Which is better for sanding a deck or large tabletop?

The 6 in. DCW230B. Its larger pad covers more area per pass and the lower 6,000 OPM setting helps on finish coats. The 5 in. DCW210 still works, it just takes longer.

Is the 6 in. sander worth twice the price?

Only if you sand large flat surfaces often. At $198.40 at eBay versus $99.00 at Home Depot as of November 3, 2026, the 5 in. model is the better value for general projects.

Do both use the same battery?

Yes. Both run on DeWalt 20V MAX batteries, and both are sold tool only, so you need a battery and charger you already own.

Which one removes material faster?

The 5 in. DCW210 spins faster at up to 12,000 OPM. The 6 in. DCW230B has a bigger pad but tops out at 10,000 OPM, so it trades speed for coverage.

Which has better dust collection?

The DCW230B ships with a dust collector. The DCW210 has a locking dust bag and can connect to DeWalt DWV010 or DWV012 collectors, which are sold separately.

Both use brushless 20V MAX XR motors built for the same platform, so life depends more on load and battery care than on the model. Neither has a published runtime advantage.

DeWalt 20V MAX XR Brushless 5 in. Random Orbital Sander (DCW210) vs DeWALT 20V MAX XR 6-in. Random Orbital Sander, Tool Only (DCW230B)

Buy the 5 in. DCW210 for most sanding work. It costs $99.00 at Home Depot as of November 3, 2026, versus $198.40 at eBay for the 6 in. DCW230B. The 6 in. model covers more surface per pass and runs at lower OPM, but it costs about twice as much and is tool only.

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