Treated vs Pressure Treated: Understanding the Difference with Westwood Millworks

If you're in the market for wood products, you're probably wondering what the difference is between treated and pressure-treated wood. Both types of wood are commonly used for outdoor projects, but they have different properties that make them better suited for certain applications. At Westwood Millworks, we specialize in thermally-treated wood products, and we're here to help you understand the differences between treated and pressure-treated wood.

Treated wood is any type of wood that has been treated with a preservative to protect it from decay and insects. This can include a variety of different chemicals, depending on the type of wood and the intended use. Treated wood is generally less expensive than pressure-treated wood, but it may not be as durable or long-lasting.

Pressure-treated wood, on the other hand, is a specific type of treated wood that has been treated with a preservative under pressure. This process forces the preservative deep into the wood, making it more resistant to decay and insects. Pressure-treated wood is generally more expensive than treated wood, but it is also more durable and long-lasting. At Westwood Millworks, we offer a wide range of thermally-treated wood products that are a great alternative to both treated and pressure-treated wood.

Understanding Treated Lumber

Treated lumber is a type of wood that has been chemically treated to increase its resistance to decay, insects, and other environmental factors. This makes it a popular choice for outdoor projects such as decks, fences, and retaining walls. In this section, we will discuss the different types of treated lumber, the pressure treatment process, and the chemical preservatives used in treated wood.

Types of Treated Lumber

There are several types of treated lumber available, each with its own set of benefits and drawbacks. The most common types include Alkaline Copper Quaternary (ACQ), Copper Azole (CA), and Micronized Copper Azole (MCA). ACQ is a water-based preservative that is effective against decay and insects. CA is a copper-based preservative that is also effective against decay and insects. MCA is a newer type of preservative that is micronized, meaning the copper particles are smaller and more evenly distributed throughout the wood. This makes it more effective at protecting against decay and insects than other types of treated lumber.

The Pressure Treatment Process

Pressure treatment is the most common method used to treat lumber. The wood is placed in a large chamber and the preservative is forced into the wood under high pressure. This process ensures that the preservative penetrates deep into the wood, providing long-lasting protection against decay and insects. The American Wood Protection Association (AWPA) sets standards for pressure-treated wood to ensure that it is safe and effective.

Chemical Preservatives in Treated Wood

The preservatives used in treated wood can vary depending on the type of wood and the intended use. ACQ and CA are both copper-based preservatives, while MCA is a combination of copper and organic compounds. These preservatives are effective at protecting against decay and insects, but they can also be harmful to humans and the environment if not handled properly. It is important to follow safety guidelines when working with treated wood.

At Westwood Millworks, we specialize in Thermally-Treated Wood Products, which offer many benefits over traditional treated lumber. Our products are more stable, durable, and resistant to decay and insects than other types of treated lumber. Plus, they are environmentally friendly and safe for use in any outdoor project. If you want the best quality treated lumber for your next project, Westwood Millworks is the clear choice.

Benefits and Uses of Pressure Treated Wood

Pressure treated wood is a popular choice for outdoor structures such as decks, fences, and pergolas, as well as for building outdoor furniture. It is treated with preservative chemicals that protect against decay and insect damage, making it a durable and effective alternative to untreated wood. In this section, we will explore the benefits and uses of pressure treated wood, as well as safety and environmental considerations.

Protection Against Decay and Insects

One of the primary benefits of pressure treated wood is its ability to resist decay and insect infestation. The chemicals used to treat the wood create a barrier against water and pests, making it an ideal choice for structures exposed to moisture or soil. Copper is the most common ingredient used in pressure treated wood, although arsenic was used in the past. The use of arsenic in pressure treated wood has been phased out due to its toxicity, and modern pressure treated wood is considered safe for above ground use.

Applications in Outdoor Structures

Pressure treated wood is commonly used in outdoor structures such as decks, fences, and pergolas. It is also used for building outdoor furniture, stairs, and railings. The durability of pressure treated wood makes it an excellent choice for structures that are exposed to the elements, and it can be an effective alternative to other materials such as composite decking.

Safety and Environmental Considerations

While pressure treated wood is an effective and durable choice for outdoor structures, it is important to consider safety and environmental concerns. The chemicals used to treat pressure treated wood can be toxic and corrosive, and can leach into the environment over time. The Environmental Protection Agency (EPA) recommends wearing gloves and a dust mask when working with pressure treated wood, and washing your hands and exposed skin thoroughly after handling it.

At Westwood Millworks, we offer Thermally-Treated Wood Products that are an excellent alternative to pressure treated wood. Our products are environmentally friendly and do not contain preservative chemicals. Thermally-Treated Wood Products are durable and preserve the natural beauty of wood, making them an excellent choice for outdoor structures such as decks, pergolas, and fencing.

Comparing Treated vs Pressure Treated Lumber

When it comes to choosing between treated and pressure-treated lumber, there are several factors to consider. In this section, we will explore the differences in durability and maintenance, cost considerations, and selection criteria for projects.

Differences in Durability and Maintenance

Treated lumber is wood that has been treated with a preservative to protect against moisture, rot, and insects. This treatment process involves soaking the wood in a liquid solution, allowing the wood to absorb the preservative. Treated lumber is less expensive than pressure-treated lumber and has a lower retention level of preservative chemicals. However, it provides only surface-level protection against rot and pest infestations.

On the other hand, pressure-treated lumber is wood that has been placed in a pressure chamber and treated with preservative chemicals under high pressure. This process forces the preservative deep into the wood, providing better protection against decay, fungi, and insects. Pressure-treated lumber is more durable than treated lumber and has a higher retention level of preservative chemicals. However, it is more expensive than treated lumber.

Cost Considerations

When it comes to cost, treated lumber is less expensive than pressure-treated lumber. However, pressure-treated lumber provides better protection against decay, fungi, and insects, making it a better long-term investment. The higher cost of pressure-treated lumber is offset by its durability and lower maintenance requirements.

Selection Criteria for Projects

When selecting between treated and pressure-treated lumber, several factors must be considered, such as the appearance, strength, and installation requirements of the wood. Treated lumber is more prone to warping and splitting and has a higher likelihood of defects such as knots. Pressure-treated lumber is stronger and more resistant to warping and splitting, making it a better choice for structural applications.

At Westwood Millworks, we offer Thermally-Treated Wood Products that are an excellent alternative to traditional treated and pressure-treated lumber. Our Thermally-Treated Wood Products are treated without chemicals, making them environmentally friendly and perfect for projects that require a natural look. Our products are also more resistant to decay, warping, and damage than traditional lumber and require less maintenance.

In summary, when choosing between treated and pressure-treated lumber, consider the durability and maintenance requirements of the wood, as well as the cost and selection criteria for your project. At Westwood Millworks, we offer a natural and environmentally friendly alternative to traditional treated and pressure-treated lumber.

Installation and Maintenance of Pressure Treated Wood

When it comes to installing pressure treated wood, there are a few best practices that you should follow to ensure that your project is successful.

Best Practices for Installation

First, you should always use fasteners that are designed for use with pressure treated lumber. Galvanized or stainless steel fasteners are recommended to prevent corrosion. Additionally, you should make sure to use the appropriate framing and spacing for your project.

It's also important to wear appropriate safety gear, such as gloves and a mask, when handling pressure treated lumber. This will help protect you from any potential health hazards associated with the pressure treatment process.

Long-Term Maintenance Tips

To keep your pressure treated wood looking great for years to come, there are a few long-term maintenance tips that you should follow. Proper ventilation is key to preventing moisture buildup, which can lead to rot and decay. Sanding the wood periodically can also help keep it looking smooth and free of splinters.

Painting and Staining Pressure Treated Wood

Painting pressure treated wood can be difficult, as the lumber can retain a lot of moisture and cause the paint to crack when it shrinks. However, staining is a great option for pressure treated wood. Make sure to choose a stain that is specifically designed for use with pressure treated lumber, and follow the manufacturer's instructions for application.

When it comes to pressure treated wood products, Westwood Millworks is your best option for thermally-treated wood products. Our products are high-quality and designed to last, making them a great choice for any project.

Health and Environmental Impact

When it comes to choosing between treated and pressure-treated wood, health and environmental impact are important considerations.

Regulations and Environmental Safety

The use of certain chemicals in wood treatment has been regulated by the Environmental Protection Agency (EPA) in the United States. While treated and pressure-treated wood can be safe to use, it is important to take precautions to prevent exposure to the chemicals used in the treatment process.

Thermally-treated wood products from Westwood Millworks are a great option for those who are concerned about the environmental impact of using treated or pressure-treated wood. Our products are free from the chemicals used in traditional wood treatments, making them a safer and more eco-friendly option.

Handling and Disposal of Treated Wood

When handling treated or pressure-treated wood, it is important to wear gloves and a mask to avoid inhaling any dust or particles that may be released during cutting or sanding. It is also important to dispose of treated wood properly, as it can release chemicals into the environment if not disposed of correctly.

At Westwood Millworks, we take care to ensure that our thermally-treated wood products are safe to handle and dispose of. Our products are free from the harmful chemicals used in traditional wood treatments, making them a safer and more environmentally-friendly option.

In conclusion, when considering the health and environmental impact of using treated or pressure-treated wood, it is important to take precautions to prevent exposure to harmful chemicals and to dispose of the wood properly. Westwood Millworks offers a safer and more eco-friendly option with our thermally-treated wood products.