If you've been finishing drywall with a trowel your whole career and you're skeptical about skimming blades — this one's for you. Here's a straight-shot comparison of the two tools from a pro contractor's perspective, with honest takes on where each one wins.
The 30-second answer
A drywall trowel is excellent for working seams, corners, and small repairs. A skimming blade is excellent for covering large flat surfaces fast with minimal lap lines. Most pros use both — the trowel for detail work, the blade for production. If you can only afford one, what you're doing this week decides which one.
What a drywall trowel actually does well
- Working seams and corners. The stiff, flat profile lets you feather tape over a butt joint with precision.
- Small patches. A 14" or 16" trowel is perfect for the 2-foot section where you cut out water damage.
- Veneer plaster. If you're doing actual plaster work (not joint compound), the trowel is still king.
- Curved or detailed work. Round corners, arches, and architectural details — the trowel wins every time.
Where the trowel falls short
The moment you're trying to put a uniform, blemish-free skim coat across a 12x14 wall, the trowel becomes a liability. You're working in 14-inch increments, which means dozens of pass marks. Every overlap is a potential lap line. Every flick of the wrist is a potential ridge. And under raking light or gloss paint, every one of those marks shows.
The trowel is also stiff. It won't ride the natural undulations of a wall, so you either gouge the high spots or leave the low spots un-skimmed.