I'm trying to add a "Built Dimensions" fields to each product variation settings. Here's a mock of what I'm trying to accomplish: I've followed these following tips but they aren't doing quite what I want: http://www.remicorson.com/mastering-woocommerce-products-custom-fields/ Add Advanced Custom Fields to WooCommerce Product Variation Those are adding it to one of the other data tabs. I need it per variation. Each variation has a built dimension and a shipping dimension.

Add custom dimension fields to each variation settings for variable products

I'm trying to add a "Built Dimensions" fields to each product variation settings.

Here's a mock of what I'm trying to accomplish:

I've followed these following tips but they aren't doing quite what I want:

Those are adding it to one of the other data tabs. I need it per variation. Each variation has a built dimension and a shipping dimension.