Whether the threshold counts tax and coupons is covered in Order value, taxes, and currency.
Offering free shipping once an order reaches a certain amount is one of the most effective ways to increase the average order value. Here is how to set it up with Weight Based Shipping, from a simple flat-rate setup to weight-aware variations.
Scenario A Flat rate below the threshold
The classic setup: charge a flat rate, and ship free once the order subtotal reaches $100.
Two rules split the price scale. The first matches orders valued $100.00 and over and charges nothing; the second matches orders under $100.00 and charges the flat rate. The free rule isn't decorative: with no matching rule at all, the method would disappear from the checkout instead of becoming free.
Example #1
Cart: Shirt ($70), Pants ($40).
Subtotal: $110.
Result: $110 ≥ $100, so shipping is free.
Example #2
Cart: Shirt ($70).
Subtotal: $70.
Result: $70 < $100, so shipping costs $5.00.
Scenario B Weight-based rates below the threshold
Below the threshold, shipping does not have to be flat. Here the regular price grows with the cart weight: each weight bracket carries the same under-$100.00 value condition, so the rates apply only below the threshold, and the free rule is the only match above it.
Example #1
Cart: $110 total, 7 kg.
Result: $110 ≥ $100, so shipping is free regardless of the weight.
Example #2
Cart: $80 total, 3 kg.
Result: $80 < $100, so the weight rates apply: 3 kg falls into the 2–5 kg range, $3.75.
Scenario C No free shipping for heavy orders
Free shipping on a big order can still be a loss if the order is heavy. To cap it, add a weight condition to the free shipping rule: conditions within a rule must all be met for the rule to apply, so orders valued $100.00 and over now ship free only when they weigh up to 10 kg. The paid rules cover the rest of the grid: any order under the amount, and heavy orders over it — $5.00 either way.
Example #1
Cart: $110 total, 8 kg.
Result: both conditions are met ($110 ≥ $100, 8 kg ≤ 10 kg), so shipping is free.
Example #2
Cart: $110 total, 15 kg.
Result: the weight condition fails (15 kg > 10 kg), so shipping costs $5.00 despite the order value.