How to Build Rustic Outdoor Furniture With Pressure-Treated Lumber
If you are considering building outdoor furniture, you may want to choose pressure-treated lumber for your project. These materials are great for rustic, weather-resistant outdoor furniture, but they can contain sawdust and other debris. You should thoroughly clean pressure-treated lumber before installation. Pressure-treated wood is also resistant to water and weather and has been infused with a wood preservative. Moreover, these woods are stronger than other types of wood, such as pine.
Choosing the right wood for outdoor furniture
When choosing wood for rustic outdoor furniture, remember that this type of furniture is not made of metal, so it will need a protective coating. Luckily, there are some wood-finishing solutions on the market. One of them is Owatrol H4 Wood. This colorless waterproof treatment will allow your outdoor wood to age slowly and naturally, turning silvery gray over time. This coating will prevent moisture and insect damage and needs to be applied at least every couple of years.
Types of pressure-treated lumber
Purchasing the right pressure-treated lumber for rustic outdoor furniture requires some basic knowledge of the types available. The main difference between #1 and #2 lumber is the number of knots or holes, as well as size and spacing. Additionally, there is a big difference between these two grades when it comes to price. If you’re not sure which to buy, a quick trip to your local lumberyard should help you decide.
Chemicals used in pressure-treated lumber
When choosing a pressure-treated wood for your outdoor furnishings, look for the stamp that says “Pressure-treated.” Check the end tag, too, to find out what kind of preservatives are used, and the preservation company’s rating. Be sure to steer clear of CCA wood, as this has been known to cause serious side effects, including frequent seizures and long periods of disorientation. If possible, avoid pressure-treated lumber that is used in marine environments, as it contains a form of arsenic, which is harmful to aquatic life.
The lifespan of pressure-treated lumber
If you are planning to build outdoor furniture for your patio, deck, or garden, you might wonder how long pressure-treated lumber will last. Pressure-treated lumber has twice the protection and chemical retention of untreated lumber. You should only use pressure-treated lumber if you plan to build your furniture below six inches off the ground or in areas where ventilation is insufficient or maintenance is difficult. There are two grades of pressure-treated lumber: premium and #2. Premium grades are generally more expensive but offer better durability and better aesthetics. The second grade is perfect for projects with little concern for appearance.
Alternatives to pressure-treated lumber
If you’re looking for a way to create the look of rustic outdoor furniture without the use of pressure-treated lumber, consider a non-arsenic alternative. CCA wood is highly toxic, and it has been banned for residential use since 2003. It can cause extreme fatigue, blackouts, seizures, and long periods of disorientation. It can also be harmful to marine life, and it is therefore banned in some locations. There are several alternatives to CCA-treated wood, including metal and natural decay-resistant wood.