The Advantages of Pressure Treated Sheds

Pressure treated sheds are an upgraded version of standard wooden garden storage. They can come as standard or customised, with a price tag that’s a little more than those untreated models. But are they worth the money? Here’s a quick run-through of the common questions so you know what you’re getting.

What Does Pressure Treatment Mean for Garden Sheds?

Pressure treatment is a process that forces preservatives deep into the timber. This extra effort during production defends the material from rot, damp, and insects. Unlike those left bare, pressure-treated sheds last longer, with less maintenance demands.

Most manufacturers include this as part of the design or as an optional add-on. Some, even offer up to a 15-year guarantee of protection from outdoor damage.

What Is Pressure Treatment?

Pressure treatment involves placing cut and dried wood in an airtight steel cylinder. A vacuum removes the air, adds chemical preservatives, and extracts excess liquid. In this low-pressure environment, the wood absorbs the preservative deep into the grain.

This leaves a greenish tinge finish, which is their trademark. If you see a model in this colour, chances are it’s pressure treated. This also means the wooden shed has already been impregnated before it reaches you. It can cost more and take longer to deliver, but you’re getting a built-to-last one.

Note: This can be done DIY, provided with the right materials and expertise.

What Chemicals Are Used in the Process?

The greenish tint comes from copper compounds like copper azole and DCOI. These act as fungicides and insecticides. With this additional protection, you won’t have to worry about pests causing havoc.

Alkaline Copper Quaternary (ACQ) preservatives are another compound used for anti-decay. It’s water-based, which helps improve the wood structure’s water resistance.

Are they harmful?

Generally, no. However, avoid direct contact with freshly treated wood. The chemicals may still be active, and direct contact can cause skin irritation.

This is especially important if you treated the wood yourself. If it’s store-bought, you may need to wait for three to six months for it to be fully dried.

How Long Does a Pressure Treated Shed Last?

With resistance to rot, moisture, and pests, the shed’s durability and longevity can extend up to 40 years. Even longer in some cases, provided it’s properly cared for.

Note: The anti-rot and pest infestation guarantee on pressure-treated sheds can vary. Be sure to look at the product design details when browsing online.

To What Extent Is Pressure Treated Wood Waterproof?

The treatment helps repel water but is not strong enough to make the wood fully resistant. It can withstand dribbling water on its surface or a quick rinse from a hose for maintenance. Yet exposure to high humidity and prolonged rain is a different matter.

For instance, contact with pooling water can trigger fungal decay, leading to mould. And don’t ever think about submerging decking or fencing boards. The pressure treatment could break if left exposed, let alone covered by it, for long periods.

Pressure treatment helps protect the shed from the effects of normal wet conditions. However, that doesn’t mean you can soak it through and let it stay wet.

How Low-Maintenance Are They?

Pressure-treated sheds are much easier to look after. You won’t need to apply wood preservatives, stains, or coatings as often—or at all, depending on the guarantee. This reduces the need for regular upkeep and cuts down on long-term maintenance costs.

What Makes Them So Expensive?

The initial cost covers the treatment process, which the manufacturer handles. Chemicals are injected under pressure or in a special vacuum—not to mention the effort to do so. That’s why you’ll often see an additional charge for this option (if it’s added as an upgrade) when checking out.

You might pay a bit more upfront, but you won’t be shelling out for extras later. Plus, you won’t need to do the pressure treatment yourself when your wooden shed eventually needs it.

Round-up

Paying extra for pressure treatment gives your shed better protection against the weather. It’s a practical upgrade that helps it last longer and needs less upkeep. This is worth considering if you’re looking for long-term value.

Up next on your reading list: Ultimate Yearly Shed Maintenance Checklist