What is a coir doormat?

Coir is the only material on this site that removes dirt mechanically rather than by absorbing it. Coconut fiber is stiff enough to act as a brush, which is why it takes caked, dried mud off a boot tread when a soft chenille mat just gets muddy. If the problem at your door is solid rather than wet - garden soil, dried clay, gravel dust - this is the material.

Kempf is on this list specifically because it publishes thickness. The standard line is one inch; there is a two-inch line for heavy scraping. Nobody else in the coir category will tell you a number, and thickness is the single most consequential spec a mat has once you consider where it has to sit.

Which brings the hard limit: at one inch, this mat cannot go under a door. Not a tight door, not any door - a standard interior door is hung with half to three-quarters of an inch of clearance and this mat is thicker than the gap. Coir lives outside the door, on the step or the porch, where the door swings away from it. That is not a compromise; that is the correct position for a scraper in a layered system.

Two honest warnings. Coir sheds, heavily, for the first few weeks - you will sweep loose fiber and it does stop. And coir is organic: left in a fully exposed position that stays wet, it will hold water and eventually rot. A covered porch or an overhang roughly doubles its usable life. If your entry has no cover at all, a rubber scraper is the more durable choice - see coir versus chenille versus rubber.

This mat has one job and it is not absorbency. It is a woven top bonded to a natural rubber backing, and the assembly sheds water rather than holding it. That sounds like a weakness until you have owned an absorbent outdoor mat through a wet November and discovered that what you actually own is a permanently saturated sponge that keeps the water at your threshold instead of away from it.

Outside the door, waterproof beats absorbent every time. Water needs to run off the mat and away; grit needs somewhere to fall out of the tread. Gorilla Grip builds this one with deep grooves, a beveled rubber border and what it calls a retention dam, then it cleans with a hose in thirty seconds - the cleaning method people will genuinely perform, unlike hauling a soaked outdoor mat into a washing machine.

Gorilla Grip also specifies stain and fade resistance, which matters more outdoors than most buyers expect. UV is what turns a black rubber mat chalky gray in a single summer, and a mat that has gone gray and stiff has usually also gone brittle around the edges.

The thing this mat cannot do is finish the job. It is stage one of a layered system - scrape outside, absorb inside. Pair it with a chenille mat immediately in from the door and you have the household version of what commercial buildings have used for decades. Buy it as the only mat and you will have clean boot treads and wet floors. Our coir versus chenille versus rubber comparison sets out which material belongs at which position.

This is the mat we would not buy, and it is on the list because a roundup where everything wins is an advertisement rather than a comparison.

There is nothing wrong with it. It is natural rubber, it is low profile, it traps dirt and moisture in the way rubber mats do, and it hoses clean. If you bought it you would probably be fine.

The problem is that Smiry publishes nothing you can check. No thickness, so you cannot answer the door-clearance question before it arrives. No rubber grade or UV treatment, so you cannot predict whether it survives a summer. No durability claim of any kind, which in a category whose characteristic failure is exactly durability - rubber going chalky, stiff and brittle - is the specification that matters most.

Compare that with the alternatives at close to the same money. Gorilla Grip states stain and fade resistance on the WeatherMAX. WaterHog publishes thickness, fabric weight and construction. Kempf publishes coir thickness to the inch. Buying the unspecified option saves a few dollars and costs you the ability to tell whether you bought the right thing until a year has passed. That is the trade, stated plainly; if you take it knowingly, that is a legitimate choice.

WaterHog is the mat you have already walked on hundreds of times without noticing - it is the standard entrance mat in commercial lobbies, and Bungalow Flooring sells domestic-sized versions of the same construction. Buying it is buying a specification rather than a look.

That specification is the most complete on this page. The Classic construction is published at three-eighths of an inch thick with a gripper backing, or closer to a quarter inch with the smooth backing intended for hard floors, using a 24 ounce per square yard PET fabric. Two numbers - thickness and fabric weight - are two more than most of this category publishes, and together they tell you almost everything: how much it holds, and whether your door will clear it.

The construction detail that matters is bi-level. The raised ridges hold the walking surface up while grit falls into the channels below, so the dirt you scrape off is not the dirt you then walk back over. That is why commercial buildings use it in the second zone of an entry system, and it works the same way at a domestic front door.

The honest downside is cleaning. This is not a mat you put in a washing machine. It hoses down well and it dries reasonably fast, but that is an outdoor job on a dry day rather than a laundry-day job. If the appeal of a mat for you is that it goes in the wash, buy chenille - see best absorbent chenille mats. If the appeal is that it will still be flat and still be working in five years, buy this.