If replacing natural grass with Bella Turf, you first want to remove your existing grass, and soil to a depth of 4 inches. If new construction, allow for 4 inches of aggregate on top of your final grade. Ideally your sub-base should slope towards the direction you wish the water to drain . Lay landscape fabric or filter cloth over the entire area, overlapping the seams. Cover Fabric with 4 inches of 3/4″ permeable aggregate, or road base. Fill any low spots, shave of any bumps, water again, and give it a final compaction.
Begin by marking out the overall shape of your desired putting green, including the fringe. With a flathead shover, cut a sharp edge around your entire project area, and remove existing grass and, and soil to a depth of 6 inches. Place 2 inches of 3/4 ” clear crush or drain rock over the entire area, rake evenly, and compact. Roll out landscape fabric or filter cloth over the clear crush, overlapping at the seams. Place 4 inches of 3/4″ permeable gravel, or road base on top of the fabric, and rake evenly. Add any desired elevation changes you wish to see in your putting green, water thoroughly, and compact. Fill any low sports, shave of any bumps, and give it another compaction. Finish off with 1/2″ of crusher fines, or rock dust. Spread evenly, water, and compact. Use a lawn roller to remove any lines or bumps left by the compactor.
Mark out cup locations and dig a 12 inch deep hole with a post hole digger. Fill the bottom 4 inches with 3/4″ clear crush, and compact with a 2×4, and hammer. Cover with landscape fabric, and add 2-3 iinches of 3/4″ aggregate. Place the cup in the hole, and pack it down until it sits 1/4″, with a 2×4, and a hammer. Hold the cup in place, and fill the gaps around the cup, with 3/4″ aggregate. Add 2-3″ at a time, and pack down with the butt of the hammer. Finish, and pack smooth with a 2×4, and a hammer.