This section outlines the cost of different materials, and whether they can be used when fulfilling orders with Airhouse.
This include basic cardboard boxes or mailers, tape, fill material, and packing slips. Our in-stock boxes come with different ECT (edge crush testing) ratings. 32 ECT boxes are the most versatile, economical and lightweight option, although we stock 200 ECT boxes, which are stronger, for transporting heavier goods.
When any order ships, shipping carriers account for the dimensions of packaging when calculating a shipping price. They look at both 1) the physical weight of the shipment, and 2) the shipment's length, width and height to produce a dimensional weight. You are billed for whichever is greater. Carriers measure dimensional weight using different formulas. Orders sent in larger polymailers in particular may bill at unexpected weights due to products settling in transit.
When fulfilling orders, packers will attempt to use the smallest packaging possible, and will generally use a similar size across your orders, although this is not guaranteed. If you require strict consistency for the size of packaging used across orders, Airhouse recommends providing branded mailers.
Please see our doc on Calculating Shipping Costs for more information on billable weight. If you have questions, please also reach out to your Account Manager.
The below chart shows the dimensional weights of Airhouse-provided packaging. Where blank (i.e. UPS SurePost and USPS), dimensional weight will not apply, and you will be billed at the physical weight. Where you see a weight listed, the shipment will bill at the greater of the listed weight and your shipment's actual weight. For example, a 1 lb shipment in a 12"x9"x7" box will bill at 4-6 lbs.
As noted on the chart above, box dimensions are measured based on internal dimensions of the box. At times, carriers may remeasure the external dimensions of the box and an additional inch could be added, which may then cause the shipment to exceed the volume threshold(s) outlined below. This would result in dimensional weight being billed by the carrier versus actual physical weight of the shipment.
Dimensional Weight by Box Size and Carrier