Measure the height of the fence from the ground up to the top fence rail with a tape measure. This will assist you in finding the correct height of mesh. It comes in heights of 2 feet to 6 feet.
Lift the roll of mesh vertically, next to the first fence post in the fence line. Unroll a couple of feet of it.
Staple the mesh to the fence post every 6 inches.
Unroll the mesh to the next fence post in the fence line. Pull it tight and staple it the same way you did the first post.
Walk back along the split fence rails between the two fence posts and staple the mesh every 12 inches. Stretch the mesh from the ground up to ensure it stays tight.
Go back to the roll of mesh and unroll it to the third fence post. Pull it tight and staple it. Walk back and staple it to the fence rails. Repeat this process until the entire split-rail fence has been covered with mesh.