Best knotless polyester netting for mezzanine floors

Top pick: 1/8" Knotless Polyester Netting (Duranets). It's the only true knotless polyester netting here, and polyester is the right choice for a mezzanine: it shrugs off damp and UV better than nylon, and the knotless Raschel weave has no knots to slip or snag. At 100 lb mesh breaking strength it's fine for guarding, edge protection and keeping small items from rolling off.

Who the others suit:

• 1/2" Heavy Knotless Netting — the strongest of the bunch (219 lb/ft, 14 ft wide, 5-year UV warranty): pick it for a long span or where people lean on it.
• 1/16" Nylon Knotless — same 100 lb strength in a finer mesh; good for small parts and tools, but nylon, not polyester.
• 1/4" and 3/4" Knotless — lighter-duty, better for light screening than load-bearing guarding.
• 1/32" and 2-1/2" square netting — fine mesh for debris or very small items; the wide square is more of a general-purpose net.
• Lee Fisher poly knotless rolls — bulk 100 lb fishing-grade netting; only worth it if you're netting a very large area.

Whatever you choose, fix it to a proper frame or posts and check the mesh is small enough that nothing you store up there can fall through.