The Best Nailer for LP SmartSide Siding

The best nailer for LP SmartSide is a coil siding nailer (Bostitch N66C, DeWalt DW66C-1) loaded with corrosion-resistant nails long enough to penetrate the framing — driven flush, not overdriven. LP SmartSide is engineered wood, so it's more forgiving than fiber cement, but flush nailing still matters.

Why a coil siding nailer

LP SmartSide (treated engineered-wood strand siding) installs like wood lap siding, and a coil siding nailer gives you the nail length, capacity, and depth control to move down a wall cleanly. Its 1¼″–2½″ nail range fits SmartSide lap and panel products.

The nails LP calls for

• Corrosion-resistant: hot-dipped galvanized or stainless — follow LP's current fastener guidance for the exact nail type and minimum dimensions.
• Length: long enough to penetrate the studs/framing (commonly around 1½″+ into solid framing) — check LP's install guide for your product and sheathing.
• Head: a full round head to hold the board; avoid undersized heads.

How to fasten it flush

1. Set the depth so the nail head lands flush with the surface — not countersunk, which breaks the board's paintable surface and holding power.
2. Test on a scrap piece and adjust pressure/depth until it's consistent.
3. Nail into the framing at LP's specified spacing, keeping the recommended distance from ends and edges.

Frequently asked questions

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