Hardwood Floors April/May 2025

TECHNICAL PUBLICATION RESOURCES

T ips

For additional information, check out the NWFA's technical publications at NWFA.ORG/TECHNICAL- GUIDELINES/.

Abrasive Guide

ABRASIVE GUIDE

ABRASIVE GRADES (GRIT)

PAPER TYPE

12 16

Open Coat

20 24 30 36 40 50 60

Coarse

Medium

80 100 120 150 180 220 240 320

Fine

Extra Fine

* Start with the finest grit paper that will remove existing coatings and flatten the floor. * Do not skip more than one grit. * Do not skip grit sequence with fine and extra fine abrasive selections.

Source: NWFA Wood Flooring Sand & Finish Guidelines (revised 2016)

the magazine of the national wood flooring association

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