WooCommerce has no setting for “customers must buy this in packs of 6” or “this only sells in pairs.” If you stock cases of bottled drinks, printed materials sold by the sheet set, fabric cut by fixed lengths, or anything else where a single unit doesn’t make sense to sell on its own, the default quantity field lets a shopper type any number they want. This post compares three real plugins that add a quantity step or “sell in multiples of” rule to WooCommerce, with what each one actually does, the real dashboard path to set it up, and an honest limitation for each.
Comparing the Plugins
| Plugin | Best for | Price | Last updated |
|---|---|---|---|
| Maximum, Minimum and Multiple Quantity for WooCommerce Shops | A simple global or per-product multiple, free, no upsell | Free | August 2026 |
| Min Max Step Quantity Limits Manager (WPFactory) | Decimal step quantities for fabric, rope, or anything sold by unit length | Free, Pro from $59.99/year | September 2026 |
| Min Max Quantities (Pluginever) | Custom error messages and a path to category-wide rules later | Free, Pro from $49/year | September 2026 |
Maximum, Minimum and Multiple Quantity for WooCommerce Shops
- Price: Free
- Requires: WordPress 5.9+, PHP 7.2+
- Last updated: August 2026
Maximum, Minimum and Multiple Quantity for WooCommerce Shops does exactly what the name says and nothing else. It adds a maximum, a minimum, and a “sell in multiples of” rule that can be set once for the whole store or overridden per product, and that’s the entire feature set. The plugin description puts it well: it’s the digital version of a grocery store sign that says “sold in packs of 3,” except there’s no sign, just a quantity field that refuses to accept anything else. It works on both simple and variable products, and guest checkout customers get the same restriction as logged-in ones.
Setup takes about two minutes. Go to WooCommerce, Settings, the Products tab, then click Inventory. Scroll down and you’ll find three fields: “Maximum quantity per product,” “Minimum quantity per product,” and “Sell in multiples of.” Set a global value there, or leave it blank and set it per product instead. On any product’s Edit screen, open the Product Data box, click the Inventory tab, and the same three fields appear, which always override the global setting.
The honest limitation is that it does only the one thing. There’s no way to customize the message a shopper sees if they try to type an invalid quantity, no category-level rules, and no cart-total conditions. If a size chart of extra features sounds appealing later, you’ll be switching plugins rather than upgrading this one, since it has no paid tier at all.
Min Max Step Quantity Limits Manager for WooCommerce
- Price: Free, Pro from $59.99/year
- Requires: WordPress 6.1+
- Last updated: September 2026
WPFactory’s Min Max Step Quantity Limits Manager for WooCommerce covers the same min/max/step ground as the others, but it’s built with a specific case in mind that neither of the other two plugins mentions: products sold by a non-integer unit. If you sell rope by the meter, fabric by the yard, or anything where “3.5” is a legitimate quantity, this is the plugin that handles decimal step values and fixed quantity options like “1, 3, or 5 meters only.” It also offers a dropdown selector as a replacement for the standard plus/minus stepper, and a “total price by quantity” display so the math is visible before checkout.
The free version covers the core rule: minimum, maximum, and step, set globally or per product, for both simple and variable products. Settings live under a dedicated WPFactory menu in the dashboard, specifically the Quantity Manager screen, which is also reachable through WooCommerce, Settings, under a Product Quantity tab. From there you can set the step value per product, and WPFactory’s own documentation walks through the exact case of “sell products in multiples with a quantity step increment” as a dedicated how-to.
The limitation shows up once you need rules by category or tag rather than per product, which the readme marks clearly as a Pro feature starting at $59.99 a year, or $199 as a one-time lifetime purchase for a single site. For a store selling one or two products by the meter, the free tier is plenty. For a store that wants the same decimal-step logic applied store-wide by category, budget for the upgrade.
Min Max Quantities
- Price: Free, Pro from $49/year
- Requires: WordPress 5.2+, PHP 7.4+
- Last updated: September 2026
Pluginever’s Min Max Quantities is the plugin to reach for if you want shoppers to actually understand why their quantity got rejected. Its free tier includes customizable error messages, something neither of the other two plugins in this comparison offers without a paid upgrade (WPFactory’s doesn’t offer it at all, as far as its readme documents). It calls the step feature “Quantity Steps/Quantity Groups” and keeps it in the free tier alongside per-product and global rules, min/max quantity limits, and order-level quantity minimums and maximums.
Settings sit under WooCommerce, then a dedicated Min Max Quantities menu, then the General tab. From there you set a Minimum Quantity and a Maximum Quantity, then optionally configure a Quantity Step: a step of 2 means only 2, 4, 6, 8, or 10 units are purchasable, with nothing in between. Save Changes applies it globally, and the plugin’s own documentation frames this as a three-minute setup for the first rule, with product-level, variation-level, and role-based overrides sitting on top of the global default.
The free version’s real ceiling is scope. Minimum and maximum order amounts, category-wide quantity rules, and role-based pricing-style rules are all marked Pro in the plugin description, with yearly pricing starting at $49 for a single site, $149 for up to five, or $299 for unlimited sites under an agency license. If you’re planning to apply step rules to a whole product category rather than configuring products one at a time, that’s the point where the free tier stops being enough.
How to Pick the Plugin That Lets You Sell WooCommerce Products in Multiples
- If you need one global or per-product “sell in multiples of X” rule and don’t want to pay for anything, use Maximum, Minimum and Multiple Quantity for WooCommerce Shops. It does one job and does it without an upsell screen.
- If your products are sold by a fractional unit like meters, yards, or weight, use Min Max Step Quantity Limits Manager from WPFactory. It’s the only one of the three built around decimal step values.
- If you want shoppers to see a clear explanation when their quantity gets rejected, or you expect to eventually need category-wide rules without migrating to a new plugin, use Min Max Quantities from Pluginever and budget for the Pro tier once you outgrow per-product setup.
None of these plugins fit cleanly into what ConicPlex builds as a packaged product, since a custom case-pack rule tied to your own inventory logic or ERP sync is closer to custom development than something a $49 plugin should attempt. If that’s the situation, our Plugin Development team builds it directly against your catalog instead of forcing a generic settings screen onto a non-generic problem.
Frequently Asked Questions
Does WooCommerce support selling in quantity multiples by default?
No. Out of the box, WooCommerce’s quantity field accepts any positive whole number starting at 1, with no built-in way to require multiples, a minimum step, or a fixed set of allowed quantities. All three plugins compared here exist specifically to fill that gap.
Can I set a different multiple for different products?
Yes, with all three plugins. Each one lets you set a global default and then override it on a per-product basis, so a store that sells both single units and case packs can run both rules side by side.
Will shoppers see an error message explaining why their quantity was rejected?
It depends on the plugin. Min Max Quantities from Pluginever includes customizable error messages in its free tier. The other two plugins in this comparison restrict the quantity input field itself rather than displaying a message explaining the rule.
Can I apply a quantity step to one category instead of the whole store?
Only with a paid tier. Category-wide rules are a Pro feature in both WPFactory’s and Pluginever’s plugins. None of the three offers free category-level step rules; the free tiers work at the global or per-product level only.
Do these plugins work with variable products that have sizes or colors?
Yes. All three explicitly support variable products and let you set quantity rules per variation, not just per simple product.
Sources
- Maximum, Minimum and Multiple Quantity for WooCommerce Shops – WordPress.org
- Min Max Step Quantity Limits Manager for WooCommerce – WordPress.org
- Min Max Step Quantity Limits Manager – WPFactory pricing
- Min Max Quantities – WordPress.org
- Min Max Quantities Pro – Pluginever pricing
- How to Set a Minimum and Maximum Order Quantity in WooCommerce
- How to Set a Minimum Order Amount in WooCommerce
