Name: James Hardie Primed HZ10 Straight Fiber Cement Cedarmill Lap siding Primed 8.25-in x 144-in
Brand: James Hardie
SKU: 1002997778
Rating: 4.5 (456 reviews)

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Hardie® Plank Cedarmill® Fiber Cement Lap Siding has a woodgrain appearance making it ideal for exteriors where a traditional wood siding look is desired. ASTM E136 noncombustible cladding will not attract pests including termites and woodpeckers. HZ10® engineering means it is made to withstand high heat, humidity, moisture, hail, tropical storms and hurricane winds. Board is factory primed using a primer with a slight yellow hue. To finish, apply an acrylic, water-based exterior house paint to the primed board within 180 days of installation.

Use Hardie® Fiber Cement Siding to design or remodel a home's exterior
Hardie® Plank fiber cement siding is Engineered for Climate® allowing boards to hold up to harsh weather conditions where it is installed
Use a 2-1/2 in siding gun or siding nailer to attach to wood, steel or masonry substrates
Cedar look siding board has a woodlike grain finish for a natural wood look
5/16 in x 8.25 in x 12 ft Cedarmill® lap board installs horizontally and resists pests that can damage wood siding
Cut outdoors using a circular saw with a fiber cement saw blade and a vacuum dust collection system
Fiber cement siding up to 7/16 in may also be cut outdoors using an electric fiber cement cutting shear
Board resists damage from sun, heat, humidity and strong hurricane force winds to stay strong and intact
30-year limited non-prorated, transferable, warranty

General
Color/Finish Family	Yellow	Finish	Primed
Type	Lap siding	Package Quantity	1
Primed	Yes	Manufacturer Color/Finish	Primed
Texture	Cedarmill	Edge Profile	Straight
Sample Available	No	Series Name	Primed HZ10
Paintable	Yes

Dimensions
Actual Thickness (Inches)	0.312	Actual Length (Inches)	144
Actual Width (Inches)	8.25	Weight (lbs.)	20.65
Coverage Area (Sq. Feet)	8.25

Features
Sold As	Piece	Water Resistant	Yes
Stainable	No	Recommended Exposure (Inches)	7

Warranty
Warranty	30-year limited	Finish Warranty	None

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -

Miscellaneous
UNSPSC	30151800

Check out the Best Selling Fiber Cement Siding on Lowes.com

Review

4.5 out of 5

456 Reviews

92% Recommend this product

Ratings may include incentivized customer reviews.

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+ 26

What Customers Are Saying

The fiber cement siding is durable, weather-resistant, and holds paint well, requiring low maintenance. Many customers successfully used it to replace old, deteriorating siding. However, some found the long planks fragile and prone to breaking during transport. The high price was also noted as a potential downside by some.

Customer review summary generated by AI, including incentivized reviews.

456 Customer Reviews

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Cement board good but brittle product

Would Recommend

I bought this board to hide an awning. It did the job, but in handling this board, I broke it into 3 pieces accidentally because it is so brittle. To work with pieces as long as I purchased (16'), you really need 2 people to handle it for loading and moving it around.

cement boardSeptember 2, 2026
From Primed HZ10 Straight Fiber Cement Cedarmill Lap siding Primed 6.25-in x 144-in Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/4a1f3e3f-bf17-5873-9d79-149c4eca29ba

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great item

Would Recommend

grain finish pest resistance and weather-ressitance

davidSeptember 1, 2026
Verified Purchaser

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Good

Would Recommend

I was very disappointed that my original agreed delivery date was changed by Lowes just hours after I concluded the purchase. How ever, once I rescheduled the contractor all went well and delivery was on time and well executed.

AlohaAugust 29, 2026
Verified Purchaser

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Would Recommend

August 9, 2026
Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/8d0da76c-3977-5a8a-b435-15c5d32f5669

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/7a2d812d-ab0b-5f8f-bb39-7dacff588a76

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Lap siding	Panel siding	Panel siding	Lap siding	Lap siding	Lap siding	Lap siding	Lap siding	Lap siding
Primed	Primed	Primed	Primed	Primed	Painted	Painted	Primed	Primed
Smooth	Sierra 8	Cedarmill	Cedarmill	Roughsawn	Cedarmill	Cedarmill	Smooth	Cedarmill