Most standard dog waste bags are about 9 × 13 inches, or 23 × 33 cm.
This size is common because it gives users enough hand coverage, enough length to tie the bag, and a roll size that fits many leash dispensers.
But dog waste bag size should not be checked alone.
For private label, OEM, retail and wholesale buyers, bag size also affects roll diameter, box size, dispenser fit, carton packing, shipping weight and customer experience.
A small size change can move through the whole product.
The bag changes.
The roll changes.
The box changes.
The carton changes.
This guide explains the standard dog waste bag size, why 9 × 13 inches is common, how thickness changes roll size, and how brands can choose the right size for retail, Amazon, dog waste stations and OEM projects.
What Is the Standard Dog Waste Bag Size?
The most common dog waste bag size is:
9 × 13 inches, or about 23 × 33 cm.
This size is widely used for roll bags because it gives most users enough space to cover the hand, pick up dog waste, turn the bag inside out and tie it after use.
For production, many factories write this size as 23 × 33 cm.
| Item | Common Specification |
|---|---|
| Width | 9 inches / about 23 cm |
| Length | 13 inches / about 33 cm |
| Thickness | 15–20 microns |
| Common roll count | 15 bags/roll |
| Format | Perforated roll bags |
| Common use | Retail packs, leash dispensers, private label dog waste bags |
A 9 × 13 inch bag is not the only possible dog poop bag size.
But it is a practical starting point.
It balances coverage, cost, roll size and dispenser compatibility.
The Spruce Pets has also reviewed compostable dog poop bags with 9 × 13 inch dimensions and 15-count rolls designed to fit standard leash-attached holders, which matches the format many retail buyers already know.
Dog Waste Bag Size in Inches and Centimeters
Inches and centimeters are often mixed in international sourcing.
Do not treat them casually.
9 inches is about 22.86 cm.
13 inches is about 33.02 cm.
In factory production, this is usually rounded to 23 × 33 cm.
| Size in Inches | Approx. Size in cm | Common Use |
| 9 × 13 in | 23 × 33 cm | Standard roll bags |
| 8 × 13 in | 20 × 33 cm | Some refill or station rolls |
| 9 × 14 in | 23 × 35 cm | Larger dog or premium pack |
| Custom size | Custom | Retail, handle bag or special project |
For OEM and private label orders, always confirm whether the size is written in inches or centimeters before sampling.
This sounds basic.
But size mistakes often start with unit conversion.
If your purchase order says 9 × 13 inches, do not assume the supplier reads it as 23 × 33 cm unless both sides confirm it.
Why 9 × 13 Inches Became the Common Size
The 9 × 13 inch dog waste bag size became common for practical reasons.
It works for the user.
It works for the roll.
It works for many packaging formats.
1. Enough hand coverage
A 9-inch width gives most users enough space to cover the hand when picking up waste.
If the bag is too narrow, users may feel exposed.
That can lead to poor reviews.
2. Enough length to tie
A 13-inch length gives enough extra film to turn the bag inside out and tie it after use.
Smaller bags may save material, but they can be harder to tie.
A bag that cannot be tied easily does not feel reliable.
3. Fits many leash dispensers
This size can be rolled into a compact roll that fits many standard leash dispensers.
The flat bag size is only one part of dispenser fit.
The final roll diameter and roll height still need to be tested.
4. Efficient for manufacturing
For manufacturers, 9 × 13 inches is also efficient for film cutting, perforation and roll winding.
A standard size can help control cost and keep production consistent.
That matters for repeat orders.
Is 9 × 13 Inches Enough for Large Dogs?
For most daily dog walking use, 9 × 13 inches is enough.
For very large dogs, some brands may choose a slightly longer bag, such as 9 × 14 inches, to give users more tying space.
But larger bags also use more material.
They may increase:
- roll diameter;
- retail box size;
- carton weight;
- shipping volume;
- and cost per bag.
That is why many brands still choose 9 × 13 inches as the standard dog poop bag size, then improve user experience through better thickness, seal strength, perforation and easy-open film.
Bigger is not always better.
The right size depends on the customer and the pack format.
How Thickness Changes Roll Diameter
Bag size is only one part of the final roll size.
The same 9 × 13 inch bag can produce a different roll diameter when the thickness changes.
For example, a 15-micron roll will usually be smaller than an 18-micron or 20-micron roll with the same bag count.
That matters because roll diameter affects:
- leash dispenser fit;
- retail box size;
- paper sleeve size;
- carton packing;
- shipping volume;
- and Amazon FBA unit dimensions.
| Thickness | Typical Positioning | What to Check |
| 15 μm | Economy or lightweight pack | Strength and opacity |
| 18 μm | Common private label option | Balance of cost and strength |
| 20 μm | Premium or stronger feel | Roll diameter and box fit |
Here is the simple rule:
Bag size + thickness + bags per roll + core size
→ roll diameter
→ dispenser fit / box size / carton packingIn our own OEM projects, many packaging problems do not come from the flat bag size.
They come from roll diameter.
A buyer may approve 9 × 13 inch bags, then later change from 18 microns to 20 microns. The roll becomes larger. The original box may no longer fit well.
That is why a physical roll sample matters.
Bags Per Roll and Dispenser Fit
Most retail dog waste bag rolls use compact roll counts.
15 bags per roll is very common, especially for leash dispenser packs.
Some brands also use 18 or 20 bags per roll for larger pack counts.
Dog waste station rolls are different. They may use high-count rolls, such as 200 bags per roll, and are not usually made for standard leash dispensers.
| Bags Per Roll | Common Use | Watch Point |
| 15 bags/roll | Retail and leash dispenser packs | Compact and widely used |
| 18 bags/roll | Retail packs with higher count | Check roll diameter |
| 20 bags/roll | Larger retail or refill packs | Check dispenser and box fit |
| 200 bags/roll | Dog waste station rolls | Not for standard leash dispensers |
If the product needs to fit a leash dispenser, test the final roll.
Do not test only the flat bag.
A roll can fail even when the bag size is correct.
Dog Waste Bag Size by Sales Channel
The right dog waste bag size depends on where the product will be sold.
A private label Amazon product may need a retail box.
A dog waste station roll may need a high-count roll.
A premium pet brand may want better hand feel and a slightly thicker bag.
| Sales Channel | Recommended Size Direction | Notes |
| Amazon FBA | 9 × 13 in / 23 × 33 cm | Check retail box and FNSKU area |
| Retail store | 9 × 13 in | Box or sleeve should show clear bag count |
| Private label brand | 9 × 13 in, 18–20 μm | Good balance of usability and branding |
| Dog waste station | 20 × 33 cm or custom high-count roll | Check station dispenser compatibility |
| Distributor / wholesale | Standard size with efficient carton packing | Focus on carton weight and CBM |
| Premium pet brand | 9 × 13 in or 9 × 14 in | Check hand feel, opacity and box size |
Do not choose a dog waste bag size in isolation.
Choose it with the sales channel in mind.
A product for Amazon and a product for a public dog waste station may both be dog waste bags.
But they are not the same pack.
How to Choose Dog Waste Bag Size for Private Label
For most private label dog waste bag brands, 9 × 13 inches is a safe starting point.
But buyers should not confirm size alone.
Before sampling, check:
- target customer;
- bag thickness;
- bags per roll;
- roll diameter;
- paper core size;
- dispenser fit;
- retail box size;
- carton packing;
- and target selling channel.
| Buyer Question | Why It Matters |
| Who will use the bag? | Small dog owner, large dog owner, city walker or pet brand buyer |
| Will it fit a leash dispenser? | Roll height and diameter must be checked |
| Will it go into a retail box? | Box size depends on roll size |
| Is it for Amazon FBA? | Unit size and carton data matter |
| Is the bag compostable? | Material and thickness may affect roll size |
For private label retail projects, see our private label dog poop bags.
For custom sizes, colors and packaging formats, visit our custom dog poop bags .
Compostable Dog Waste Bag Size and Material Notes
Compostable materials can affect the final feel, thickness and roll size of the bag.
If you are choosing compostable dog waste bags, confirm both the material and the finished roll dimensions before approving packaging.
Do not approve only:
- flat bag size;
- material name;
- or box artwork.
Approve the real roll.
Environmental claims also need care. The FTC Green Guides state that environmental marketing claims should not mislead consumers and should be supported by evidence. They also provide specific guidance for claims such as compostable and degradable.
For certificate scope and logo use, review our compostable certifications.
Common Dog Waste Bag Size Mistakes
1. Only checking flat bag size
The flat bag size is important.
But buyers also need roll diameter, roll height and packaging fit.
2. Mixing inches and centimeters
9 × 13 inches is often rounded to 23 × 33 cm.
Confirm the unit before sampling.
3. Designing the box before confirming roll diameter
The real roll should guide the box size.
Not the other way around.
4. Choosing thicker film without checking dispenser fit
Changing from 18 μm to 20 μm may increase roll diameter.
That can affect the dispenser and box.
5. Assuming all 9 × 13 inch bags are the same
Material, thickness, paper core, perforation and winding tightness all affect the final product.
6. Forgetting tolerance
Production has normal size and thickness tolerance.
Confirm tolerance before mass production.
7. Using retail roll data for station bags
Dog waste station rolls often have different roll counts, dispenser requirements and carton packing.
Do not treat them as standard leash-dispenser rolls.
Dog Waste Bag Size Checklist for Buyers
Use this checklist before confirming your dog waste bag dimensions.
Flat bag size
- Bag width confirmed
- Bag length confirmed
- Inches and cm checked
- Flat size or gusseted size confirmed
- Size tolerance confirmed
Film and roll
- Thickness selected
- Bags per roll confirmed
- Paper core size confirmed
- Roll height measured
- Roll diameter measured
- Winding tightness checked
- Perforation tested
Packaging
- Dispenser fit tested
- Retail box inner size checked
- Paper sleeve size checked if used
- Carton packing reviewed
- Carton weight checked
- Amazon FBA unit size checked if needed
Final approval
- Physical sample approved
- Final roll measured
- Packaging sample approved
- Repeat order specification saved
For production checks before ordering, review our OEM dog waste bags checklist.
If the product will be sold on Amazon, see our Amazon FBA compostable dog waste bags packaging guide.
FAQ
What is the standard dog waste bag size?
The standard dog waste bag size is usually 9 × 13 inches, or about 23 × 33 cm. This size is common for roll bags used in leash dispensers and private label retail packs.
Why are most dog waste bags 9 × 13 inches?
Most dog waste bags use this size because it gives enough hand coverage, enough tying space and a compact roll size that fits many standard leash dispensers.
What is 9 × 13 inches in centimeters?
9 × 13 inches is about 22.86 × 33.02 cm. In production, this size is often rounded to 23 × 33 cm.
Is 9 × 13 inches enough for large dogs?
For most daily dog walking use, yes. Some brands may choose 9 × 14 inches or another custom size for larger dogs or premium positioning.
What thickness is best for dog waste bags?
18 microns is a common private label option because it balances strength, cost and roll size. 20 microns can feel stronger, but it may increase roll diameter and cost.
How many bags are usually in one roll?
15 bags per roll is very common for retail and leash dispenser packs. Some brands use 18 or 20 bags per roll, while dog waste station rolls may use much higher counts.
Does bag size affect roll diameter?
Yes. Bag size, thickness, bags per roll, paper core size and winding tightness all affect roll diameter.
What size dog waste bag fits a leash dispenser?
Many leash dispensers are designed for compact rolls using bags around 9 × 13 inches. The final roll diameter and roll height should still be tested before production.
Can dog waste bags be custom sized?
Yes. Brands can choose custom sizes for retail packs, premium products, handle bags, dog waste stations or special private label projects.
What size should private label dog waste bags use?
For most private label brands, 9 × 13 inches with 18–20 micron thickness is a practical starting point. The final choice should also consider roll diameter, dispenser fit, retail box size and sales channel.
Conclusion
Dog waste bag size is not only a flat measurement.
It affects the roll, the box, the dispenser, the carton and the customer experience.
For most retail and private label projects, 9 × 13 inches / 23 × 33 cm is a practical starting point.
But do not stop there.
Check thickness.
Check bags per roll.
Check roll diameter.
Check dispenser fit.
Check box size.
Check the final sample.
A good dog waste bag size decision should work in the customer’s hand and in the supply chain.
That is the goal.
