Building a privacy pergola not only enhances your outdoor space but also provides a crucial shield against prying neighbors. In my experience, using the right finishing products is key to ensuring the pergola stays beautiful and durable over time. I chose RMP Finishes' Outdoor Defense Oil, a pure tung oil blend with zinc that acts like a mineral sunscreen for wood. This waterproof oil is fantastic because it penetrates deeply rather than just coating the surface, preventing peeling or chipping seen with other paints. One trick I learned is to apply multiple thin layers and wipe off any excess oil to avoid pooling, which can actually harm the wood's absorption ability. The finish dries quickly, so you can plan to apply a second coat soon after the first. The oil’s ingredients also protect the wood from rain and UV damage, ensuring that the pergola maintains its strength and color for years. Cost-wise, building under $400 was possible by sourcing affordable lumber and doing all the labor myself. Taking a couple of days to carefully assemble and finish the pergola meant a lot of satisfaction seeing it transform from exposed backyard into a secluded retreat. Not only does it provide privacy, but it also brings a cozy atmosphere that invites relaxation. For anyone planning a similar project, I recommend thorough preparation—scraping off any prior finishes and sanding smooth before applying oil. Also, keep in mind local weather conditions and choose products designed for outdoor defense. This combination of smart materials and techniques can save you from costly maintenance down the line and help you enjoy your backyard uninterrupted by neighborly views.