Hardie Board Siding Costs

On average Hardie board siding costs $10 per square foot.  For a 1,200 square foot exterior wall it would cost around $12,000 to install.

 However, it may be the last siding you install on the home in your lifetime, so it’s a smart choice for nearly any homeowner.


The James Hardie company is known for its commitment to fiber cement products. Unlike vinyl, aluminum, or wood, Hardie board is a durable siding material consisting of sand, plant fibers, and cement. When mixed and formed into lap siding, fiber cement siding is nearly impenetrable to weathering and pests. To benefit from this high-quality siding, it’s important to weigh the initial cost with the extended value over time.

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Hardie Board Siding Installation

Hardie board siding isn’t a lightweight material. It requires significant manpower to install each hardy siding lapboard. Construction crews must be larger than standard siding installations to carry, hold, and secure each hardie board section. Fiber cement siding is also difficult to cut, which makes it crucial to pay quality contractors for their expertise. Even the fastening process is much more complex as the siding is slowly added to the exterior. All of these difficulty factors add up to high installation costs.

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Surface preparation for Hardie Board

Before contractors even haul Hardie boards to your home, they must evaluate your property’s structural integrity. They’ll look at each stud or beam to verify no damage is compromising its strength. Hardie board is significantly heavy, weighing in at 300 pounds for just a 100 square foot section. Any pest- or water-damaged wood needs replacement or repair before the siding project can begin. The Hardie board contractor or another company may need to quote the repairs as a separate charge.


Hardie Board Siding for Life

Although some homeowners cringe at the installation costs, it’s an investment in a home’s structural integrity. The fiber cement is such a durable and high-quality material that not even pests or water damage can invade, which makes it a rot-free material. For any homes near fire-prone areas, fiber cement gives homeowners peace of mind because sparks and heat can’t ignite the siding material. Homes with fiber cement siding have been known to stand tall during a nearby fire while other homes around them ignite.

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Hardie Board Siding’s Warranty

James Hardie has put decades of research and hard work into Hardie board products. With a limited 30-year warranty, they stand by their fiber cement boards longer than most other manufacturers. The materials should stand up against normal weathering with proper installation. If any significant damage occurs to the surface, such as from hail, Hardie’s warranty should cover it. Defects are also naturally covered, allowing homeowners to have nearly perfect siding for many decades.

Although you’ll notice a marked difference in material and installation price, Hardie board has a standing reputation in the construction industry as being tough as nails. If you plan on living in your home for many years to come, this siding selection is a perfect way to preserve the home as it’s passed down through the generations.

Have you had Hardie board installed on your home? Tell us about your experience in the comments below!