All fences offer some degree of privacy, but standard perimeter fences may not be designed with that in mind. Dedicated privacy fences, however, tend to enclose smaller areas and feature more high-end materials that truly emphasize seclusion and comfort. Additionally, privacy fences typically offer fewer gaps to peek in through than standard fences, though you can likely adjust that to suit your preferences. 

Yes, you can use a floor jack to remove fence posts. Attach a stem to the base of the fence post so you can position the floor jack underneath. The stem can be a scrap piece of wood attached with nails or a sturdy nail itself. Put the jack beneath the stem and push the lever to lift up on the fence post and remove it from the ground.

Who pays for a new fence between neighbors depends on its location relative to the property line. If you build the fence entirely on your property, you are solely responsible for the costs of installation, maintenance, and repair. If the fence is built directly on the property line, both neighbors are typically responsible for the costs. In this case, it is essential to consult with your neighbor beforehand to agree on a plan for payment. While you should always inform your neighbor of your plans in advance, you generally cannot force them to contribute financially unless there are specific local laws, such as in California, where both parties might be responsible for costs unless a different agreement exists. It's a good idea to get a property line survey to know the exact boundaries before building.

The depth of your post hole depends on your post length. If you decide on a two-rail fence, the posts are likely 6 feet long. You want your hole to be at least 1/3 of the post length. In this case, your post hole should be two feet deep.

If you opt for a three-rail fence, the posts will typically be 7 feet long, meaning your post hole should be 28 inches deep.