Gypsum Board vs Plywood: Differences & Cost

Plyboard (plywood) is stronger, handles moisture better and takes more finishes, so it suits walls that carry shelves or cabinets, kitchens, bathrooms and furniture. Gypsum board, also called plasterboard or drywall, is lighter, cheaper, quicker to install and fire-resistant, which makes it the usual choice for interior walls, ceilings and partitions.

The two materials serve different purposes, and knowing when to use each can make a real difference to the quality and cost of a construction or interior project.

What Is Plyboard?

Plyboard, also known as plywood, is made by gluing together multiple thin layers of wood veneer, with the grain of each layer running in a different direction. This cross-graining increases strength and reduces shrinkage, creating a strong, durable and versatile material that is widely used in construction, furniture making and cabinetry. Plyboard comes in different grades, each suited to specific applications, from structural work to interior decoration.

What Is Gypsum Board?

Gypsum board, commonly known as drywall or plasterboard, is a panel with a core of calcium sulphate dihydrate (gypsum) pressed between thick sheets of paper. It is mainly used for walls and ceilings in homes and commercial buildings because it is cost-effective and easy to install, and its fire resistance makes it a safer choice for areas prone to high temperatures. Read more about gypsum sheets.

Plyboard vs Gypsum Board: Which Is Better For Walls?

When choosing between plyboard and gypsum board for walls, consider the nature of the space and the durability it needs. Plyboard is robust and can handle heavy loads, which makes it ideal for rooms where you may hang shelves or cabinets. Gypsum board gives a smoother finish and is better suited to spaces where appearance and fire resistance are the priorities.

1. Durability And Strength

Plyboard is known for its high strength and durability. It is less prone to cracking or breaking under pressure, so it suits structures that need a strong framework, as well as high-traffic areas and places subject to wear and tear. It does need proper treatment, though: untreated plyboard can warp or crack, especially in extreme weather. Gypsum board is easier to install but more brittle, and it can crack under impact.

2. Moisture Resistance

Moisture can seriously affect building materials, especially in kitchens and bathrooms. Plyboard, particularly the waterproof variety, resists moisture better than gypsum board, which tends to warp or crumble when exposed to water. For damp areas, plyboard is generally the safer choice.

3. Fire Resistance

Gypsum board has inherent fire resistance because of the water content in its gypsum core. This makes it a preferred choice for building code compliance in fire-rated assemblies. Plyboard, on the other hand, is flammable and should be used with caution where fire safety is a concern.

4. Cost

Budget often plays a big role in material selection. Plyboard is typically more expensive than gypsum board, and its cost varies with grade and thickness, while gypsum board remains relatively affordable across its types. For large projects on a tight budget, gypsum board may be the more economical option.

5. Installation And Maintenance

Gypsum board is easier and quicker to install. It is lightweight, easy to cut and handle, and is fixed with screws or adhesive, which cuts labour and time. The joints then need taping and mudding to create a smooth surface for painting. However, gypsum board is more prone to damage and may need frequent repairs.

Plyboard is more challenging to install because of its weight and the need for careful measurement and precise cutting. It is nailed or screwed into place for a secure fixing, and visible boards may need sanding and sealing for a smooth finish. In return, it offers long-term durability and lower maintenance costs.

6. Aesthetic Flexibility

Plyboard offers more flexibility in finishes. Its natural wood surface adds warmth to a space, and it can be painted (a primer gives the best finish), laminated or veneered, giving numerous design possibilities. Gypsum board is generally limited to paint and wallpaper, but it gives a smooth, modern finish that is ideal for minimalist designs.

7. Environmental Impact

Sustainability is becoming a crucial consideration in construction. Plyboard sourced from certified forests is an eco-friendly option, and it can be recycled or repurposed after use. However, the adhesives used in plyboard can emit volatile organic compounds (VOCs). Gypsum board produces less waste during manufacturing and has a lower environmental impact during production; it can be recycled, but only through specific processes, and it is not biodegradable.

8. Applications In Residential Spaces

In homes, the choice depends on the room and its requirements. Plyboard is ideal for kitchens and bathrooms because of its moisture resistance and strength, and plywood wall panelling adds warmth and character to feature walls. Gypsum board is better for living rooms and bedrooms, where appearance and fire resistance are key.

9. Applications In Commercial Spaces

In commercial spaces, gypsum board is often preferred for its cost-effectiveness and fire resistance, and it is used extensively in office buildings, hotels and hospitals. Plyboard, with its robustness, is ideal for areas that need extra strength, such as retail stores or industrial settings.

Plyboard vs Gypsum Board For Ceilings

For ceilings, gypsum board is usually the go-to material because it is lightweight and has a smooth finish. It creates a seamless look that is hard to achieve with plyboard. Plyboard is heavier and more challenging to install, but it can be used for decorative ceilings or where additional support is needed.

Plyboard vs Gypsum Board For Partition Walls

Partition walls need to be sturdy yet cost-effective. Gypsum board partitions are popular in offices, commercial buildings and homes because they are lightweight, easy to install and allow flexible layouts. Plyboard partitions cost more but are more durable.

Which Is More Versatile?

Plyboard is undeniably more versatile because of its structural properties and finish options. It can be used for everything from flooring, roofing and sheathing to furniture and cabinets. Gypsum board is less versatile, but it excels in specific areas such as fire-rated assemblies and quick wall installations.

Choosing The Right Material For Your Project

Choosing between plyboard and gypsum board means weighing your project's needs: location, budget and durability. For high-impact areas or where moisture is a concern, plyboard is often the better choice. For cost-effective, fire-resistant wall finishes, gypsum board is ideal.

1. Maintenance And Longevity

Plyboard, if maintained properly, can last for decades without significant wear, though it may need occasional re-polishing or re-laminating. Gypsum board needs less maintenance at first but is more prone to dents, holes and water damage, which can shorten its lifespan.

2. Innovative Uses Of Plyboard And Gypsum Board

Architects and designers keep finding new ways to use both materials. Plyboard is used for intricate woodwork and custom furniture, while gypsum board is used in modern wall designs with embedded lighting and textures.

3. Combining Plyboard And Gypsum Board

In some projects the best solution uses both materials. For example, using plyboard for structural elements and gypsum board for decorative finishes combines the strengths of both, creating a balanced and functional space.

Future Trends In Building Materials

As sustainable building becomes more important, innovations in both plyboard and gypsum board production are expected. Plyboard made with eco-friendly adhesives and gypsum board with improved recyclability are on the horizon, offering more sustainable choices for builders.

Conclusion

The choice between plyboard and gypsum board ultimately depends on the specific requirements of your project. Plyboard offers strength and versatility, ideal for high-impact or moisture-prone areas. Gypsum board provides a smooth finish and excellent fire resistance at a lower cost. Understanding the strengths of each will help you make an informed decision and ensure the longevity and quality of your construction or interior work. For strong, moisture-resistant boards, browse our plywood range.