A cross-country move stretches the lane, not the rulebook: the same small, medium and large boxes that ship a few states over still quote as ordinary parcels, they just cost more and take longer to get there. We quoted three sizes from Berkeley Heights, NJ to Los Angeles, CA on 2026-08-25, and the cheapest carrier was not the same one at every size.
These three sizes were packed the way a real move packs them, then quoted on one long lane on 2026-08-25.
Berkeley Heights, NJ 07922 to Los Angeles, CA 90001 is about as far as a domestic move gets without leaving the mainland. All three boxes below were quoted through the production checkout on 2026-08-25, and every price already carries SMKlog's charge alongside the carrier's.
| Box | Packed size | Cheapest rate | Service |
|---|---|---|---|
| Small book box | 16 × 12 × 12 in 28 lb, packed with books | $49.77 | UPS Ground Saver |
| Medium box | 18 × 18 × 16 in 25 lb, packed with kitchen items | $56.00 | UPS Ground |
| Large box | 18 × 18 × 24 in 35 lb, packed with bedding and pillows | $77.22 | UPS Ground |
Read those first two rows against the scale and they look backwards: the medium box weighs 25 lb against the small box's 28 lb, and still costs more. Bulk is doing that, not weight, and it also swapped which service came out cheapest. That is the pattern worth reading closely below.
Every service the calculator returned for the medium box, from cheapest to most expensive, on the same 2026-08-25 quote.
| Service | Price | Quoted transit |
|---|---|---|
| UPS Ground | $56.00 lowest | 6-7 business days |
| FedEx Ground Economy | $68.96 | 7-8 business days |
| UPS Ground Saver | $78.91 | 6 business days |
| FedEx Ground | $94.96 | 6-7 business days |
| UPS 3 Day Select | $97.59 | 5-6 business days |
UPS Ground Saver won on the light book box but slid to third place on the medium one, behind both UPS Ground and FedEx Ground Economy. Ground Saver is built for compact parcels, and the medium carton is the same 18 in square as the large one; once a box takes up that much space in a trailer, the standard ground service starts undercutting it no matter what the scale says. That is a genuine flip, not a rounding difference, and it repeated on the large box: UPS Ground held first place there too, at $77.22 against Ground Saver's $100.79. Quoting each box on its own is the only way to catch which side of that line a specific carton sits on, and a household move usually packs boxes on both sides of it.
An 18 x 18 x 24 in box at 35 lb is on the large end of the standard moving sizes, and it still came back with ordinary parcel rates on this lane rather than a freight referral. Go past roughly 24 x 24 x 24 in or 50 lb and that stops being true; oversize charges start eating the saving before the carrier declines the box outright.
Every ground service on this lane quoted 6 to 7-8 business days, noticeably longer than the same box moving a shorter, regional distance. Plan a coast-to-coast box shipment a full week ahead of when the contents are actually needed.
Because the cheapest service moves with the carton as much as with the load, the box you quoted half-packed is not the box you are shipping. Measure the sealed carton and weigh it, then quote that, rather than carrying the first answer over to a box that grew.
Pricing per box works cleanly for a handful of cartons, the overflow that does not fit in a car or the boxes sent ahead of a flight. Past roughly a room's worth of boxes, a rental truck or a moving container starts costing less per pound than paying for each carton as its own parcel, and once any single box crosses parcel-size limits, the honest next step is a freight quote from a person rather than guessing at an oversize surcharge. There is no shortcut number for where that crossover sits on your move; it depends on how many boxes there are and what a truck rental costs on your dates, so run the real quotes on both sides before committing.
Between $49.77 and $135.19 for the three boxes quoted on this page, Berkeley Heights, NJ to Los Angeles, CA, on 2026-08-25. The cheap end is a small book box on UPS Ground Saver; the expensive end is a large box on UPS 3 Day Select.
Yes, on this lane it flipped. UPS Ground Saver was the cheapest service for the small book box at 28 lb, but UPS Ground took over on the medium and large boxes even though the medium one weighed 25 lb, three pounds less. What moved the ranking was cubic size rather than scale weight: Ground Saver held its edge on the compact carton and lost it on the bulky ones.
It depends on how the two things bill. Movers and containers charge once for the space; parcels charge once per carton, and that cost climbs in a straight line, so the tenth box costs what the first one did. Boxes win for the overflow that will not fit in the car, and lose for a full household, where paying per carton overtakes paying for a load.
6 to 7-8 business days on the ground services quoted here, and 5-6 business days on UPS 3 Day Select, the one faster option we captured. A coast-to-coast ground box takes noticeably longer than the same box moving a few states over, so mail anything time-sensitive on its own.
This one did. An 18 x 18 x 24 in box at 35 lb still returned ordinary parcel rates on the Berkeley Heights to Los Angeles lane. Go bigger or heavier than that and a parcel carrier starts adding oversize charges or declining the box outright, which is where a freight quote takes over.