<p>Flat rate box shipping lets you define costs for boxes to different destinations. Items are packed into boxes based on item size and volume, and then that box uses the fixed costs you define per destination.</p>
<ul class="wccom-tick-list-primary">
<li>Add multiple box sizes per shipping zone.</li>
<li>Add costs per box, per weight unit, and a percentage of the item costs inside.</li>
<li>Define a cost for un-packable items e.g. too large to fit in a box.</li>
</ul>
<hr class="wccom-product-heading__hr" />
<h2>Advanced Shipping Rates using Box Packing</h2>
<p>When a customer checks out with items in their basket, the plugin reviews the destination of items, matches this to a zone, and then uses the rates in that zone for the calculation. Each destination and rate can have its own box sizes and multiple sets of box sizes, based on your shipping requirements. Items are packed into boxes to get a rate.</p>
<div id="gallery-3" class="gallery galleryid-0 gallery-columns-2 gallery-size-medium"><figure class="gallery-item">
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				<a href="https://woocommerce.com/wp-content/uploads/2013/04/screen-shot-2016-06-14-at-2-36-48-pm.webp"><img width="896" height="355" src="https://woocommerce.com/wp-content/uploads/2013/04/screen-shot-2016-06-14-at-2-36-48-pm.webp?w=896" class="attachment-medium size-medium" alt="" aria-describedby="gallery-3-18734002273912" loading="lazy" /></a>
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				<figcaption class="wp-caption-text gallery-caption" id="gallery-3-18734002273912">
				Add box sizes + costs to each zone
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			<div class="gallery-icon landscape">
				<a href="https://woocommerce.com/wp-content/uploads/2013/04/screen-shot-2016-06-14-at-2-39-30-pm.webp"><img width="896" height="559" src="https://woocommerce.com/wp-content/uploads/2013/04/screen-shot-2016-06-14-at-2-39-30-pm.webp?w=896" class="attachment-medium size-medium" alt="" aria-describedby="gallery-3-18734002273913" loading="lazy" /></a>
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				<figcaption class="wp-caption-text gallery-caption" id="gallery-3-18734002273913">
				Define box sizes and costs
				</figcaption></figure>
		</div>

<p> </p>
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<h2>Documentation</h2>
<p>Need guidance? Check out the comprehensive documentation to learn everything you need to know about the <strong>Flat Rate Box Shipping</strong> extension.</p>
<h4><a href="https://woocommerce.com/document/flat-rate-box-shipping" target="_blank" rel="noopener">View documentation</a></h4>
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<h2>Questions and Support</h2>
<p>If you have pre-sale questions or need help, <span class="link-annotation-unknown-block-id--992406005">get in touch</span> with our friendly Happiness Engineers.</p>
<h4><a href="https://woocommerce.com/my-account/create-a-ticket/" target="_blank" rel="noopener">Get support</a></h4>
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Flat Rate Box Shipping

<p>Pack items into boxes with pre-defined costs per destination</p>

<h2>Perfect for Helpdesk and Phone Orders: Calculate Shipping Costs Instantly</h2>
<p>Create or edit orders, add products, and add or change the shipping method.</p>
<ul class="wccom-tick-list-primary">
<li><strong>Recalculate shipping costs</strong> on the fly while <strong>editing admin orders</strong>.</li>
<li>Retrieve available shipping options <strong>with prices and taxes</strong>.</li>
<li><strong>Choose and assign</strong> the best shipping method.</li>
</ul>
<div style="height: 30px"></div>
<h2>Accurate Shipping Rates in the Admin — No More Manual Calculations</h2>
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<p>Get shipping costs <strong>calculated directly</strong> from your shipping methods:</p>
<ul class="wccom-tick-list-primary">
<li>Based on the <strong>products in the order</strong></li>
<li>Based on the <strong>customer’s shipping address</strong></li>
<li><strong>Compatible</strong> with most shipping plugins, from simple to advanced</li>
<li>Uses the <strong>same calculation logic as</strong> on the <strong>checkout</strong> page</li>
</ul>
</div>
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<p><a href="https://woocommerce.com/wp-content/uploads/2025/12/admin-order-shipping-cost-calculator-woocommerce.gif" target="_blank" rel="noopener"><img class="alignleft wp-image-18734006094427" src="https://woocommerce.com/wp-content/uploads/2025/12/admin-order-shipping-cost-calculator-woocommerce.gif?w=892" alt="Product with custom fields that affect shipping costs" width="400" height="247" /></a></p>
<p><small>Calculate and apply shipping rate in admin side. Click to enlarge</small></p>
</div>
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<h2>Support for Product Add-Ons</h2>
<p>Are you selling products with <strong>options that affect shipping cost calculations</strong>?</p>
<p>Do your product options or custom fields only appear on the front-end?</p>
<p>To address this case, this plugin loads the real front-end product page in a popup from the admin:</p>
<ul class="wccom-tick-list-primary">
<li><strong>Captures and stores product field values</strong> entered there</li>
<li>Reuses those values for <strong>current and future shipping recalculations</strong></li>
<li><strong>Compatible</strong> with most third-party, including WooCommerce Product Add-Ons and many others.</li>
</ul>
</div>
<div class="twocol-one last"><img class="alignnone wp-image-18734006094880 size-medium" src="https://woocommerce.com/wp-content/uploads/2025/12/admin-order-shipping-cost-product-fields_773708.png?w=400" alt="Product with custom fields that affect shipping costs" width="400" height="426" /></div>
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<h2>Support for Multiple Packages</h2>
<p>If your site already uses a plugin that splits the cart into multiple packages, this plugin fully supports it:</p>
<ul class="wccom-tick-list-primary">
<li>View shipping <strong>options and prices for each package</strong></li>
<li>Assign shipping rates per package</li>
<li>Works with <strong>all multi-package shipping plugins</strong></li>
</ul>
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<div class="twocol-one last"><img class="alignnone wp-image-18734006096243 size-medium" src="https://woocommerce.com/wp-content/uploads/2025/12/admin-order-shipping-cost-multiple-packages.png?w=400" alt="Multiple shipping packages with individual shipping methods in WooCommerce admin" width="400" height="435" /></div>
<h2>Support for Customer Roles</h2>
<p>Do you use different <strong>shipping rates based on customer role</strong> (for example, member, affiliate, or guest)?</p>
<ul class="wccom-tick-list-primary">
<li>If your shipping methods support different rates per customer role, <strong>this plugin does too</strong>.</li>
<li>The <strong>customer role is recreated during calculation</strong>, ensuring you always get the correct shipping price</li>
</ul>

Admin Order Shipping Cost Calculator

<p>Automatically calculates shipping costs for admin orders in WooCommerce when editing them, just like at checkout — ideal for helpdesk teams and phone orders.</p>

Flat Rate Box Shipping vs Admin Order Shipping Cost Calculator