To install parking bollards, you will need to first choose the appropriate location for the bollards and mark the spots where they will be installed. Then, you will need to dig holes for the bollards using a power auger or a manual post-hole digger. The depth of the holes will depend on the type of bollards being installed and the ground conditions. Once the holes are dug, you can then place the bollards in the holes and secure them in place using concrete or another suitable material. It's important to make sure the bollards are installed securely and at the correct height to effectively control vehicle access and prevent damage to vehicles or property. If you are unsure about how to properly install parking bollards, it's best to consult with a professional bollard installation company like Barrier Group for assistance.