Remove the outboard, trim tabs, scuppers, and the aluminum transom cap.
For a "forever" boat like a Grady, using a rot-proof core adds immense resale value and peace of mind. 🪜 The Rebuild Process at a Glance grady-white-transom-repair
The only way to be 100% sure is to drill small exploratory holes from the inside . If the shavings are dark, wet, or smell like mulch, the core is gone. 🏗️ Repair Options: Wood vs. Composite Remove the outboard, trim tabs, scuppers, and the
Only use Marine Grade Plywood (like Okoume or Meranti). Never use pressure-treated wood, as the resins often won't adhere properly. 2. The Composite (Coosa Board) Upgrade If the shavings are dark, wet, or smell
Use a multi-tool or circular saw to cut away the outer fiberglass skin . Carefully pry it off to reuse later if possible.
Coosa Bluewater is a fiberglass-reinforced foam that is 100% rot-proof. Cons: Significantly more expensive than wood.
Cost-effective; extremely strong when bonded correctly. Cons: Can rot again if water penetrates the seal.