Stall DRY™

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

Tired of ammonia stink in your barn and want an OMRI-listed diatomaceous-earth deodorizer?

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

Stall DRY Absorbent & Deodorizer 40 lb bag (SKU W135) by Progressive Planet

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 atTractor 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 Absorbent & Deodorizer?

Stall DRY is a dry, granular stall-management product made by Progressive Planet Inc. that you sprinkle over stall floors, pens, and bedding to absorb moisture and neutralize odor. Its guiding promise is simple: "Diatomaceous Earth & Montmorillonite Clay, the Safe Solution for Stall Management!" Rather than masking smells with fragrance, it pulls liquid and ammonia out of the wet spots where they build up, leaving a drier, fresher, more breathable barn.

Stall DRY Absorbent & Deodorizer 25 lb bag (SKU W134) by Progressive Planet

Who makes Stall DRY, and where do they ship from?
Stall DRY is manufactured by Progressive Planet Inc., headquartered at 724 East Sarcee Street, Kamloops, BC, Canada V2H 1E7, with a second facility at Unit 9 – 1339 40 AVE NE, Calgary, AB, Canada T2E 8N6. The company can be reached. Progressive Planet specializes in naturally sourced mineral products, and Stall DRY is one of its flagship animal-care lines sold across the U.S. and Canada.

Stall DRY diatomaceous earth and montmorillonite clay granules being applied for stall management

What is Stall DRY made of?

Stall DRY is a naturally occurring blend of premium food-grade diatomaceous earth and montmorillonite clay, with no harmful chemical additives. Diatomaceous earth is a fine, porous mineral prized for its enormous liquid-holding surface area, while montmorillonite clay is a highly absorbent expanding clay. Together they give Stall DRY its headline performance claim: it "Absorbs up to 125% of its Weight in Liquid."

Stall DRY absorbent deodorizer used to keep a horse stall floor dry and ammonia-free

How does Stall DRY control ammonia, moisture, and flies?
When urine and manure collect in a stall, they release ammonia gas that irritates a horse's airways and your own. Stall DRY's mineral granules wick that liquid up and bind the ammonia at its source, so the air stays clearer and the bedding stays drier. The benefit list on Progressive Planet's page also includes "Fewer Flies" and "Aids in Composting" — a drier floor gives flies fewer wet spots to breed in, and the spent product can go onto the compost pile.

How do you apply Stall DRY in a horse stall?

Start with a light coat sprinkled over the bare stall floor — wood, concrete, or dirt — and add extra Stall DRY directly onto any wet spots until the surface is dry before laying down bedding. Then, during daily mucking, remove the solids, sprinkle roughly 16 oz onto the freshly exposed wet spots, give it a short time to work, and replace the bedding. Used this way, Stall DRY can stretch the life of your bedding and cut down on how often you strip the stall completely.

Who is Stall DRY for, and how is it sold?
Stall DRY is built for horses but works just as well for chickens, rabbits, and other large and small animals — and is a fixture in stables, vet clinics, shelters, kennels, and small-animal enclosures. It is carried in two retail sizes: the 25 lb bag (SKU W134) and the 40 lb bag (SKU W135). Both carry Omri certification for the United States and Canada, confirming the mineral blend is acceptable for use in organic operations.

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The Solution Section (FAQ)

What is Stall DRY®, and what is it made of?

Stall DRY® Absorbent Deodorizer is an effective stall management tool made from a naturally occurring blend of food-grade diatomaceous earth and montmorillonite clay. It neutralizes ammonia and absorbs odors and moisture. Stall DRY® is safe to use and is OMRI® listed for use in organic production. Progressive Planet has been providing Stall DRY® for over twenty-five years.

How does Stall DRY® reduce ammonia and moisture?

Stall DRY® works in two ways. First, its high absorbency works quickly on moisture — it absorbs up to 125% of its own weight in liquid, with a microscopic porous structure that helps lock in ammonia-causing compounds. Second, its slightly acidic pH helps neutralize ammonia. Less airborne ammonia means a healthier, fresher barn environment.

Why is reducing ammonia important for horse health?

Ammonia exposure is detrimental to a horse's respiratory function and overall performance. Ammonia levels are significantly higher near the source — the urine and feces that accumulate on the stall floor — and are most heavily concentrated in the bottom 24 inches of the stall. Horses lying down or foraging dropped food bits off the floor are exposed to higher ammonia levels. Compromised airways are more vulnerable to bacterial and viral infections.

How do I apply Stall DRY® to a stall?

Apply approximately 4 — 5 lbs of Stall DRY® over a 10' x 10' stall. Place usual bedding over the Stall DRY®. For daily maintenance, apply 1/2 — 1 lb over the wet bedding only, then pick out the manure. Toss the bedding with a muck fork where Stall DRY® was applied.

Can Stall DRY® help with manure composting?

Yes. Every 2 — 3 days sprinkle 1 — 2 lbs of Stall DRY® over the manure pile (in the spreader or the pile). This controls odors, speeds up composting, binds nutrients in the manure, and allows you to use the manure in fields, gardens, or wherever it's used in an environmentally safe manner.

Where can I buy Stall DRY®?

Find Progressive Planet Products at Tractor Supply and Amazon, as well as the company website. Progressive Planet also makes Fresh Coop® for chicken coops.

What is Stall DRY Absorbent & Deodorizer?

Stall DRY is a dry, granular stall-management product from Progressive Planet Inc. made from a naturally occurring blend of food-grade diatomaceous earth and montmorillonite clay. You sprinkle it onto stall floors, pens, and bedding to absorb moisture and neutralize ammonia odor. The brand describes it as 'the SAFE Solution for Stall Management.'

Who makes Stall DRY?

Stall DRY is manufactured by Progressive Planet Inc., a Canadian company that specializes in naturally sourced mineral products. Its head office is at 724 East Sarcee Street, Kamloops, BC, Canada V2H 1E7, with an additional facility in Calgary, Alberta. You can reach the company at 1.800.910.3072.

What is Stall DRY made of?

Stall DRY is a blend of premium food-grade diatomaceous earth and montmorillonite clay, with no harmful chemical additives. Diatomaceous earth is a porous mineral with a huge liquid-holding surface area, and montmorillonite is a highly absorbent expanding clay. Both are naturally occurring minerals rather than synthetic chemicals.

How much liquid can Stall DRY absorb?

According to Progressive Planet, Stall DRY 'Absorbs up to 125% of its Weight in Liquid.' That high absorption is what lets it dry out wet spots in a stall quickly and keep bedding usable longer. The mineral granules trap the moisture rather than just spreading it around.

How does Stall DRY reduce ammonia odor?

Urine and manure in a stall break down and release ammonia gas, which irritates a horse's respiratory system and yours. Stall DRY's mineral granules absorb the liquid and bind the ammonia at its source, so less of it escapes into the air. The result is clearer, more breathable air in the barn instead of a fragrance simply covering the smell.

How do I apply Stall DRY in a horse stall?

Begin by sprinkling a light coat over the bare stall floor — wood, concrete, or dirt — and add extra Stall DRY on any wet spots until the surface is dry, then lay down your bedding. During daily cleaning, remove the solids, sprinkle roughly 16 oz onto the wet spots that are exposed, let it work for a short time, and put the bedding back. This daily routine keeps the floor dry without a full strip-out every day.

What size bags does Stall DRY come in?

Stall DRY is sold in two retail sizes: a 25 lb bag (SKU W134) and a 40 lb bag (SKU W135). The 40 lb size is popular for larger barns and multiple stalls, while the 25 lb bag suits smaller setups or single stalls. Both contain the same diatomaceous earth and montmorillonite clay blend.

Is Stall DRY safe for horses and other animals?

Stall DRY is made from food-grade diatomaceous earth and montmorillonite clay with no harmful additives, which is why the brand calls it 'the SAFE Solution for Stall Management.' It is used around horses, chickens, rabbits, and other large and small animals. As with any dusty mineral product, applying it directly to the floor and letting it settle before stirring up bedding is good practice.

Can Stall DRY be used for animals other than horses?

Yes. While it is built for horse stalls, Stall DRY also works for chickens, rabbits, and other large and small animals, and it is used in stables, vet clinics, shelters, kennels, and small-animal enclosures. The same absorb-and-deodorize action that helps a stall floor works in coops, cages, and pens.

Does Stall DRY help with flies?

Progressive Planet lists 'Fewer Flies' among Stall DRY's benefits. Flies breed in wet, soiled bedding, so by drying out the wet spots that attract and sustain them, Stall DRY removes some of the moisture they depend on. A drier stall is a less hospitable place for flies to lay eggs.

Is Stall DRY OMRI certified for organic use?

Yes. Progressive Planet provides OMRI certificates for both the United States and Canada, meaning the mineral blend is listed as acceptable for use in certified organic operations. The company also publishes a Safety Data Sheet (SDS) for the product.

Can Stall DRY be composted after use?

Yes — 'Aids in Composting' is listed as one of its benefits. Because Stall DRY is a natural mineral product rather than a synthetic chemical, the spent material removed from the stall can go onto a compost pile along with the manure and soiled bedding. This makes cleanup disposal straightforward for barns that compost.

Does Stall DRY save money on bedding?

By absorbing moisture and keeping bedding drier, Stall DRY helps extend how long shavings, straw, or other bedding stay usable before they need replacing. Many users find they can spot-clean wet areas daily rather than stripping and re-bedding the whole stall as often. Over time, that reduced bedding turnover can offset the cost of the product.

Why is ammonia control important in a barn?

Ammonia from urine and manure is a respiratory irritant that can affect a horse's airways over time, and it is unpleasant for handlers too. A barn that smells strongly of ammonia is usually a sign that wet spots are not being managed. Stall DRY targets that problem directly by binding ammonia where the moisture sits.

What surfaces can I use Stall DRY on?

Stall DRY can be applied to wood, concrete, or dirt stall floors. You sprinkle a light coat over the whole floor and concentrate extra product on the wettest areas. Because it is a loose granular mineral, it conforms to whatever flooring the stall has underneath the bedding.

How is Stall DRY different from lime or scented stall products?

Unlike scented products that mask odor with fragrance, Stall DRY actually absorbs the moisture and binds the ammonia that cause the smell. It relies on natural diatomaceous earth and montmorillonite clay rather than caustic agricultural lime, and it is OMRI certified for organic use. The goal is a genuinely drier, fresher stall rather than a perfumed cover-up.