DeWalt DCN45RN Cordless Roofing Nailer Review
Verdict: the DeWalt DCN45RN is the best cordless roofing nailer you can buy — and a genuinely liberating tool for repairs and small jobs — but it's heavier and far pricier than a pneumatic, so it's a second gun for most pros and a premium DIY primary.
| Type | Cordless, DeWalt 20V MAX |
| Nail range | 3/4″ to 1¾″ coil |
| Capacity | ~120 nails |
| Weight | ~7 lb with battery |
| Modes | Sequential + bump |
| Street price | ~$400 (bare) |
The freedom is the feature
No compressor. No hose. No gas cartridge. You grab the DCN45RN and go — up a ladder for a repair, out to a shed, across a roof to a spot the hose won't reach. For repairs, small sections, and punch-list work, that convenience is worth a lot, and it's why so many crews keep one in the truck alongside their pneumatic.
Performance
It drives standard coil roofing nails with consistent depth and enough power to set them flush in shingles and underlayment. Sequential mode gives you placement accuracy; bump mode gives you speed. Depth is tool-free. It's not quite as fast as an experienced roofer bump-firing a light pneumatic across a big field, but for the work it's designed for, it keeps up fine.
The weight and cost trade-off
Two honest downsides. First, weight: with a battery onboard it's noticeably heavier (~7 lb) than a ~5.5 lb pneumatic — you feel it overhead on a long day. Second, cost: around $400 bare, plus batteries, versus ~$230 for a Bostitch RN46 and a compressor you may already own. The math favors cordless when the convenience saves you real setup time, and favors pneumatic on big, compressor-friendly jobs.
Battery life
A charge covers typical repair and small-job sessions comfortably; for a full day of production, carry a spare 20V pack (larger-capacity batteries stretch runtime). Plan around one spare and you'll rarely stall.
Pros
- Total hose-free freedom
- Ideal for repairs and small jobs
- Consistent depth and power
- Runs on the huge DeWalt 20V platform
Cons
- Heavy with battery (~7 lb)
- ~$400+ before batteries
- Not the choice for all-day tear-offs
- Spare battery needed for big jobs
Who should buy the DeWalt DCN45RN?
Roofers who want a grab-and-go repair gun, DeWalt 20V owners, handymen, and DIYers who value convenience over the lowest price. If you're doing full roofs and already run air, keep your pneumatic as the primary and consider this a very nice second gun. Compare cordless options in our best cordless roofing nailer guide.
Frequently asked questions
Is the DeWalt DCN45RN worth it?
For repairs, small jobs, and anyone who hates hauling a compressor — yes, especially if you own DeWalt 20V batteries. For all-day production roofing, a pneumatic is lighter and cheaper.
How many nails per charge?
Plenty for repair and small-job sessions; carry a spare battery for full days. Runtime depends on battery size and nail length.
Does it use special nails?
No — standard 3/4″–1¾″ coil roofing nails.