I’m a complete novice with no woodworking experience so apologies if this is a dumb question. Would it be possible to use uncut wood to build a pergola like the one in the picture and still treat it for weathering? We live in Tennessee so unlike the eucalyptus pictured it would likely be pine, poplar, or oak from our property. Any and all advice is appreciated. Thank you!
Re: Sorry but I can't comment on your posts individually since I'm a new contributor.
Graphus, ideally I would like it to last at least 10 years. Anything less than that doesn't seem worth cutting so many trees for.
Gianluca, we get 50+ inches of rain per year and since this would be outdoors maybe the poly coating is my best option.
Caleb, I'm okay with bark being removed so long as they still keep their natural contour. With thin pieces I'm not sure how feasible this is. But I'm guessing if I can achieve that then I could get them pressure treated and maybe even double down with a poly coating.
Thank you for all the responses!
2nd Re: Graphus, thank you for taking the time to provide so much info. I absolutely do not want to resand and varnish this every few years, nor do I want a to add a yellow tinge to the wood if it can be avoided. For the oak, do you mean I could leave it completely untreated with bark still on and it would last (i.e. simply cut it down and use as is)? If we go with pine (it's harder to part with our hardwoods and we have plenty of pine we'd like to clear anyway), you mean we should simply remove the bark and then treat it as normal (sans poly)?
For the link to the photo source: https://www.elledecor.com/design-decorate/house-interiors/a34850863/mario-connio-uruguay-house/ Please let me know if I need to provide any more information for the picture.