What Plywood to Use for Boat Floor?

When selecting plywood for boat flooring, durability and water resistance are crucial factors. The right plywood can ensure years of reliable service in marine conditions. Here are the best plywood options available at our store for boat floor construction:

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Recommended Plywood Thickness

The thickness of your boat floor plywood is critical for structural integrity:

• Minimum recommended thickness: 1/2″ (12mm)
• Standard thickness: 5/8″ (15mm)
• Heavy-duty applications: 3/4″ (18mm)

Choose thicker plywood for:

• High-traffic areas
• Areas supporting heavy equipment
• Larger boats (over 20 ft)
• Extended spans between supports

Where to Buy Marine Plywood

Marine-Grade Options

Baltic Birch Plywood

• Premium choice for boat flooring
• Exceptional strength and dimensional stability
• Available in 5/8″ (15mm) and 3/4″ (18mm) thickness
• All-hardwood core with no voids
• Superior screw holding capacity

Check out our Baltic Birch Plywood

Order now: Quote Request

Exterior Grade Plywood

• Highly water-resistant
• Type I waterproof glue bond
• Available in 1/2″ (12mm), 5/8″ (15mm), and 3/4″ (18mm)
• Excellent structural strength
• Cost-effective solution

Check out our Exterior Plywood

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ACX Plywood

• One side A-grade, one side C-grade
• Exterior-grade adhesive
• Thicknesses: 1/2″ (12mm), 5/8″ (15mm), 3/4″ (18mm)
• Ideal for painted applications
• Good moisture resistance

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Order now: Quote Request

Additional Suitable Options

Hardwood Plywood

• Premium appearance
• Strong internal bond
• Available in various species
• Thickness range: 1/2″ to 3/4″ (12mm to 18mm)
• Excellent for finished surfaces

Check out our Hardwood Plywood

Order now: Quote Request

CDX Plywood

• Budget-friendly option
• Exterior-grade glue
• Available in standard sizes
• Best when sealed properly
• Suitable for areas with less direct water exposure

Check out our CDX Plywood

Order now: Quote Request

Installation Tips

1. Always seal all edges and faces before installation
2. Use marine-grade sealant or epoxy coating
3. Maintain minimum 1/2″ (12mm) thickness for proper support
4. Install with proper spacing for expansion
5. Use stainless steel or galvanized fasteners

Our Recommendation

For optimal performance, we recommend Baltic Birch or Exterior Grade plywood for boat flooring. These options provide the best balance of durability, water resistance, and value. For budget-conscious projects, properly sealed CDX plywood can serve as an alternative.

Contact us for detailed specifications and current inventory availability.