Shopify only allows you to store product weight, not dimensions—which can cause issues when calculating accurate shipping rates, especially with carriers that use cubic weight (also known as volumetric weight).
That’s where Pack to the Future comes in. Our app lets you easily add product dimensions in bulk to improve rate accuracy and packaging suggestions.
🚫 The Problem: Missing Dimensions in Shopify
When your products only have weight but no length, width, or height:
Shipping rates at checkout may be underestimated or overestimated
Carriers may charge you more based on cubic weight
Package fit suggestions may be inaccurate
You could be using larger mailers than necessary (costing you extra)
✅ The Solution: Add Dimensions in Pack to the Future
You can add or update product dimensions directly in the app:
To get started:
Go to Settings > Product Dimensions
You’ll see a list of your products, pulled from Shopify
Enter the Length (L), Width (W), and Height (H) for each product
Use the bulk editor to quickly apply sizes to multiple products at once
📝 Measurements can be entered in cm or mm, depending on your store settings.
🧠 Why It Matters
Many carriers charge based on whichever is greater: physical weight or cubic weight.
By adding dimensions, you:
Get more accurate shipping rates in your checkout
Let the app suggest better-fitting packaging
Avoid carrier surcharges or return-to-sender issues
💡 Tips
Use a tape measure or digital caliper for accuracy
If products vary slightly (e.g. clothing sizes), use the dimensions of the largest size
Don’t forget to update dimensions if your packaging or product changes
Still have questions? Hit the 💬 chat bubble or email us at [email protected] and we’ll help you get it sorted!