First, I made my wooden frame to match each hatch surround inside the boat. On the back side of the frame, I routed a 5mm groove in a square pattern. I used a glazing rubber which is 5.5mm in diameter with a hole through the middle. It also had a row of longitudinal ridges on the outside for gripping. This allowed the rubber to be compressed down from 5.5mm to about 4.5 mm. A polyurathane was applied to the frame, front and back.
I placed the mesh over the frame with about an inch extra on the dimensions for each side of the routed groove. Starting at one side, I pushed the glazing rubber into the groove with the mesh. Once done, I went to the other side and as I pushed it in, the mesh starts to tighten up. With the remaining mesh still exposed out of the groove, I ran a sharp blade along the edge, of the outside of the groove, to trim off the mesh.
|Finished product. Note rain on hatch!