Professional Sandpaper Guide

Floor Sanding

Guides for hardwood floor sanding — from the right grit sequence on oak vs maple to drum sander selection and edger technique. Written for contractors, not homeowners.

80 Grit vs 100 Grit Sandpaper for Floors

80 vs 100 grit final pass: 100 for water-based or stain, 80 for oil-based clear. Plus the water-wipe test that catches scratches before you finish.

Best Drum Sander Sheets 8×19.5: VA vs Norton vs 3M

Best 8×19.5 drum sheets compared: Virginia Abrasives, Norton, 3M ranked by stage, coat type, sheet life, and honest cross-brand picks.

Best Sanding Sheets for Clarke DU-8 Drum Sander

Clarke DU-8 sandpaper: 8×19.5 inch sheets. Loading, troubleshooting, rental inspection checklist, and DU-8-specific failure modes.

Best Sandpaper for Hardwood Floor Refinishing

Best sandpaper for hardwood floor refinishing: Virginia Abrasives vs Norton vs 3M, segmented by DIY weekender, light pro, and stain work.

Best Sandpaper for Removing Paint from Wood Floors

Removing paint from wood floors: 24-36 grit start, open-coat sheets, lead testing for pre-1978 houses, RRP rule, fire risk, stripper safety.

Clarke EZ-8 Sandpaper Size Guide: Both Versions, Specs

Clarke EZ-8 sandpaper: older clamp-bar uses 8×19.5 sheets, newer expandable drum uses 8×19 belts. Identify your version, load, troubleshoot.

Clarke Super 7R Edger: Specs, Disc Sizes, Variable Speed

Clarke Super 7R edger guide: 7-inch discs, 7/8 vs 5/16 center hole, variable speed by grit, rental inspection, PSA vs hook-and-loop.

Floor Sanding Edger Discs 7-Inch: VA vs Norton vs 3M

Best 7-inch edger discs compared: VA, Norton, 3M by stage. PSA vs hook-and-loop. Mode-segmented picks for DIY and light pros.

How to Sand Hardwood Floors with a Rental Sander

Sanding hardwood floors with a rental drum sander: NWFA grit sequence, dust and lead safety, three pre-rental checks, finish reoccupancy timing.

Lagler Hummel Belt Sander: Belt Sizes, When It's Worth It

Lagler Hummel guide: 7-7/8 × 29-1/2 belts, rental inspection, honest when-it-justifies-the-cost rule, belt tracking, troubleshooting.

How Much Sandpaper Do I Need? (Sheet Calculator by Room)

Sandpaper sheet calculator for floor sanding — drum sheet and edger disc counts by room size, grit, and wood species. NWFA-aligned.

Bona FlexiSand DCS Buffer: Discs, Screens, Grit Sequence

Bona FlexiSand DCS buffer takes 16-inch screens, 5-inch multi-discs, and Power Drive plates. Grit sequence for screen-and-recoat and bare wood.

Drum Marks, Swirl Marks, Scratches: Floor Sanding Fixes

Fix common floor sanding problems including drum marks, swirl marks, and scratches under finish. Step-by-step causes and solutions.

Free Sandpaper Grit Chart PDF: Every Grit, Every Material

Printable sandpaper grit chart PDF — which grit for wood, drywall, metal, paint. NWFA-aligned 24 to 220 grit sequences, ready to download.

Silverline SL-8 Sandpaper: 8×20-1/8 Size Guide

Silverline SL-8 drum sander takes 8×20-1/8 sandpaper sheets. Grit sequence, quantity per room, rental tips, and how it compares to the Clarke EZ-8 and DU-8.