Brad Nails vs Finish Nails?
By The DIYPicks Team · Updated July 2026
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Grip-Rite 2 in. 18-Gauge Electrogalvanized Brad Nails (GRF182M)
The default interior brad nail: an inexpensive 18-gauge electrogalvanized strip that fits nearly any brad nailer and leaves a fillable pinhole for trim, molding and cabinet face work.
| Gauge | 18-gauge |
|---|---|
| Length range | 5/8 - 2 in (line); 2 in this SKU |
| Collation | Straight strip |
| Coating | Electrogalvanized |
| Best for | Trim & molding |
DeWalt 2-1/2 in. 16-Gauge Straight Finish Nails (DCS16250)
A high-value 16-gauge straight finish nail for the bread-and-butter interior jobs, baseboard, door and window casing, and crown, where you need more grip than a brad but a still-fillable hole.
| Gauge | 16-gauge |
|---|---|
| Length range | 1 - 2-1/2 in (line); 2-1/2 in this SKU |
| Collation | Straight strip (plastic collated) |
| Coating | Bright / galvanized |
| Best for | Baseboard & casing |
Our verdict
Use an 18-gauge brad nail for light, delicate trim, thin molding, shoe base, cabinet face parts, where the tiny hole barely needs filler. Step up to a 16-gauge finish nail for anything that has to stay put: baseboard, door and window casing, and crown. The finish nail's thicker shank gives real holding power at the cost of a slightly bigger hole and a bulkier gun. Many trim carpenters own both: brads for detail work, a 16-gauge finish gun for the structural trim. If you can only buy one, the 16-gauge is the more versatile workhorse.