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
- Set the depth so the nail head lands flush with the surface — not countersunk, which breaks the board's paintable surface and holding power.
- Test on a scrap piece and adjust pressure/depth until it's consistent.
- Nail into the framing at LP's specified spacing, keeping the recommended distance from ends and edges.
Frequently asked questions
Can you use a nail gun on LP SmartSide?
Yes — a coil siding nailer with corrosion-resistant nails, set to seat the head flush. It's LP's typical install method.
What nails for LP SmartSide?
Corrosion-resistant (hot-dipped galvanized or stainless), long enough to hit the framing, with a full round head. Follow LP's fastener spec for your product.
Is SmartSide easier to nail than Hardie?
Generally yes — it's engineered wood, so it's less brittle than fiber cement, but you still want flush, correctly spaced fasteners.