Learn the correct height and method for installing a new entry and black mailbox. Material: galvanized screws, 2×4 boards, water, mailbox message, mailbox, quick-setting concrete. If necessary, remove the cement base from the old entrance. Dig a new hole using a post-hole finder. According to the standard service zip codes, a mailbox should not sit any higher than 45 inches from street level.
Place the post black mailbox lowes in the hole. Level and attach two support beams in the center to keep the stand standing with your back straight. Place one on the side of the entrance, and then add another one to the back. This will ensure that the message does not move while pouring the concrete and remains level, while the concrete is drying. Pour the concrete straight into the post hole leaving 3 to 4 inches of area from the top of the post hole. In most cases, a 50-pound bag of quick drying concrete should be sufficient. Saturate the concrete.
For a 50 pound bag, you will need about one gallon of water. Be sure to leave the support beams in place for 4 to 6 hours or until the concrete dries. Most black metal mailbox kits will come with a wooden anchor to attach to the pole. After screwing the anchor to the pole, slide the mailbox over the anchor and secure with screws.