Before you pay for a crate, check whether the machine fits through the door

The number that decides it is the door, not the inside

Almost everyone compares their cargo against the interior height of a container, and the interior height is the wrong number. A 40ft high cube is 106 inches tall inside, but the doorway is 101.5 inches, and the doorway is what your machine has to pass through. That gap of four and a half inches is where a lot of freight gets wrongly declared out of gauge.

Load a machine lengthwise and the face you present to the door is its width by its height. The one in this case is 94 long by 52 wide by 98 high, so it goes to the door as 52 wide and 98 tall. Against a high cube door of 92 by 101.5 it fits, with about three and a half inches over its head and more than three feet either side.

Here is the same test against the boxes that actually run through South Florida. Door openings, not interiors:

The doorway, box by box

A 20ft standard opens 92 wide by 90 high, and a 40ft standard opens 92 by 89.5. Both are shorter than this machine, which is why anything close to nine feet tall gets quoted as out of gauge by reflex.

A 20ft high cube opens 92 by 101.75 and a 40ft high cube opens 92 by 101.5. Both take it. The 45ft high cube at 102 inches wide, common on the Caribbean and Latin America services out of Miami, opens 98 by 107, which turns three inches of clearance into nine and makes the whole job easier.

So the honest headline for a machine of this size is not that it must go in the open. It is that it fits through three of the six doorways in ordinary use here, and the ones it fits are not exotic equipment.

Weight was never the problem, and that matters

At 5,800 pounds this machine is light. A 20ft container is rated to a gross mass well over ten times that once you take the tare off, and nothing about the weight pushes it toward open deck equipment.

That is worth separating out, because out of gauge and overweight are two different problems that get quoted as if they were one. This was never a weight question. It was a four inch height question, and four inches is the kind of margin you confirm with a tape measure rather than argue about.

Where the flat rack quote comes from, and it is not unreasonable

The forwarder was not being lazy. The CTU Code, the international code of practice for packing containers, points at flat racks for exactly this class of cargo. Its words: because the lashing capacity of the securing points in general purpose freight containers is limited, such standard containers might not be appropriate for certain large and heavy cargo items, and platforms or flatracks could be used instead.

The numbers behind that are real. Lashing points in a dry container are rated at a maximum securing load of at least 10 kilonewtons at the bottom, sometimes 20 on newer boxes, and only 5 on the top side rails. A flat rack's lashing brackets start at 30 kilonewtons and are often 50. That is three to five times the holding power per point, and it is the actual engineering reason a heavy machine belongs on a flat rack.

The word doing the work in that sentence, though, is heavy. The Code is talking about granite blocks and machinery that runs into tens of tonnes. A 5,800 pound machine is not that, and the securing demand scales with the mass. The check is arithmetic, not opinion: transverse acceleration at sea, less whatever friction the flooring gives you, against the number of points and their rating. If the friction factor has not been established for the actual material contact, the Code caps what you may assume at 0.3, and tells you to use 75 percent of the static figure for direct lashing. Run it honestly and a light machine in a dry box is usually comfortable. Run it for a twenty tonne press and it is not.

Fitting through the door and getting it in there are different questions

Three and a half inches of headroom disappears fast. Put forklift tines under the machine and you have added four to six inches, and it no longer goes through the opening at all. It has to travel in low: on skates, on rollers, or winched in on a slide.

The CTU Code raises the same problem from the other end. It warns that a forklift lifting a heavy item inside a container can exceed the permissible concentrated load on the floor, and recommends open top, open side or platform units for heavy cargo precisely so that nobody has to drive into the box. A machine that fits dimensionally can still be one you cannot get in.

Two more things belong in the same conversation, because they are what a competent packer will ask about. The Code wants the combined centre of gravity within about five percent of the middle of the container, ten percent in particular circumstances, which for a single item means it does not simply go against the door. And where the load is concentrated rather than spread, it recommends transferring the weight to the corner posts on strong timber or steel beams rather than trusting the floor.

Note what just happened in that last sentence. The fix for concentrated loading is often timber, and timber brings the next section with it.

The cheapest lever is usually the machine, not the quote

Everything above treats the machine's height as fixed. On a machine tool it usually is not, and this is the part worth reading twice, because it is where the real money is. Six inches off the top can move a shipment from a flat rack with a crate and out of gauge handling to an ordinary box, and six inches is often sitting in the machine already.

The free one first. A travelling head, ram or knee parked at the top of its travel is carrying its own height for no reason. Run it to the bottom and you recover roughly the machine's axis travel, which is a number printed on its own spec sheet. To put a scale on it, a common mid size machining centre publishes a static height of about 86 inches and a maximum operational spindle head height of about 120 inches. That spread is the difference between fitting a standard box and not fitting a high cube. Nothing is dismantled, nothing is altered, and it reverses itself at the far end.

After that it is dismantling, and dismantling is normal. Removing a drive motor, a control cabinet, guarding or a table is ordinary knocked down export practice, and there is a trade that does it: millwrights, whose occupational definition is literally to install, dismantle, repair, reassemble and move machinery, working through rigging and machinery moving firms. This is not improvisation.

Two things we will not tell you to do. Leave the lifting eyes alone: they are the manufacturer's designated lift points, you need them at the far end, and they are almost never the dimension that is stopping you. And anything that crosses the machine's geometry, a head off a column, a spindle, a way system, is the manufacturer's territory and not a freight decision. Metrology machines, air bearing and hydrostatic machines belong in that group outright, because with the air or the oil off, the bearings are sitting on the ways.

Who takes the parts off changes who pays if it goes wrong

This is the paragraph almost nobody in freight will tell you, and it is worth more than any rate.

The standard cargo insurance clauses exclude loss caused by insufficiency or unsuitability of packing, or of preparation, of the goods to withstand the ordinary incidents of the transit. Preparation reaches dismantling: adjusting or removing mechanical parts to ready a machine for carriage is exactly what that word covers. So a partially stripped machine is squarely inside the subject matter of that exclusion.

Now the detail that decides it. The exclusion bites where the work was done by the assured or their employees, and the clause expressly says employees does not include independent contractors. Your own maintenance man taking the head off can put a later loss inside an exclusion. A contracted rigging firm doing the identical work does not, on the face of the clause. Same spanner, same bolts, different answer if the machine arrives damaged. The burden is on the insurer to prove the exclusion applies, but that is a fight you would rather not be in.

So if the machine is coming apart, use a rigging contractor and tell your broker it is being partially dismantled. That is not us being cautious on your behalf. It is the cheapest insurance decision on the whole shipment, and it costs nothing to get right in advance.

What it costs you at the other end, honestly

Dismantling is not free, and the page would be dishonest if it implied otherwise. What it costs is re-commissioning time, and it helps to know which part of that you were paying anyway.

Levelling is required after any move, dismantled or not. A manufacturer's own installation manual will tell you that levelling is what establishes the right angle geometry between the axes, and that getting it wrong shows up as out of round circles and bad interpolation. That work was always on the bill.

What dismantling adds is re alignment of the joint you opened. Take a head off and the spindle has to be squared to the table again, and on a CNC that may mean re verifying against the factory inspection report. It is real work by someone who knows how, and it is the honest cost against the freight saving.

Two commercial notes while you are deciding. Machine tool warranties routinely void published tolerances where the buyer dismantles the machine, so read your own certificate rather than assuming. And if you are selling the machine, dismantle after the buyer has inspected it and not before: once it is in pieces it cannot be demonstrated under power, and that closes a door you may want open.

The crate goes away. The wood rules do not

This is the part we got wrong on the first pass and it is worth stating plainly, because it is the trap in the whole idea. Moving a machine from a flat rack into a closed box removes the crate. It does not remove ISPM 15.

The United States regulation names the parts explicitly. Regulated wood packaging material includes dunnage, crating, pallets, packing blocks, drums, cases and skids. The blocking and bracing timber that holds your machine still inside the container is regulated wood packaging in its own right, and it needs the same heat treatment and the same stamp the crate would have needed. The CTU Code says the same thing and adds the sting: treatment has to happen before the wood is packed, and in situ treatment is not permitted. You cannot fix this at the terminal.

There is a clean way out, and it is the genuinely useful finding here. ISPM 15 exempts wood packaging made wholly of processed material such as plywood, particle board, oriented strand board or veneer, and the US regulation excludes manufactured wood materials from its definition. Block and brace with plywood or OSB, or secure with steel and synthetic webbing and dunnage bags instead of timber, and the phytosanitary obligation drops out of the shipment altogether. That is not a loophole. It is the standard saying that glued and heat pressed board does not carry the pests raw timber does.

If raw wood does go in, three details catch people. The wood has to be debarked, with only small pieces of bark allowed to remain. The mark carries four elements, the symbol, a country code, a producer code and the treatment code, and applying it removes the need for a separate phytosanitary certificate. And you cannot mark your own lumber: in the United States the treatment provider has to be enrolled with an agency accredited by the American Lumber Standard Committee under its agreement with APHIS. Grabbing a few 4x4s off the yard is not an option that exists.

What happens if the wood is wrong

At the border an inspector may order the immediate reexport of regulated wood packaging that arrives without the required mark. Read that carefully: the regulation says may order, not must, and inspectors also have detention, treatment and disposal available to them. Anyone who tells you non compliant wood is automatically turned around is overstating a real risk.

The penalty side is the part worth understanding, because of how it is measured. Customs may penalise a single violation, and the penalty may be assessed at the value of the article introduced, which includes the article and the wood packaging. In other words the exposure is scaled to the machine, not to the lumber. That is the whole argument for getting a few dollars of blocking right.

Verified gross mass applies either way, and a flat rack is a container

Every packed container needs a verified gross mass before it is loaded aboard, under the SOLAS convention, and the responsibility sits with the shipper named on the bill of lading. Not the forwarder, not the trucker. You.

The point people miss: for this purpose the term container includes flat racks. A quote that says break bulk service is using the phrase commercially, to mean out of gauge handling, and not in the sense that would take the cargo outside the rules. If your machine ships on a flat rack, it still needs a verified gross mass. True break bulk, cargo that goes aboard loose and not on any unit, is a different thing.

There are two accepted ways to get the number. Weigh the whole packed unit, or weigh every item including the pallets, dunnage and securing material and add the tare. Note what that second method means for this decision: a crate and its dunnage are part of the declared weight, so dropping them changes the figure you are certifying. Without a verified gross mass a container should not be loaded, and while the master and terminal may obtain one on the shipper's behalf, that is a favour with a cost attached rather than a plan.

What a closed box does not fix

It would be convenient to say that putting the machine inside solves the weather problem. It does not solve it, it changes it.

Sealed containers sweat. When warm moist air inside meets cargo that is still cold, water condenses on the cargo itself, and the CTU Code is blunt about who that hurts: it says the effect is particularly fatal on metal products and machinery, because corrosion starts immediately. Its recommendation for ferrous goods is a suitable coating or keeping the relative humidity below the corrosion threshold, which in practice means desiccants, a vapour corrosion inhibitor, or a sealed wrap combined with drying rather than any one of them alone.

So the honest comparison is not dry box good, open deck bad. It is rain and salt spray on one side against condensation on the other, with a different countermeasure for each.

The question almost nobody asks: is it going on deck?

This is the most valuable thing on this page and it rarely appears in a quote at all. Out of gauge units on flat racks are frequently stowed on deck, and deck stowage changes the legal regime the cargo travels under.

Under the United States carriage of goods statute, the definition of goods excludes cargo which by the contract of carriage is stated as being carried on deck and is so carried. Both halves have to be true, stated on the bill of lading and actually stowed there. When they are, the Act does not apply, and the carrier is free to set its own liability terms rather than being held to the statutory ones. A machine inside a dry container stowed below deck keeps the ordinary framework, including the provision that voids clauses relieving the carrier of liability.

The limitation of liability is calculated differently too. The statute caps liability per package, or for goods not shipped in packages, per customary freight unit. Whether a machine counts as a package can turn on whether it was crated, which is litigated often enough that nobody should predict the outcome. The reliable answer is the escape hatch the statute itself provides: declare the nature and value of the goods before shipment and have it inserted in the bill of lading.

On the insurance side, an all risks cargo policy has no deck exclusion, but the narrower named perils forms cover washing overboard precisely because deck cargo faces it. If you are moving to on deck carriage on a restricted policy, that is a conversation to have with your broker before the booking rather than after a claim.

Nothing in the rules says you must crate it

Worth saying plainly, because it is usually implied and never stated. There is no federal regulation and no international convention that requires a shipper to crate, tarp or wrap general cargo against the weather. The instruments that would carry such a rule deal with securing, weight and plant health, not with keeping your machine dry.

What actually drives it is two commercial realities. The carrier has a statutory defence for loss arising from insufficiency of packing, so a carrier accepting bare steel on an open flat rack knows where a wet damage claim will land, which is why tarping tends to appear in booking terms. And the standard cargo insurance clauses exclude loss caused by insufficiency or unsuitability of packing to withstand the ordinary incidents of the insured transit. On an open flat rack crossing an ocean, rain and salt spray are ordinary incidents.

One detail in those clauses deserves its own sentence, because it cuts against the comfortable assumption. The definition of packing expressly includes stowage in a container. Moving the machine inside does not put you outside that exclusion. Badly stowed inside a box is still insufficient packing.

There is a related phrase worth decoding, because it turns up in bookings and it sounds like law. If a quote says the cargo must be secured per NCB guidelines, that is the National Cargo Bureau, a non profit set up in 1952 to assist the Coast Guard. It is real and it is recognised: it is named in the federal regulations as a body that may approve a ship's cargo securing manual, and it issues grain and dangerous cargo certificates that may be accepted as evidence of compliance. But none of that reaches your machine. There is no NCB publication of securing guidelines at all; when their surveyors assess a lashing job they work to the IMO code and the CTU Code, which is somebody else's standard.

So per NCB guidelines in a booking is your carrier's contract term, not a legal requirement, and what it usually means in practice is that they will want a survey of the securing before they load. Behind it sits a real obligation, but it is on the ship rather than on you: the vessel has to secure cargo according to its own approved manual. Worth knowing because it is a cost and a date on the flat rack option that rarely appears in the quote, and because it is one more reason to check whether the machine can go in a box instead.

So shrink wrap or a tarp instead of a crate is a normal thing to do and often accepted. But there is no rule to be compliant with, which means acceptance is your carrier's and your underwriter's to give. Get it in writing before you book, rather than assuming it after.

The five ways this ends

Every machine lands in one of these, and it is worth knowing which before anyone quotes anything.

First ending, the head comes down and the motor comes off. The machine drops under the door by a comfortable margin, a forklift can handle it, and a skid underneath stops being fatal. Ordinary dry box, blocking in plywood so the wood rules do not follow you, no crate, no out of gauge. This is the cheapest ending and the one nobody checks for.

Second, it clears the door but only just. Three inches is a fit on paper. It rules out forklift tines completely, so the machine goes in on skates or rollers, and somebody has to be comfortable threading a machine tool through an opening with very little room around it. A reasonable person can look at that margin and still choose the open deck, and that is not a wrong answer.

Third, a skid is unavoidable and it pushes the machine past the door. The high cube dies here. What survives is the wider 45ft box, whose door is nine inches taller, where the trade lane offers one. This is the ending that turns on which services actually call at your port rather than on anything about the machine.

Fourth, open top, which looks like the answer and is not. People reach for it because it loads from above. But its interior height is lower than a high cube's door, so a tall machine stands proud of the frame, the tarp will not close, and you are out of gauge anyway. You have taken on a top lift and kept every disadvantage. Open top solves length and shape problems, not height ones.

Fifth, the flat rack, which is a legitimate ending and not a failure. For plenty of machines it is simply correct, and it is gentler on them: the load is lifted straight down onto an open deck with nothing to squeeze past. Then the crate or the wrapping is buying real protection, the securing survey is a cost you can plan for, and the questions that matter are weather protection agreed in writing, whether the unit goes on deck, and the verified gross mass you owe either way.

The order to do this in

Measure the machine as it will actually travel, including the skid or pallet it sits on and anything that will be bolted underneath it for the voyage. The height that matters is the one at the moment it goes through the doorway, not the one on the datasheet.

Compare that face against door openings rather than interiors, and against the boxes that actually call at your port rather than a generic table. Then ask how it gets in, because the loading method can cost you the clearance you just proved you had.

If it goes in a box, settle the securing before the wood is bought, so that plywood or steel is chosen deliberately rather than raw timber by default. If it goes on a flat rack, get the weather protection agreed in writing with the carrier and the underwriter, and ask whether the unit will be stowed on deck.

Either way, someone has to produce a verified gross mass, and that someone is the shipper on the bill of lading. Send us the dimensions, the weight, the port and the destination, and we will tell you which of these it is before anybody orders a crate.