet squares provide a convenient way for you to
DIY
.  And it’s suitable for the existing floor surfaces. Thus, to install the modular carpet on the concrete, you need to first start by checking on the moisture of the concrete surface. So, if the level is high, then you might need to apply the sealant before installation. Next, you need to make the chalk lines so that the tiles are placed properly. Thus, you need to measure the centre point of each of the opposing walls. And you need to take on the chalk string to make an X mark.
The lines should interact with one another in the middle of the room. And don’t remove the adhesive backing or glue the surface once you are sure that the tiles fit tightly. And there are no gaps in between the periphery of the room. So, start installing from the centre.