There are different types of pressure-treated plywood some better than others but most folks on the restoration forums stay away from it.

Pontoon aluminum deck vs wood. Pontoon logs are not wooden logs theyre in fact made from aluminium. Lightweight easy to install strong easy to clean and maintain lighter than wood rust-resistant stain-resistant and doesnt need covering. Insects are also attracted to wood which can damage your dock.

On a 32 vessel I would say no less than 316 for the hull maybe even step up to 14. In fact more often than not aluminum decking is twice as expensive as traditional wood or even composite decking. The next alternative decking material is PVC or plastic planks which are sturdier than they sound.

The only wood is the plywood base to the sun deck which can be easily replaced when the time comes. As you already saw in the table above aluminum decking costs more than any type of wood or composite. Fiberon Paramount PVC Decking in Sandstone.

There is a chemical or electrical reaction between the wood and the aluminum. Everyone after that swapped over to composite wood to save on costs. While they cant hold a candle to aluminum or wood in that regard they offer some interesting advantages that make it an excellent choice for homeowners.

Im pretty sure most toon manufacturers go with wood because wood is much cheaper to pruchase and to work with. What you also have to realize is that a wood boat will deteriorate over time even with care. In my experience the aluminums not any noisier.

Marine plywood decking produces a boat thats structurally stronger than aluminum decked and a. Aluminum decking for boats and boat docks has become a popular choice in pontoon boat decking and pontoon boat manufacturing and building since aluminum is easy to maintain lightweight and strong. The marine industry was granted an exemption with the understanding that wood would not be cut and would be used in whole sheets.