| Materials | Price inc VAT | Lead Time |
|---|---|---|
| Oak | 4170 £ | 8 Weeks |
| Douglas fir | 4020 £ | 8 Weeks |
| Treated spruce | 3920 £ | 8 Weeks |
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![Durable Oak Pergola with Chunky Oak Beams: Durable and Elegant Garden Addition, Dimensions: [Height] x [Width] x [Length], [Number of Bays]](https://timbersolution.co.uk/wp-content/uploads/2023/09/wrde-strong-1024x767.png)
Oak is one of the most popular timbers for outdoor furniture, pergolas, and garden structures — loved for its strength, timeless beauty, and natural durability. But many people wonder: does oak rot easily, and can you safely leave it untreated?
No, oak does not rot easily — but like all wood, it can deteriorate if exposed to the wrong conditions. Its natural tannins act as a built-in preservative, protecting it from decay and insects. However, the level of resistance depends on the type of oak, moisture exposure, and whether it’s in contact with the ground.
Factors That Influence Oak Rot
You can easily extend oak’s life with a few simple care steps:
Yes — you can leave oak untreated if you prefer a natural, weathered look. Over time, untreated oak develops a beautiful silver-grey patina, especially outdoors. There’s no requirement to treat oak, and its natural oils and tannins offer moderate protection against decay. However, if you want to preserve its original color and enhance its weather resistance, applying a protective treatment is highly recommended. For outdoor use, we suggest coating oak with Osmo Oil 4001 WR Base Coat — a clear, breathable treatment that guards against damp, mildew, rot, blue stain, and wood-boring insects. If your oak develops tannin stains, you can easily spot-clean them using Oxalic Acid Crystals diluted in water to restore the timber’s appearance.
Oak is a naturally durable hardwood that rarely rots when properly cared for. Whether you choose to leave it untreated for a rustic look or apply a protective oil for long-term preservation, oak remains one of the most beautiful and reliable timbers for both indoor and outdoor use. With a little care — and the right finish — your oak furniture or pergola will last for generations.
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| Stronghold Pergola Supplied – Included | ||
| Uprights | mm | 145 x 145 |
| Top Plates | mm | 145 x From 145 |
| Joists | mm | 60 x 140 |
| End Beam Cut | Type | A1 – 20 |
| Brace B1 | mm | 50 x 150 |
| Kiln Dried Oak Dowels | mm | Diameter 16 |
| Stronghold Pergola Extras | ||
| Brace B2 – 9 | Extra | |
| Latice 30 x 50 mm | Extra | |
| Staddle Stones – Flat or Taper | Extra | |
| Concealed Post Base – CPT66Z | Extra | |
| Custom Wall Systems D1-14 | Extra | |
| Chamfers for Beams Larger than 165 mm | Free | |
| Fixings ( screws, nails, etc ) | Extra | |
| Delivery | Extra | |
| Tailor The Frame To Be Up To 225 mm Thick | ||
Please, provide us with information on what is required for pricing and design.
We will prepare a price offer and get back to you with an offer and 3D renders for free of charge.
If you have your own sketches, architectural drawings or photos from the internet, please attach below, it will help us with design and pricing.
