starbeanie wrote:Actually DIM WT or "Dimensional weight" has nothing to do with the weight the box can hold. Freight carriers utilize the greater of the actual weight or dimensional weight to calculate shipping charges. Dimensional Weight is calculated as (Length x Width x Height) / (Dimensional Factor).
Dimensional weight favors shippers of dense objects and penalizes those who ship lightweight boxes. A box of unpopped corn kernels will likely be charged by gross weight; a box of popcorn will probably be charged by its dimensional weight. This is because the large box of popcorn takes up a lot of space but does not fill up a vehicle's capacity in terms of weight, making it an inefficient use of space.
Shippers avoid dimensional weight charges by using smaller boxes, by compressing their goods, and by reducing the use of packing materials.
So S@H is penalizing themselves by not filling the boxes.
Bret
Your last statement assumes the position that everyone pays the exact same shipping rates aka LEGO is not getting a deal for shipping volume.
It's a tough call on whether or not they are penalizing themselves by not filling boxes to capacity. With so many different box sizes that need to be shipped, and in an almost infinite combination of ways to package them, even LEGO would be hard pressed not to find an across-the-board boxing solution. While it's no secret those boxes can hold more than the DIM WT, I think other factors have been looked at, such as how will the box be handled once it leaves the facility? If the box is overfilled and arrived damaged, there is replacement cost + customer service function, etc. I think by keeping the weight on the boxes low (and consistent) makes the flow of box traffic much more manageable. Not to mention what are Grandma, Mom, and sadly enough, some Dads going to do when UPS shows up with one 40lb box of LEGO, instead of 4 10 lb boxes? My only other thought is that the DIM WT on the boxes is more for the staff, and shipping company. Boxes with DIM WT = 10 are charged a certain rate, DIM WT = 14, another rate, and on down the line.
P.S. The gross weight rating on those DIM WT = 10 Boxes is 65lbs, but I've never been able to pack more than 25-30lbs without feeling risky. It's the fast fold flaps that appear to be the weak point.
Do something.