We always recommend you hire a professional artificial grass installer to install the putting green and fringe grass. But if you are extremely handy and are capable of building a synthetic putting green in a day or two, you can do the DIY installation by following the guide below:
Site Selection and Sketch Layout
Decide where you’d like for your green to be, and how much space to devote to it. Ideally you would like it to be the same shape and size of a traditional putting green, but a more compact straight green will also work.
Map out your area. Mark out the dimensions of your putting green design. Be sure to include space for your fringe if you will be including them in your design. Remove all organic objects(sod, soil, grass and other debris) to a depth of 6”.
Replace the 6” of removed organic objects with ¾” crushed gravel to a height of 4”. Rake and water to create the desired surface with any undulation or elevation designs you want in your putting green. Proper evacuation of water will be necessary if the surfaces do not drain well. Next, compact the gravel with a plate compactor for a tight lock. Add 1/2”-1” of crusher fines to create the smoothest surface possible. Water, compact, and use a roller to remove any lines and bumps.
Install Putting Green Cups
Set cup sleeves in their desired locations. Using a post digger, remove gravel so that the sleeve sits as flush with the surface as possible. Using a hand tamper on top of the sleeve, gently compact until the sleeve is completely level with the final grade. Once you have completed this, slowly fill any surrounding area with crushed gravel. Water and compact with a hammer. This is the most important area so take the time to compact it tightly. Your cup should sit in the sleeve with the lip 1/4” above the base
Lay the Synthetic Putting Green
Roll synthetic putting turf over the project area. Always roll turf in the same direction and overlap multiple rolls by 2”-3”. Once in place, chalk out your desired shape. When you are happy with the shape cut out using an artificial grass carpet knife.
Cut the bottom piece of turf two tufts in from the factory edge. The top piece will need to be trimmed as close as possible to the adjacent turf without overlapping. You are always better with a small gap than too tight of a seam which will compromise the surface. Place the seaming tape as close to centered as possible. Roll turf back 6” on either side from the seam and temporarily secure. Spread glue evenly with a 1/8” notched trowel. Bring edges back together in a zipper fashion to ensure backing buts up nicely. Be careful not to get glue on grass blades. Depending on humidity and climate the glue will have differing dry times. During that time walk the seam but do not place heavy objects on top of the turf.
Infill Silica Sand
Infill silica sand infill. Preferably using a drop spreader over the entire putting surface. Brush in using either a broom or power sweeper.
Fringes can be very specific to your project; for the best results, consult with an experienced installer. They will be able to advise you best based on your putting green shape and fringe size.