
Plastic lumber is a plastic form of lumber made from virgin or recycled plastic. It is mostly made of plastic and binders such as fiberglass or rebar. It is a sustainable construction material that is increasingly being used in place of wood. Plastic lumber is cost-effective, durable, and customizable. It is also resistant to cracking, splitting, rotting, and moisture damage. However, it is not as rigid as wood and may deform in extremely hot weather. Plastic lumber also has a lower modulus of elasticity and is subject to more creep than wood. While it is a more environmentally-friendly option than wood, the manufacturing process for plastic lumber is a net producer of CO2.
| Characteristics | Values |
|---|---|
| Environmental impact | Plastic lumber is made from recycled plastic, reducing waste sent to landfills. However, the manufacturing process produces CO2, and plastic lumber may contribute to greenhouse gas emissions. |
| Durability | Plastic lumber is durable, weather-resistant, and impervious to mould, moisture, and insects. It does not rot, splinter, crack, chip, or peel like wood, and does not swell or shrink due to moisture. |
| Maintenance | Plastic lumber requires little to no maintenance, saving time and money. It does not need to be painted, treated, or restored like wood. |
| Cost | Plastic lumber has a higher initial cost but is more cost-effective in the long term due to its longer lifespan and reduced maintenance needs. |
| Customisation | Plastic lumber can be customised to specific needs and projects. It can be easily processed, cut, drilled, and fixed, and is available in various colours and dimensions. |
| Strength | Plastic lumber is strong and compliant, making it suitable for structural projects. However, it may deform in extreme heat and is not as rigid as wood. |
| Fire safety | Plastic lumber may be preferable in fire-prone areas, but it can be flammable and may not meet fire safety standards. |
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What You'll Learn

Plastic lumber is more durable than wood
Additionally, plastic lumber is engineered for longevity and can be customized to meet specific needs. It is resistant to cracking, splitting, chipping, peeling, and rotting. Unlike wood, plastic lumber does not expand and contract significantly under hot, humid, or cold weather conditions, reducing the risk of warping or cracking. This stability under varying temperatures contributes to its durability.
The synthetic materials used in plastic lumber, such as fiberglass rebar or strands, enhance its strength and durability. These reinforcements make plastic lumber ideal for industrial uses and increase its resistance to external factors like moisture, wind, and UV rays. Plastic lumber's ability to withstand these environmental factors further contributes to its durability compared to wood.
Another advantage of plastic lumber is its flexibility, which gives it superior durability over wood. Flexible materials can absorb impacts and bend without breaking. Wood tends to be more brittle and is therefore more prone to breaking or splintering under stress. Plastic lumber's flexibility allows it to withstand strikes or impacts without succumbing to damage.
Lastly, plastic lumber is entirely waterproof, unlike wood, which is porous and tends to absorb water. This absorption can lead to warping, mould growth, and accelerated rot in wooden structures. Plastic lumber's waterproof nature eliminates the need for harsh chemical treatments and enhances its durability in outdoor applications, such as fencing and marine piling.
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Plastic lumber is more cost-effective in the long term
Another factor that makes plastic lumber more cost-effective is its customizability. It can be molded to meet almost any desired spatial condition, and it can be bent and fixed to form strong arching curves, which reduces the need for third-party cuts or shaping. This flexibility means that plastic lumber can be used for a wide variety of projects, from garden features to indoor flooring and outdoor decks.
Plastic lumber is also lightweight compared to wood, making it cheaper to transport and reducing the fuel costs and carbon footprint associated with delivery.
Finally, plastic lumber is often made from recycled plastic, which helps to reduce plastic waste and strain on landfills. This makes it a more environmentally friendly option than real wood, which requires trees to be cut down, contributing to the loss of carbon sinks and an increase in CO2 emissions. However, it is worth noting that the manufacturing processes for plastic lumber are currently net producers of CO2, so the environmental benefits may be less clear-cut in the long term.
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Plastic lumber is more eco-friendly
Plastic lumber is also recyclable, so it will never need to end up in a landfill. Its longevity also makes it a good long-term investment. Unlike wood, it does not need to be replaced, treated, painted, cleaned, or restored, saving time, energy, and money. It is also resistant to rotting, mould, moisture, and bugs, which can cause issues with wooden structures.
Plastic lumber is also lightweight, which makes it cheaper to transport than wood, reducing fuel usage and carbon footprint. It is also versatile and customizable, making it suitable for a wide range of projects, including outdoor, indoor, agricultural, and marine applications. It can be bent and fixed to form arching curves and can be moulded to meet almost any desired spatial condition, which is a major advantage over wood.
Another benefit of plastic lumber is that it does not splinter, which makes it safer for tradesmen and DIYers to work with and reduces the risk of injury. Plastic lumber is also impervious to staining from a variety of agents, and it does not swell or shrink due to moisture or sunlight exposure, which can cause timber to split and crack.
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Plastic lumber is easier to work with
Plastic lumber is a highly versatile material that can be worked on using conventional woodworking tools. It can be shaped, drilled, and cut with ease, making it a convenient option for various projects. Unlike wood, plastic lumber does not splinter, reducing the risk of injury during the installation process. This feature makes it safer for both professionals and DIY enthusiasts.
Plastic lumber is also known for its durability and resistance to cracking, splitting, and rotting. It is not susceptible to moisture damage, swelling, or shrinkage, which are common issues with real wood. This means that plastic lumber is less likely to be affected by weather conditions and environmental changes, maintaining its form over time. The material is also impervious to mould, moisture, and insects, further enhancing its longevity.
The low-maintenance nature of plastic lumber is another advantage. It does not require annual treatments, such as painting, oiling, staining, or restoring, saving time and effort. Plastic lumber is also fade-resistant due to its UV protection, ensuring that colours remain vibrant even with continuous exposure to sunlight. This feature is especially beneficial for outdoor applications, where traditional wood may require more frequent maintenance to maintain its appearance.
Additionally, plastic lumber offers customisation options to meet specific project requirements. It can be moulded to almost any desired spatial condition and bent to form strong arching curves, providing flexibility in design. The variety of dimensions available ensures that individuals can find the exact pieces needed for their projects without the need for third-party cuts or shaping, streamlining the construction process.
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Plastic lumber is safer to use
Plastic lumber is a safer alternative to wood. Unlike wood, plastic lumber does not splinter, which reduces the risk of injury for both professionals and DIYers. This makes it ideal for outdoor use, such as in gardens, where there is a risk of injury from splintered wood.
Plastic lumber is also resistant to cracking, splitting, and breaking, which can cause unsightly appearances and weaken timber structures. It is also waterproof and impervious to moisture, meaning it will not swell or shrink, which is a common problem with real wood. This makes it a more stable and safer option for construction projects.
Additionally, plastic lumber does not need to be treated, painted, or maintained like wood does. This means there is no need for potentially harmful chemicals or treatments, which could pose a health risk. Plastic lumber is also resistant to rot and mould, which can cause health issues if they develop in structures made from natural wood.
The durability and low-maintenance nature of plastic lumber make it a safer long-term option. It has a longer lifespan than wood, so it does not need to be replaced as often, reducing the risk of accidents during construction or renovation. This also makes it a more cost-effective choice, as it saves money on replacement and upkeep costs.
Overall, plastic lumber's resistance to splintering, cracking, and moisture, as well as its durability and low-maintenance qualities, make it a safer alternative to wood for a variety of applications.
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Frequently asked questions
Plastic lumber has a larger initial outlay than real wood. However, in the long term, it is far more cost-effective than real wood because it has a much longer lifespan.
Plastic lumber is extremely durable and is not affected by changing weather conditions and environmental changes. It does not swell, shrink, split, crack, chip, peel, or rot like real wood. It is also impervious to mold, moisture, and bugs.
Plastic lumber does not splinter like real wood, reducing the risk of injury when working with it.
Plastic lumber is made from recycled plastic, helping to reduce overall plastic waste and strain on landfills. It also does not require trees to be cut down, which play an important role in reducing CO2 emissions. However, the manufacturing processes for plastic lumber are net producers of CO2.
Plastic lumber is just as easy to process as real wood and can be cut, drilled, and fixed together with conventional woodworking tools. It also never needs to be treated to maintain its appearance, saving time and energy.











































