Standard 3PL pick-and-pack ops run on RF scanners in pallet-rack aisles with parcel-carrier outbound. The operational profile works cleanly for items under 70 lbs in standard dim profiles. Above 70 lbs or in oversized dimension territory, the workflow breaks: parcel carriers add the additional-handling surcharge, oversized surcharge, and dim-weight billing all stack against the same package, and at some point the carrier refuses the shipment outright.
Heavy-and-bulky is a separate discipline with different equipment, different floor zones, different carriers, and different cost math. Every Vertex node running heavy-and-bulky volume has dedicated zones with forklift access, ground-level pallet positions for items too heavy to rack, and inbound dock workflows tuned for pallet freight. The outbound side rate-shops heavy-parcel, LTL, and white-glove final-mile carriers depending on the dim/weight profile and destination.
This page walks the six heavy-and-bulky workflows we run, the four thresholds where this category applies, the operating principles, the dim/weight checker that recommends parcel vs LTL vs freight on the live shipment profile, the pricing structure including white-glove options, and the white-glove carrier partner panel. The honest answer is sometimes that parcel still works; the checker tells you when it does and when it does not.