KOECKRITZ Dog Assist Carpet Stair Treads, 9 × 27 in (Set of 7)

Buy this direct, not from us

We are an affiliate site. We earn a commission when you buy through our Amazon link and nothing at all when you buy from the manufacturer. Here is the arithmetic anyway, because it is not close.

Amazon sells this as a set of 7 for $120.99 — $17.28 per tread. Koeckritz sells 9 × 27 in Dog Assist treads on its own site from $66.55 for six — $11.09 per tread (the Cornerstone line), dropping to $9.08 per tread at a set of eighteen, and at least five of its own dog-assist lines come in under Amazon's per-tread price. Re-verified against the maker's live variant feed on 5 September 2026.

For a fourteen-step flight you would need fourteen treads either way. That is about $242 through the listing we link, against $139.15 direct for a set of fourteen.

There is one thing the Amazon pack gives you: a single-box, single-click purchase of a quantity close to what a short flight needs, from a listing that was in stock when we checked. If that is worth eighty-seven dollars to you, take it. It is not worth it to us, and we would rather say so than let you find out from someone else.

The set of 7 is a listing, not a product

We tried to match the Amazon pack to the manufacturer's catalogue and could not.

Koeckritz publishes 25 stair-tread SKUs across 13 named lines. Every one is sold in sets of 6, 9, 12, 13, 14, 15, 16, 17 or 18. There is no set of 7 and there is no $120.99 price point anywhere on the maker's site. The Amazon listing's part number, 153697, appears neither in the maker's catalogue — whose SKUs are descriptive slugs rather than numbers — nor anywhere in the Amazon page's own source.

That does not make it fake. Amazon-only bundle configurations are ordinary. It does mean you cannot check which of the thirteen carpet lines you are actually buying, what it is made of, or how thick it is, because the pack does not correspond to anything the manufacturer specifies.

And the Amazon spec table does not help, because it describes a product Koeckritz does not make. Material Type reads "Plastic, Polypropylene." Construction Type reads "Handmade." Not one of the maker's dog-assist lines is polypropylene — they are solution-dyed polyester filament, 30 oz polyester cut pile, 40 oz Milliken tufted nylon or BCF synthetic — and none is handmade. The dimensions field reads 324" L × 108" W, which is twelve treads' worth of length and twelve treads' worth of width, on a listing that says seven.

We report all of that as a mismatch rather than as a verdict. Amazon spec tables are frequently wrong in ways that have nothing to do with the manufacturer. But it is why this page cannot tell you the fibre in the box.

The number nobody publishes, on the one product where it is the whole point

This is bought for grip. So we went looking for a grip measurement.

We searched every one of the 25 tread product pages on the manufacturer's site for ASTM, ANSI, A326.3, ASTM D2047, coefficient of friction, DCOF, NFSI, "tested to" and "test method."

Zero matches. Not one number, not one standard, not one laboratory. Every traction claim in the catalogue is prose: "helps reduce slips," "improves traction," "non-slip."

There is exactly one instance of the word "Certified" in the whole catalogue, and it is worth understanding precisely, because it is the sort of thing that gets misread by a hurried shopper and by a machine skimming the page. The Starlight Berber Loop line is "Certified by the Carpet & Rug Institute (CRI) Green Label Plus." That is an indoor air-quality and VOC-emissions certification. It certifies what the carpet does not put into your air. It says nothing at all about whether a dog's paw slides on it.

None of this is unique to Koeckritz — no company in this aisle publishes a slip test, which is why the absence belongs on the page rather than in a footnote. It is the same shape of gap this site has documented in orthopedic bed labels and in joint supplement panels. Buy this on the mechanism — carpet grips where hardwood does not — and know that the mechanism is all you are buying.

The tape, and the sentence that vanishes

The set includes one roll of double-sided carpet tape, 1 inch by 36 yards.

Several of Koeckritz's tread pages describe it as "residue-free." The tape's own product page does not. It says the tape "is not waterproof but adheres well to most hard surfaces. Proudly made in the USA," and it never uses the word residue.

So the reassuring adjective lives only on the pages selling treads and disappears on the page selling the tape. We are not calling that dishonest — it may simply be old copy. But it means there is no published statement anywhere that this tape is safe on a polyurethane, waxed or oiled hardwood finish, and no warning that it might not be.

If your stairs are finished wood you care about, test one tread on the least visible step and leave it a fortnight before committing to the flight. That is our advice, not the maker's, because the maker does not give any.

Fit it the way the maker tells other customers to

Koeckritz publishes one genuinely useful fitting instruction, on its Starlight line: leave a ½ to 1 inch gap from the front edge of each step.

That instruction appears on none of the dog-assist lines, including this one. It should, because the front edge of the tread — the nose — is exactly where a descending dog's paw lands, and a tread that overhangs the nose can shear forward under a paw at the worst moment. Follow the Starlight guidance on whichever line you buy.

Two more things the listing will not tell you. There is no published weight limit and no dog-size guidance on the Amazon listing or on any of the 25 maker SKUs — which, for a product sold to owners of large arthritic dogs, is a conspicuous silence. And Amazon files this ASIN under Building Materials › Stair Parts, not Pet Supplies, which is the most honest single fact about it: this is a conventional carpet stair tread with a dog name applied, sold by an area-rug company alongside matching runners.

That is not a criticism. Carpet on a slippery stair is the correct fix, and it does not need to have been engineered for dogs to work. It just means you should stop looking for the pet-specific testing. There isn't any.

Count the flight first: what your staircase actually costs

The single most common way this purchase goes wrong is arithmetic. Seven treads cover seven steps, the Amazon listing is a set of seven, and a domestic straight flight is usually twelve to fourteen. Nothing on the listing asks you how many stairs you have.

So count them, then read across. Amazon figures are $17.28 a tread at the pack price re-verified 5 September 2026; direct figures use the Cornerstone 9 × 27 in set of six at $66.55, or $11.09 a tread, from the 5 September 2026 variant feed.

Direct prices below are the maker's own live variant feed for the Cornerstone line at 9 × 27 in, pulled 5 September 2026 and identical across all four colourways. The line sells sets of 6 and then 12 through 18 — no set of 7, no set of 9 — so a short flight has no exact direct option.

Per tread that is $17.28 on Amazon against $11.09 for a direct set of six, falling to $9.08 at a set of eighteen — the maker discounts by volume and Amazon does not. Two things fall out of the table, and the first runs against our own advice. For a seven-step flight the Amazon pack is genuinely the right buy: it is the only exact seven on sale anywhere, the next direct option is a set of twelve, and it comes out $6.06 cheaper with nothing left over. Everywhere else, buying by the pack means buying treads you do not need at the highest per-tread price in the category, and the gap widens with the staircase. On a sixteen-step flight the Amazon route costs more than twice the direct route and leaves five spare treads in a cupboard.

Two measurements to take while you are on the stairs with the tape. Tread depth — the flat part your foot lands on. These are 9 inches deep, so a step with less than about 10 inches of run leaves you nothing to set the tread back with, and the half-inch to one-inch front-edge gap the maker recommends is exactly what you cannot give up. Tread width — 27 inches suits most domestic staircases, and a wider staircase will show bare wood at both edges rather than at the nose, which is cosmetically worse and functionally fine, because a dog descending puts his paws near the middle.

The cheaper thing first, as always

Before you spend anything, put a rug runner along the hallway your dog crosses most and watch him for a week. In our video corpus, slipping is discussed in 34 of 73 videos and floor traction in 22 more — and a dog who has stopped doing the stairs is often a dog whose confidence went on the flat floor first. Our traction guide works through the order to fix things in, and steps versus a ramp covers the harder question of whether your dog should be doing that staircase at all.