At CanadaWheels and USAWheels, our experience selling wheels, tires and automotive parts has made one principle clear: a promotion must work for both the product being sold and the destination it must reach. A fixed shipping allowance per order can conceal substantial differences.
Similar Orders Can Carry Different Costs
Weight and dimensions matter, but packaging and configuration also affect the bill. In our experience, boxed wheels can cost less to ship than similarly sized tires transported without boxes. Tire handling charges can add $5 to $20 per tire, sometimes appearing only on the carrier invoice. Across four tires, that is another $20 to $80.
An order fulfilled from multiple warehouses can also require separate shipments. The relevant figure is the full delivery expense, including handling, fuel and peak surcharges, less any shipping amount paid by the customer.
Discounts Change What Delivery Costs Are Affordable
During our 2025 BFCM promotions, manufacturer programs included offers as aggressive as buy three, get one free, combined with an additional retailer-funded 10% storewide discount. Across the promotional assortment, selected products offered customer savings of up to 40%.
Those offers did not have identical economics. Manufacturer funding can preserve margin on one product while a retailer absorbs more of the discount on another. Funding eligibility and reimbursement terms therefore belong in the calculation alongside the advertised price.
Consider an illustrative order with $160 remaining after product cost and discounts. An $80 delivery subsidy consumes half that amount. If a deeper retailer-funded discount leaves only $70, the same shipment produces a loss before payment fees, advertising or returns. Additional orders repeat that loss unless the economics change.
National Demand Changes the Destination Mix
During November 25 through December 1, 2025, USAWheels recorded 410% year-over-year growth in website users and 225% growth in orders against the equivalent Tuesday-through-Cyber-Monday period in 2024. That pace shows how quickly a promotion can increase pressure on fulfillment.
Having reached customers across all 48 contiguous states, we also see why national reach requires more than a national shipping average. Successful advertising can attract buyers far from available inventory. A campaign can achieve its sales target while shifting orders toward more expensive delivery zones.
Evaluate product and destination together. The same tire promotion may produce an acceptable contribution near a stocking warehouse and an inadequate one farther away. Review the availability and total delivery cost of alternative warehouses; the closest location is useful only if it can fulfill the order.
Choose Promotions Around the Margin That Remains
Before launch, model each SKU, brand or category using its promotional selling price, product cost, confirmed manufacturer support and expected delivery expense by zone. Include other variable costs and set a minimum contribution requirement. Avoid counting supplier funding twice if it is already reflected in product cost.
Arrange supplier support before committing to discounts, including which products qualify, when credits are paid and whether returns affect reimbursement. Where possible, align inventory availability with the regions targeted by advertising. A funded promotion still needs stock positioned where delivery costs leave enough margin.
Stress-test the plan against a shift toward distant customers or orders requiring multiple warehouses. An offer that works only at the historical average shipping cost has little protection if the campaign changes who buys.
Bulky products may need a smaller discount, a capped delivery subsidy or different eligibility rules. Higher-margin products may support a stronger offer. Any shipping limits should be clear before checkout. A uniform storewide percentage does not create a uniform financial outcome.
Use Delivery Data While Promotions Are Live
During the event, monitor product mix, destinations and estimated delivery costs daily. Where carrier invoices arrive later, reserve for expected surcharges and reconcile them promptly. Segment contribution by category and geography so profitable orders cannot hide losses elsewhere.
Give teams authority to adjust future offers and advertising support when actual costs exceed forecasts. For freight-sensitive retailers, promotional planning should begin with how much margin remains after the product reaches the customer.
Saleh Taebi is a Canadian technology entrepreneur and Founder and CEO ofCanadaWheels andUSAWheels, automotive e-commerce platforms serving Canada and the United States. With a background in electrical engineering, he focuses on fitment technology, supply-chain automation and customer experience. Under his leadership, the businesses have surpassed $100 million in combined lifetime sales and sold more than one million wheels and tires.
