What is the difference between regular plywood and film ...

Regular plywood and film faced plywood are both widely used materials in the construction world. Solid John has conducted over two years of research to find the most suitable plywood for humid environments. Surprisingly, less than 10% of trade professionals in Belgium truly understand the differences between these two types.

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Regular Plywood Explained

To begin with, regular plywood is the most prevalent among the two. The term "ply" refers to a layer of veneer, typically just a few millimeters thick. In essence, plywood comprises several thin layers of wood that are glued and pressed together, with the grain direction alternating for enhanced strength.

For centuries, plywood has been utilized in furniture making, interior design, and construction. A specific variant with a smooth surface was developed for use in concrete formwork, known as film faced plywood.

Key Differences Between the Two

Film faced plywood features a smooth top layer, in contrast to regular plywood, which has two decorative-grade veneers. This highlights the primary distinction: they share the same core but have different top layers.

Common wood varieties such as birch, poplar, and eucalyptus serve as materials for both regular and film faced plywood. Ultimately, the quality of a panel is determined by its core material. A weaker core cannot be compensated for by any top layer, applicable to both types.

Visual Similarities and Differences

Though regular and film faced plywood may appear quite similar, their surface finishes are notably different, leading to distinct applications and functionalities.

Author: L. D’hulst, Solid John

Making informed decisions when purchasing plywood can significantly impact the success of your projects. Below are answers to the most common questions buyers have, helping you better understand the product.

10 FREQUENTLY ASKED QUESTIONS WHEN BUYING PLYWOOD AND ANSWER

1. When was plywood invented? Who invented it?

Plywood was introduced to the United States in the late 19th century, and industrial production began shortly thereafter. In the 1940s, the first standard 4 ft x 8 ft (1.2 m x 2.4 m) plywood panels were released for use in general construction projects.

2. How is plywood made?

The production starts with the felling of trees. Once collected, the logs are processed into very thin planks. This labor-intensive process results in continuous sheets or pre-measured sheets, which simplify sorting. After drying, the sheets are layered and bonded using the appropriate adhesives, then graded based on diverse factors, including grain and density.

3. What is plywood used for?

Plywood is incredibly versatile, ideal for various applications based on reinforcement and decorative finishes. Due to its strength and affordability, it is commonly employed in both interior and exterior construction tasks, from formwork to internal paneling.

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4. Is plywood recyclable?

The manner in which plywood is recycled significantly depends on the type. Untreated and unpainted plywood can often be repurposed into compost or mulch, and the wood can be used in various applications, including animal bedding and soil reclamation. Solid plywood pieces can be reused by the end-user for constructing aesthetically pleasing furniture or decor.

5. What Happens if Plywood Gets Wet?

Exposure to moisture can lead to warping or degradation over time, particularly in untreated plywood. Water-resistant grades, such as film faced plywood, are specifically designed to endure high moisture levels, while standard or packing-grade plywood should always be kept dry.

6. Can plywood be bent?

Plywood can indeed be bent, but special types should be utilized, as most varieties may crumble or fracture under extreme bending. The optimal plywood for bending has compact grains to prevent separation during the bending process, with hardwood surfaces being particularly suitable, including those made from eucalyptus and similar materials.

7. Can plywood stain?

Yes, plywood can stain, though uneven absorption is common. Proper sanding, sealing, and the use of a pre-stain conditioner can promote a more uniform finish during the staining process.

8. Can plywood be sanded and polished?

Indeed, plywood can be sanded and polished. To achieve the best results, it is important to use the right tools. Starting with 80-grit sandpaper to level the surface before proceeding to finer sanding will provide a smooth and visually appealing finish.

9. How thick is the plywood?

Plywood is available in various thicknesses, ranging from 1/4 inch to over 1 inch, depending on its intended use.