Anchor Roller Riser Pad
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I made this riser pad to fit under the roller and let it clear over the toerail. I is made from two pieces of pre-made fiberglass that I got from McMaster Carr. The red is what they call electrical grade, the green is the regular type. These are extruded fiberglass panels. The are very consistent in quality and thickness. I glued these together with epoxy then cut the general shape with a jig saw. Final fitting was done with a drum sander on a drill. The red is 5/8 thick, the green is 3/8 for a total of 1". This matches up nicely with the toerail.

I will either glue the riser pad to the deck with epoxy or simply bolt it down. If I glue it I'll fair in the top and probably add a layer of glass for a better surface. Then I'll paint the area with a two part polyurethane (car paint) to match the deck as best I can. It might be better to just bolt it down and let the anchor roller fasteners help secure it.

That scrappy looking hole in the top of the toe rail is the original OEM mounting hole for the roller. Not what I would call a secure mount. The underside of that hole is up in the recess of the toerail molding and is hard to get to. There was no backing, not even a washer. I have glassed over all that and I'll fill in under the toerail to get a flush bottom for a large backing plate.


Foredeck Drawing with measurements
McMaster Carr Industrial Supply
These are the McMaster fiberglass panels I used to make the riser pad:
8537K27 Fiberglass (Frp) Sheet 3/8" Thick, 12" Width X 12" Length, Green
8549K49 Electrical-Grade Fiberglass Sheet (GP03) 5/8" Thick, 12" X 12", Red