You can use pressure-treated wood for a horizontal fence, but you’ll need to purchase a thicker and higher-quality variety to ensure it doesn’t sag or warp after you install it. Use #2 pine grade lumber and boards and thicker dimensional lumber, such as a two-by-six. You’ll also need to use stainless steel or hot-dipped galvanized fasteners, as the chemicals in the treated lumber will cause regular galvanized fasteners to rust. 

Retaining walls offer more value to a home if they also divert water, prevent erosion, or help support a foundation. The ROI of a retaining wall is between 100% and 200%.

Both fences and walls can increase your home’s value, but you’ll spend significantly more on a wall than you would on a fence. A stone wall costs approximately $5,000, a retaining wall costs $6,100, and a fence costs $3,200 on average to put prices in perspective. 

There is no best color for a vinyl fence, as it truly depends on a homeowner’s aesthetic preference. Classic white is the most popular and widely available of all the vinyl fence colors. However, contemporary black, warm browns, and natural grays are becoming more mainstream. One perk of darker-colored fences is that they are easier to “keep clean,” as in, dirt and debris don’t show up as easily as they would on lighter-colored fences. So if you don’t plan to give your fence regular washings, a dark color like black, gray, or brown would be the best choice.

The best under-gate dog barrier is one that extends to the ground. This effectively keeps dogs in and won't give them room to squeeze through. However, dogs that dig can still get under the barrier. Deter digging by paving the ground beneath the gate or filling it in with rocks or gravel. Be careful using wire to extend dog gates, as the sharp ends may cut or hurt your dog's paws.