We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Is a Post Pounder?

By Sandi Johnson
Updated May 17, 2024
Our promise to you
About Mechanics is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At About Mechanics, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A post pounder, also known as a fence post driver or post knocker, is a tool used to drive fence posts into the ground. Typically, post pounders are comprised of a metal pipe with one closed end and one open end. For stability, most post tools of this nature have handles or grips on either side of the pipe. The open end of the post driver is slipped over the top of a fence post and repeatedly slammed against the post to drive it into the ground. Pounders are sold based on weight, post diameter, and power options including manual, pneumatic, or hydraulic.

Manual post pounder tools are usually weighted with concrete or solid steel at the closed end to provide additional driving force. Users hold the side handles or grips to lift the heavy pounder up, then slam it against the top of the fence post. Most manual post pounders are intended for use with metal t-posts, such as those used for cattle, horse, or electrical fencing in agricultural settings. Additional applications suitable for a manual post pounder include posts for dog kennels, street signs, and other small projects.

Large fencing projects call for a hydraulic or pneumatic post pounder. Power or hydraulic post drivers operate on gas, propane, or other fuel. Pneumatic post pounders use an air compressor to power the tool. Rather than manually lifting and slamming the post pounder, users of power-driven post knockers need only set the tool on top of the post and hold it straight. In the case of pneumatic tools, air pressure forces the post pounder down against the fence post, driving the steel post deeper and faster than a manual tool.

Hydraulic and commercial grade pneumatic post pounder tools are capable of driving almost any type of fence post. While manual and small pneumatic post drivers are generally limited to driving posts with diameters of 2 inches (5.08 cm) or less, larger tools can accommodate much larger posts. Additionally, commercial post drivers can also accommodate posts of different materials such as steel, wood, or composite. Internal pistons drive the posts into the ground, rather than lifting the entire tool.

Professional and commercial grade post driving tools have more wearable internal parts and require more maintenance. Lubricants such as piston oil and hydraulic fluid require regular monitoring and refill. Maintenance and replacement parts aside, the ability to deliver more than a thousand blows per minute and accommodate posts up to 4 inches (10.16 cm) in diameter compensates for the additional maintenance. Automatic stability control in the form of internal balancers provide hands-free operation.

About Mechanics is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.

Discussion Comments

About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.

About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.