Rug Pads

A pad is the least interesting thing in this guide and the one with the best return on money spent.

What it actually does

Prevents foundation abrasion. This is the important one. Grit works down through the pile and sits against the foundation, where every footstep grinds it against a hard floor. That is wear happening from underneath, where you cannot see it, and it is the dominant mechanism by which rugs wear out. A pad removes the hard surface from the equation.

Stops creeping and slipping. A rug that moves is a rug wearing itself and a trip hazard, particularly at entryways and in kitchens.

Adds comfort and sound absorption.

Protects the floor from the rug's own foundation, which is abrasive.

What to buy

Felt (needle-punched)

Best cushioning and protection. Little grip.

Felt + natural rubber

The default recommendation. Grip and cushioning.

Natural rubber alone

Thin, high grip. For flatweaves and low pile.

Thickness

6–10mm under pile rugs; 3mm under flatweaves

Size

Cut about 25mm smaller than the rug on every side

Felt-and-natural-rubber is the right answer for most rugs on most floors: the felt cushions and protects, the rubber grips. Look for pads that state natural rubber rather than a synthetic adhesive backing.

Felt alone is the choice under a heavy rug that will not move anyway, or over fitted carpet where grip is not the issue.

Thin natural rubber suits flatweaves and kilims, where a thick pad would make the rug sit unnaturally high.

Cut it 25mm smaller than the rug on each side so the edges of the rug still lie down. A pad visible at the edge is worse than no pad aesthetically, and it catches feet.

What to avoid

Also avoid pads that are too thick for the situation — a 12mm pad under a low-pile rug in a dining room makes chairs harder to move, and under a door it may stop it clearing.

By floor type

Hardwood and engineered wood — felt with natural rubber. Nothing synthetic-backed.

Stone and tile — same, and the grip matters more because these floors are slicker.

Vinyl and LVT — check compatibility explicitly. Some rubber compounds react with vinyl plasticisers and stain permanently. Manufacturers usually state this.

Over fitted carpet — a firm, dense pad rather than a soft one. The aim is to stop the rug rippling on a soft surface.

Underfloor heating — thinner is better, so heat still reaches the room. A thick felt pad is effective insulation, which is the opposite of what you want.

Maintenance

Check the pad when you have the rug cleaned — every three to five years. Pads wear out, compress and degrade, and a failed pad quietly stops doing any of the jobs above.

Vacuum the floor underneath while you have the rug up. Grit accumulates there too.

Full maintenance context in rug cleaning and how often to clean.

The three questions

Types of rug pad compares the constructions — felt, natural rubber, the felt-and-rubber default, and the PVC and adhesive-backed pads to avoid outright, which are also the cheapest and most widely sold.

Rug pads by floor type is the one to read before buying, because the floor rules out different options in each case. Vinyl and LVT react with rubber of any kind; oiled and waxed wood wants pure felt; carpet reverses the whole logic and needs grip rather than cushioning.

And what size rug pad do you need covers the 25mm rule, why a pad reaching the rug's edge wears that edge first, and how to cut felt and rubber cleanly.