How do machine shops ship finished parts?

A skid of machined parts rarely looks like much — a compact block of steel or aluminum, stretch-wrapped, maybe knee-high. Then the forklift picks it up and the truck squats. That mismatch between size and weight is the defining problem of machine shop freight, and most of what follows — pallet choice, banding, vehicle, handling at delivery — flows from it.

Here is how shops that ship every week handle finished parts, from the bench to the customer’s receiving dock.

Machined parts are small-heavy freight

The core fact: machined metal concentrates a lot of weight on a small footprint. A half-skid of steel shafts or fixture plates can outweigh a full skid of packaged goods several times over. That changes three things about the shipment.

First, the pallet has to be rated for the load — an ordinary reused pallet with a cracked stringer fails under a forklift exactly when you least want it to. Second, the weight must be declared accurately, because the carrier assigns the vehicle and loading method based on it. Third, handling equipment at both ends matters more than usual: a dense load that a forklift lifts easily may exceed what a lift-gate platform safely handles, which is why dock-to-dock is the default for the heaviest skids and tailgate delivery is a deliberate booking choice, not an afterthought.

Build the skid around the weight, not the box count

A skid of finished parts should move as one rigid unit. The practices that get it there:

• Use a hardwood pallet in good condition, sized so nothing overhangs the deck. Overhanging steel gets caught, crushed and bent.
• Put the weight low and centred. Heavy billets and plates on the bottom, lighter finished assemblies above, and the centre of gravity as low as it will go.
• Band the parts to the deck, not just to each other. Steel or poly banding through the pallet anchors the load so it cannot slide when the truck brakes. Stretch wrap goes over the banding, not instead of it.
• Separate layers with dunnage. Plywood sheets, foam or corrugated between layers stop parts from rubbing and peening each other over an hour of road vibration.
• Cap or sleeve threads, bores and sealing faces. The features that took the longest to machine are the ones a shifting neighbour ruins first.

For dense one-piece items — mold bases, die sets, large fixtures — the logic shifts from stacking to anchoring, and it is worth reading how shops approach shipping injection molds, because the same rules apply to any single heavy block of tool steel.

Protect the finish, not just the part

A machined part can arrive structurally intact and still be rejected. Corrosion and contact damage are the two failure modes that packaging has to defeat:

• Corrosion: bare steel picks up surface rust from humidity alone. A film of rust preventative oil or VCI (vapour corrosion inhibitor) paper or bags is cheap insurance, especially on ground or polished surfaces.
• Contact damage: dings, scratches and burred edges from parts touching in transit. Individual wrapping, egg-crate foam, or simple corrugated dividers keep finished faces apart.

Tight-tolerance and cosmetic work earns a wooden crate. A crate costs more in time and material than wrap, but it turns the shipment into a box that can be handled normally without anyone needing to know what is inside.

Match the vehicle to the load

Machine shop shipments span a wide range, and the vehicle should track the freight rather than default to the biggest truck available. A single carton of small components rides in a minivan. A few hundred pounds of parts on a half skid suits a cargo van. Full skids and multi-skid orders go on a box truck with dock-height loading — at Sonic Transport, our 26-foot trucks carry up to 10,000 lbs and every one has a tailgate for locations without a dock. Beyond straight-truck payload, freight moves by semi, which a regional carrier arranges through transportation partners rather than turning away.

Most shops shipping weekly settle into skid and pallet service as the workhorse, with the occasional direct run when a customer’s line is waiting on parts. Our machine shop freight guide goes deeper on matching service levels to the rhythm of a job shop’s order book.

Direct delivery and the paperwork that closes the job

Finished parts usually ship against a PO, which makes the close-out as important as the transit. Direct courier delivery — one vehicle, your dock to theirs, no terminal in between — keeps handling to a minimum, and fewer touches means fewer chances for a bent edge or a lost carton. It also produces a clean paper trail: the packing slip and any required certs travel with the freight, and the signed proof of delivery documents who received it and when. That POD is what lets a shop invoice without a dispute about whether the parts arrived.

For shops whose customers are OEMs and larger manufacturers, delivery performance quietly becomes part of the vendor scorecard, which is why many treat their carrier as an extension of the shop — the case we lay out in our guide to choosing a manufacturing shipping partner in the GTA.

Getting a machined-parts shipment quoted

To price a shipment of finished parts, a carrier needs the loaded dimensions, the honest weight, whether both ends have a dock or forklift, and the deadline. Sonic Transport moves machined work across the GTA, Golden Horseshoe and Southern Ontario every week — skids and pallets are roughly 60% of what we do. Tell us what is shipping and a real person will put the right vehicle on it.