Stall DRY™

Stall DRY™ by Progressive Planet Products Stall DRY™ is

Considering shavings for horse stalls for your horse property?

Reviewed by Ann Pruitt, InfoHorse.com · Updated April 2026

Stall DRY Absorbent Deodorizer 40 lb bag by Progressive Planet, item W135

Stall DRY™ by Progressive Planet Products
Stall DRY™ is an effective solutions to odor in your barn, horse trailer or stalls!

Stall Dry Absorbent Deodorizer by Progressive Planet

Stall DRY® Absorbent Deodorizer an effective stall management tool made from a naturally occurring blend of food-grade diatomaceous earth and montmorillonite clay. It has the ability to neutralize ammonia and absorb odors and moisture. Stall DRY® is a trusted name brand used by all animal lovers. It is safe to use and is Omri® listed to use in organic production. Stall DRY® keeps animals safe from the harmful effects of ammonia and absorbs wetness while inhibiting bacteria and mold growth providing a cleaner, healthier, and fresher environment.

Keep your Pens, Calving and Foaling Stalls Clean, Dry and Ammonia Free with Stall DRY®  Stall DRY® absorbs up to 125% of its own weight in liquid and its microscopic porous structure helps to lock in ammonia causing compounds. Stall DRY® when used daily can improve the environment your animals live in, by reducing ammonia, odors, and moisture. Stall DRY® can reduce your bedding costs and reduce the labor required to clean out your stalls.

Ammonia From Urine and Manure is a Health Risk to Animals! Safe, non-toxic Stall DRY® has been providing the best in equine bedding management for over twenty-five years. Chemical free Stall DRY® helps keep stalls and pens fresh and extends the life of bedding. Stall DRY® works in two different ways, making it a highly effective management tool. Stall DRY’s high absorbency works quickly on moisture and wetness. In addition, Stall DRY’s slightly acidic pH helps to neutralize ammonia. Less airborne ammonia means a healthier, fresher barn environment. Experts agree that ammonia exposure is detrimental to a horse’s respiratory function and overall performance. Minimizing ammonia helps safeguard the health of your horse. Ammonia levels are significantly higher near the source – the urine and feces that accumulate on the stall floor. Ammonia is the most heavily concentrated in the bottom 24” of the stall. Horses lying down, or foraging dropped food bits off the floor, are exposed to higher ammonia levels. Not only can ammonia cause direct damage to the respiratory system, compromised airways are more vulnerable to bacterial and viral infections.What Is The STALL DRY® Advantage? • Omri® Listed for use in organic production
• Clinical testing has shown Stall DRY® immediately reduces ammonia levels.
• Stall DRY® absorbs up to 125% of its own weight in liquid and its microscopic porous structure helps to lock in
ammonia causing compounds.
• Stall DRY® helps to neutralize the pH of the litter which inhibits the bacterial growth that causes ammonia formation.
• Lowering moisture levels in stalls and stables discourages fly production.
• Non-toxic, non-corrosive, low dust, chemical-free Stall DRY® can be used on any surface.Ideal for Stalls, Barns, Trailers, Kennels, Paddocks, Pens & so much more!Application
• Apply approximately 4-5 lbs of Stall DRY® over a 10’ x 10’ stall (area).
• Place your usual bedding over the Stall DRY®.
• For daily maintenance apply ½-1 lbs of Stall DRY® over the wet bedding only, then go pick out the manure.
• With your muck fork toss the bedding where you applied Stall DRY®.How Can STALL DRY® Help With Manure Composting? Glad you asked! Every 2-3 days sprinkle 1-2 lbs of Stall DRY® over the manure pile (either in the spreader or the pile). This will control the odors, speed up composting, bind nutrients in the manure and allow you to use your manure in your fields, gardens or wherever you use it in an environmentally safe manner.

How Can I Apply For Pet Bedding?• Cages: Apply 2-3 inches of Stall DRY® evenly to a clean surface area. To refresh area, remove solid waste, stir up litter and
sprinkle a layer of Stall DRY® over area.
• To refresh bedding, thoroughly sprinkle over bedding surface.
• Sprinkle over surface area after changing or topping off your favorite pet litter.

NON-Clumping CAT Litter• Fill a clean, dry litter box with 2 - 3 inches of Stall DRY®.
• Remove waste daily with a slotted scoop.
• Add fresh Stall DRY® to litter box as required to keep litter box full.
• Completely empty and wash litter box once a month.

ALL Purpose Absorbent Stall DRY® can be used to remove oil spills or other liquid spills. Cover spill with a generous amount of Stall DRY®. Sweep up when dry. Use on oils, fuels, paints, coolants, grease, water, and other spills.

Environmental Control IS THE Backbone OF Your "Ammonia Management" Strategy! STALL DRY® IS Essential! Progressive Planet is dedicated to the best in all-natural solutions for you, your animals, and our environment. Our commitment. Find Progressive Planet Products at Tractor Supply and Amazon... or, of course at our website! Stall Dry® and Fresh Coop® can make your chicken coop or horse's stall and barn a truly refreshing place to be! Be sure to order your products today!

What exactly is Stall DRY?

Stall DRY® Absorbent Deodorizer is an all-natural stall-management granule made from a blend of food-grade diatomaceous earth and calcium montmorillonite clay. It is sold as a free-flowing powder you sprinkle directly onto stall floors, wet spots, and manure piles to lock up moisture and neutralize odor at the source. Because it is purely a mineral product with no harmful additives, it works on wood, concrete, dirt, rubber, and metal surfaces alike.

Stall DRY Absorbent Deodorizer 25 lb bag by Progressive Planet, item W134

Who makes Stall DRY?

Stall DRY is manufactured by Progressive Planet Inc. (formerly marketed under Absorbent Products Ltd.), a Canadian natural-minerals company headquartered at 724 East Sarcee Street, Kamloops, BC V2H 1E7, with a second location at Unit 9 – 1339 40 AVE NE, Calgary, AB T2E 8N6. Progressive Planet mines and processes diatomaceous earth and bentonite for animal feed, industrial absorbents, pet products, and natural insecticides. The company can be reached toll-free.

Stall DRY diatomaceous earth and montmorillonite clay granules applied in a horse stall

The minerals behind the absorbency

The diatomaceous earth in Stall DRY is the fossilized silica skeletons of ancient freshwater diatoms, prized for its enormous internal surface area and liquid-holding capacity. Blended with montmorillonite (calcium bentonite) clay, the granules can absorb up to 125% of their own weight in liquid while staying non-toxic and non-caustic. The product carries a near-neutral pH of approximately 6, so it will not irritate surfaces or scorch bedding the way harsh lime treatments can.

Stall DRY absorbent deodorizer spread across stall bedding for odor and moisture control

How Stall DRY conquers ammonia and odor

Urine and manure release harmful ammonia that can stress an animal's respiratory system, and Stall DRY tackles it two ways: the porous minerals soak up the moisture ammonia needs to off-gas, and the granules chemically bind and neutralize the odor itself. A drier stall floor also means fewer flies, since the granules can be sprinkled directly on manure piles to discourage breeding. Progressive Planet reports the product can help cut labor and bedding costs by up to 50% because bedding stays usable far longer.

How to apply it in your barn

For setup, sprinkle a light coat over the bare stall floor, add extra Stall DRY on any wet spots until the surface is dry, leave it in place, and then add fresh bedding on top. For daily upkeep, remove the solids during mucking and sprinkle roughly 16 oz onto the wet spots before re-bedding. The granules are safe to use with horses, cattle, poultry, rabbits, dogs, and most small animals (not recommended for reptiles or amphibians), and the spent material can be composted or worked into the garden.

Sizes, certification, and where to buy
Stall DRY is offered in a 25 lb bag (item W134) and a 40 lb bag (item W135), making it easy to scale from a single stall to a full barn or boarding operation. It holds current Omri Listings in both the US and Canada, so it is approved for use in certified-organic operations. You can order direct from Progressive Planet at progressiveplanet.com or buy it through farm-supply retailers and major online marketplaces.

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The Solution Section (FAQ)

What is Stall DRY™ made of?

Stall DRY™ by Progressive Planet Products is an absorbent deodorizer made from a naturally occurring blend of food-grade diatomaceous earth and montmorillonite clay. It is OMRI® listed for use in organic production and is non-toxic, non-corrosive, low-dust, and chemical-free, so it can be used on any surface.

How does Stall DRY™ control ammonia and odor in a barn?

Stall DRY™ works in two ways. Its high absorbency locks up moisture quickly, while its slightly acidic pH helps neutralize ammonia and inhibit the bacterial growth that creates ammonia. Less airborne ammonia means a healthier, fresher barn environment for horses, whose respiratory function is sensitive to ammonia exposure.

How much liquid can Stall DRY™ absorb?

Stall DRY™ absorbs up to 125% of its own weight in liquid. Its microscopic porous structure also helps lock in the compounds that cause ammonia, which is why it can reduce bedding costs and cut the labor needed to clean out stalls.

How do I apply Stall DRY™ to a horse stall?

Apply roughly 4-5 lbs of Stall DRY™ over a 10' x 10' stall and place your usual bedding on top. For daily maintenance, apply about ½-1 lb over the wet bedding only, pick out the manure, and toss the bedding with a muck fork where you applied it.

Can Stall DRY™ help with manure composting?

Yes. Every 2-3 days, sprinkle 1-2 lbs of Stall DRY™ over the manure pile, either in the spreader or on the pile. This controls odors, speeds up composting, and binds nutrients in the manure so you can use it safely in fields or gardens.

Is Stall DRY™ only for horse stalls, or can I use it elsewhere?

It is versatile. Stall DRY™ is ideal for stalls, barns, trailers, kennels, paddocks, and pens, and it can also be used as a non-clumping cat litter and as an all-purpose absorbent for oil, fuel, paint, coolant, grease, and other spills. Lowering moisture in stalls and stables also discourages fly production.

Is Stall DRY™ safe for animals, and how long has it been around?

Stall DRY™ is safe, non-toxic, and chemical-free, and it has been providing equine bedding management for over twenty-five years. Clinical testing has shown it immediately reduces ammonia levels, helping protect animals from the respiratory risks of ammonia from urine and manure.

Where can I buy Stall DRY™ or learn more?

Stall DRY™ by Progressive Planet Products is available at Tractor Supply and Amazon, or directly from the company. To order or read more, visit https://progressiveplanet.com/product/stall-dry/ or call 800-667-0336 to reach their friendly staff.

How does Stall DRY reduce ammonia and odor?

Ammonia from urine and manure needs moisture to off-gas into the air, so Stall DRY's minerals soak up that moisture and the porous granules bind and neutralize the odor directly. The result is fresher, more breathable air, which is important because ammonia can stress an animal's respiratory system. It begins working right away once applied to wet spots.

How do I apply Stall DRY to a new stall?

Sprinkle a light coat over the bare stall floor, whether it is wood, concrete, or dirt. Add additional Stall DRY directly onto any wet spots until the surface is dry, leave it in place, and then put your bedding down on top of it.

How do I use Stall DRY for daily stall cleaning?

During your daily mucking, remove the solid waste first, then sprinkle about 16 oz of Stall DRY onto the wet spots before re-bedding. Applying it consistently each day is what keeps stalls dry and odor-free over time. You can also sprinkle it on manure piles to help reduce flies.

Is Stall DRY safe for horses and other animals?

Yes. Stall DRY is non-toxic and non-caustic and is safe to use with horses, cattle, poultry, rabbits, dogs, and most small animals. The manufacturer notes it is not recommended for use with reptiles or amphibians, but for typical barn and livestock species it is considered a safe stall-management tool.

What size bags does Stall DRY come in?

Stall DRY is available in a 25 lb bag (item number W134) and a 40 lb bag (item number W135). The smaller bag suits a single stall, kennel, or small-animal space, while the 40 lb bag is more economical for full barns and boarding operations.

Is Stall DRY OMRI certified for organic operations?

Yes. Stall DRY holds current OMRI Listings in both the United States and Canada, which means it is approved for use in certified-organic operations. Progressive Planet publishes the current OMRI certificates and an SDS sheet on the product page.

Can Stall DRY reduce flies in the barn?

Yes. Because flies breed in moist manure, keeping waste areas drier discourages them, and you can sprinkle Stall DRY directly onto manure piles to further reduce fly populations. Drier, fresher stalls are simply less hospitable to flies and other pests.

Does Stall DRY save money on bedding?

It can. By keeping stalls drier, Stall DRY extends the usable life of your bedding so you replace it less often. Progressive Planet reports that it may help reduce labor and bedding costs by up to 50%, which adds up quickly across a busy barn.

Can I compost the used Stall DRY?

Yes. The spent material is safe for composting and can be worked into the garden, since it is made entirely from natural minerals. Diatomaceous earth and clay break down harmlessly, so cleanup from the stall does not become hazardous waste.

What surfaces can Stall DRY be used on?

Stall DRY is non-caustic and safe on wood, concrete, dirt, rubber mats, and metal surfaces. That means you can use it confidently on virtually any stall floor, in trailers, kennels, pens, and barn aisles without worrying about damaging the surface.

Who manufactures Stall DRY?

Stall DRY is manufactured by Progressive Planet Inc., a Canadian natural-minerals company headquartered at 724 East Sarcee Street, Kamloops, BC V2H 1E7, with an additional location in Calgary, Alberta. Progressive Planet mines and processes diatomaceous earth and bentonite for animal, industrial, and pet applications. The product was previously marketed under the Absorbent Products Ltd. name.

Where can I buy Stall DRY?

You can order Stall DRY directly from Progressive Planet at progressiveplanet.com, or buy it through farm and feed retailers and major online marketplaces. To reach the company about availability you can call toll-free at 1.800.910.3072.

Besides horse stalls, where else can Stall DRY be used?

Stall DRY works in any space where moisture and odor are a problem, including barns, trailers, kennels, pens, poultry houses, vet clinics, shelters, and small-animal enclosures. Its absorbency and odor control make it useful well beyond a single horse stall.

What is the pH of Stall DRY, and why does it matter?

Stall DRY has a near-neutral pH of approximately 6. That gentle pH is important because it means the product will not scorch bedding or irritate skin and hooves the way some highly alkaline lime-based stall treatments can, making it safer for daily, hands-on use around animals.

Does Stall DRY work right away?

Yes. Once sprinkled onto wet spots, the diatomaceous earth and clay begin absorbing moisture and neutralizing odor immediately. There is no waiting period or activation step, so a freshly treated stall is fresher and drier on the spot.