HardiePlank Smooth Lap Siding, 12' x 8-1/4", HZ10

Durable fiber cement lap siding engineered for HardieZone 10 climates. The smooth, primed Grey Slate board delivers long-lasting curb appeal with superior resistance to moisture, fire, and pests.

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Key Features:

• Climate Engineered: HardieZone 10 formulation resists moisture, cracking, shrinking, and swelling
• Low Maintenance Durability: Fiber cement construction resists rot, pests, and fire
• Smooth Lap Profile: Clean, timeless look ready for paint or ColorPlus finishes
• Extended Warranty: Backed by a 30-year limited, non-prorated warranty
• Versatile Installation: Designed for horizontal or vertical applications with consistent coverage

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Material	Fiber cement
Profile	Smooth lap siding
Color Family	Gray
Color/Finish	Grey Slate (primed)
Finish Type	Finished/Primed
Product Length (in.)	144
Product Width (in.)	8.25
Product Thickness (in.)	0.31
Coverage Area (sq. ft.)	8.25
Vertical/Horizontal	Vertical / Horizontal
Siding Features	Engineered for climate; resists moisture, swelling, cracking
Manufacturer Warranty	30-Year Limited, non-prorated
Product Weight (lb.)	19.8

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Frequently Asked Questions (FAQ):

Q: Is this board pre-primed or prefinished?
A: It is factory primed and can be painted; ColorPlus prefinished options are also available separately.

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Q: What are the exact dimensions?
A: Length 144 in, width 8.25 in, thickness 0.31 in.

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Q: How much area does one board cover?
A: Approximately 8.25 sq. ft. per board, depending on overlap.

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Q: Can it be installed horizontally and vertically?
A: Yes, it’s suitable for both orientations following James Hardie installation guidelines.

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Q: What climate is HZ10 designed for?
A: HZ10 products are engineered for warm, humid, and coastal climates with high sun and rainfall exposure.

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A Sleek, Modern Skin for Timeless Exteriors

The smooth lap profile brings a tailored, architectural finesse to any façade, letting shadows play elegantly across clean lines. Its Grey Slate tone offers a refined, neutral canvas that pairs beautifully with crisp white trim or dramatic black accents. Use it to unify a mix of porches and gables for a cohesive, polished statement. This is the go-to siding for luxurious curb appeal that endures.

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Upgrade your exterior with HardiePlank Smooth HZ10 for lasting beauty and climate-tough performance—order today.

Warranty