I'm a decent woodworker, and I'm looking to create a trellis that can hold up for at least 2-3 years. I know using cedar is a common choice, but I'm unsure if I should also apply a polyurethane sealant or something else. My previous cedar plant project has lasted about four years, but I want to ensure this new project can withstand the test of time in my garden. Any tips on how to achieve this durability would be greatly appreciated!
3 Answers
Honestly, no wood is going to rot out in two years unless it's really poor quality or improperly cared for. I've had cheap lumber in my garden for over four years without much issue. Cedar is definitely a solid option, and if you coat it in a good penetrating deck stain and keep it elevated from the ground, it should last for years to come!
To ensure your trellis lasts, make sure to seal it well, especially the parts that will be in contact with the ground. Regular resealing might be necessary to keep it protected from moisture. You can also elevate the wood on blocks or metal legs to prevent direct contact with soil. If you’re looking for longer-lasting materials, consider using pressure-treated wood, priming it, and applying a good coat of exterior paint for added protection.
Cedar is a great choice, but don't forget to consider other tough woods like Bois D'arc (Osage Orange) if you can find it. It's incredibly durable against weather and rot, just a bit harder to source. Just keep in mind that direct sunlight can really wear down exposed wood, so some extra care is needed there too. It sounds daunting, but with the right materials, your trellis can easily last beyond 2-3 years!
I appreciate the heads up! I’m just hoping to create a nice space without it falling apart. I’ll look for Bois D'arc and see what I can find.
Thanks for the advice! I didn't realize elevation would help. I'll definitely look into pressure-treated wood and proper sealing to extend its life.