Newly constructed homes tend to be made of cedar or redwood. If you are installing a new fence these are really great options for fighting against rot and decay, as they are resistant to both. You should also get pressure-treated wood for posts. Posts go into the ground, being pressure-treated will help them fight against insects and moisture. Pressure treated posts typically cost about $10 each. Pickets do not need to be pressure treated since they are above ground.
Within the first year of installation, wood may warp or split as it dries. In five to ten years, the fence could start to lean. Overall, your fence should last 10 to 15 years. To prevent rotting, apply a wood preservative to seal. Think of it like wax on your car.
Water-repellent preservatives as well as sealants, are sold at home-improvement stores. They will typically range from $11 to $19 per gallon. An exterior stain, which typically will be a sealant as well, are a great option for homeowners that want their fence to coordinate with the exterior of their home. A semi-transparent stain will cost around $17 to $18 per gallon.
Additionally, brushes and vines should always be kept off your fence. The less weight on your fence, the better. Keeping brushes and vines off your fence will also reduce your chances of rot due to moisture.
Source: HGTV
