---
title: How to Sell Products in Multiples with a Quantity Step
description: Sell WooCommerce products in multiples such as 6, 12 or 18 with a quantity step.
url: "https://wpfactory.com/docs/woocommerce-quantity-step-increment/"
updated: "2026-09-27"
category: How to
---

# How to Sell Products in Multiples with a Quantity Step

A quantity step forces purchases to move in fixed increments, so customers buy in multiples such as 6, 12 or 18. This suits products packaged in fixed sizes. You set it in the Quantity Step section of the [Min Max Step Quantity Limits Manager for WooCommerce](https://wpfactory.com/item/product-quantity-for-woocommerce/), and the store-wide form is free.

![Quantity Step options in Quantity Manager, including the cart total step](https://wpfactory.com/wp-content/uploads/quantity-manager-quantity-step-options.png)

### Steps

1. Go to **WPFactory > Quantity Manager** (also reachable at **WooCommerce > Settings > Product Quantity**).
2. Open the **Quantity Step** section and tick **Quantity step** to enable it.
3. Set **Per Item Quantity Step Options > All products** (`wpfmmsq_step`) to your increment, for example `6`.
4. To also step the cart total, set **Cart Total Quantity Step Options > Cart total quantity** (`wpfmmsq_step_cart_total_quantity`).
5. Click **Save changes**.

**Important:** the step works with the minimum. A step of 6 with a minimum of 1 allows 1, 7, 13, and so on. For clean multiples (6, 12, 18) set both the step and the minimum to 6.

### Options reference

| Label | Option ID | Default | Free/Pro |
| --- | --- | --- | --- |
| Quantity step (enable) | `wpfmmsq_step_section_enabled` | No | Free |
| All products | `wpfmmsq_step` | 0 | Free |
| Cart total quantity step | `wpfmmsq_step_cart_total_quantity` | 0 | Free |
| Per product | `wpfmmsq_step_per_product_enabled` | No | Free |

### Get more control

The store-wide and per-product steps are free. [Min Max Step Quantity Limits Manager for WooCommerce](https://wpfactory.com/item/product-quantity-for-woocommerce/) Pro adds per-category and per-attribute steps, plus a low-stock exception. [See what Pro unlocks](https://wpfactory.com/item/product-quantity-for-woocommerce/).

Related articles

- [How to Sell Products Individually without Quantity Options](https://wpfactory.com/docs/individual-product-sale/)
- [How to Show Quantity Columns in the Products List](https://wpfactory.com/docs/woocommerce-admin-quantity-columns/)
- [How to Show Quantity Messages in Multiple Languages](https://wpfactory.com/docs/multilingual-setup-guide/)
- [How to Display Quantity Information on Product and Shop Pages](https://wpfactory.com/docs/minimum-quantity-display/)
- [How to Set a Default Quantity on Product Page Load](https://wpfactory.com/docs/default-quantity-onload/)