HardiePlank blind-nail detail — the fastener the next course hides

HardiePlank is blind-nailed: the fastener sits about 3/8″ from the top edge of each plank and the next course laps over it (headlap ≥1¼″), so the head is concealed with no exposed hole — face nailing through the plank face is permitted only where high-wind tables require it.

What this diagram shows

A section through two lap-siding courses on sheathing and a stud. A blind nail is driven about 3/8 inch from the top edge of the lower course into the stud, and the next course laps over that top edge with a headlap of at least 1¼ inches, concealing the nail head so there is no exposed hole. A contrasting red face nail is shown driven through the exposed face of the plank, labeled as permitted only in high-wind regions.

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    <img src="https://remodelcalculators.com/illustrations/hardieplank-blind-nail-detail.svg" alt="A section through two lap-siding courses on sheathing and a stud. A blind nail is driven about 3/8 inch from the top edge of the lower course into the stud, and the next course laps over that top edge with a headlap of at least 1¼ inches, concealing the nail head so there is no exposed hole. A contrasting red face nail is shown driven through the exposed face of the plank, labeled as permitted only in high-wind regions." width="800" height="500" style="width:100%;height:auto;border:0" loading="lazy">
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    Diagram: <a href="https://remodelcalculators.com/construction-diagrams/hardieplank-blind-nail-detail" target="_blank" rel="noopener">HardiePlank blind-nail detail — the fastener the next course hides</a> — courtesy of <a href="https://remodelcalculators.com" target="_blank" rel="noopener">RemodelCalculators.com</a>
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