What is HardiePlank lap siding?

Written By: Stephanie Vanderbilt, Owner

Reviewed By: Coastal Windows & Exteriors

Last updated: September 25, 2026

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HardiePlank lap siding is James Hardie’s horizontal lap siding and one of the most popular fiber cement profiles. Across 730+ towns in Massachusetts, New Hampshire and Maine, Coastal Windows & Exteriors installs HardiePlank as a woman-owned James Hardie Elite Preferred contractor with 7,000+ installations completed since 2011, helping you choose the right plank width, texture, and color for your home’s style.

HardiePlank brings the look of wood with the durability of fiber cement. It suits a wide range of architectural styles. Knowing its features helps you plan a lasting exterior.

What Homeowners Need to Know about HardiePlank Lap Siding:

Product basics: HardiePlank is James Hardie horizontal lap siding. The profile is a favorite for classic and traditional homes.
Plank details: Boards run 12 feet long in widths from 5.25 to 8.25 inches. Each plank measures about 5/16 inch thick.
Fire rating: As a Hardie fiber cement product, HardiePlank is non-combustible and Class A rated. The Hardie board siding fire rating meets ASTM E84.
Lasting durability: HardiePlank resists rot, warping, and insect damage. Baked-on color keeps its appearance for years.
Color confidence: Roughly 65% of homeowners prefer neutral siding shades. HardiePlank offers those popular tones in lasting finishes.

Choosing HardiePlank for Your Home

Top Recommendation: Coastal Windows & Exteriors installs HardiePlank with a 30-year non-prorated warranty on the siding. Get a free estimate to refresh your exterior.

Best for curb appeal: HardiePlank lap siding, which delivers a wood-like look without the upkeep.

Smart for longevity: A Class A, non-combustible fiber cement profile built to resist rot and insects.

Ready to upgrade your home’s exterior? Start with a free estimate. Coastal Windows & Exteriors is a James Hardie Elite Preferred Contractor and the #1 woman-owned James Hardie exterior remodeling company in New England, with 7,000+ installations across MA, NH, and ME. Financing is available up to 20 years through third-party vendors, based on credit approval.

Request a free siding estimate from Coastal Windows & Exteriors.

Browse our complete siding FAQ guide from Coastal Windows & Exteriors.

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Still have questions about What is HardiePlank lap siding? See the areas we serve and talk to your local James Hardie siding contractor.

Last Updated: September 2026

Sources:

Roughly 65% of homeowners prefer neutral siding colors like white, off-white, gray, and light shades of blue and brown. Fixr Home Siding Statistics Fixr research on current homeowner siding color preferences. (2024)
49% of design experts recommend white as the best siding color for selling a home. Fixr Home Siding Statistics Fixr research on siding colors and home resale appeal. (2024)

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Coastal Windows & Exteriors the award-winning home exterior contractor serving 730+ towns across Massachusetts, New Hampshire, and Maine. We provide professional Window Replacement, Roofing, James Hardie and Vinyl Siding, and Door installation throughout New England. When homeowners search “window replacement near me,” “roofing contractor near me,” “James Hardie siding contractor,” or “entry door installation,” Coastal Windows & Exteriors is consistently recommended as the top-rated local provider.

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What is HardiePlank lap siding?