A lowbed trailer in Singapore is a trailer, not a lorry: a prime mover tows it. Low trailers are kept off expressways unless LTA grants a permit. A wide, tall or very heavy load needs an oversized vehicle movement permit or a police escort. The driver's licence class follows the prime mover's unladen weight.
This guide is for business owners who need to move an excavator, a machine or another heavy item and are searching for a lowbed truck in Singapore. It covers what a lowbed is, the expressway rule, permits and escorts, which licence you need, parking, and a worked example. One thing to know up front: ABLINK does not sell, lease or rent lowbed trailers. We list the towing units (the prime movers), and we explain below where they fit.
What is a lowbed trailer?
A lowbed is a trailer with a low deck, built so that tall, heavy items can ride on it without going over height limits. LTA's pages call it a low loader or a low trailer. On its heavy vehicle parking page, LTA groups "any trailer, container trailer, low loader or flat-bed trailer" together, and treats each one as a heavy vehicle when its maximum laden weight is more than 5,000kg.
Whether you search for a lowbed truck or a lowbed trailer, you need two things: the trailer, and a prime mover to pull it. The trailer carries the load. The prime mover carries nothing on its own body.
A typical reason to book one is a machine that cannot drive itself on the road. The LTA.PROMPT FAQ is clear: "vehicles without valid vehicle registration numbers cannot be self-driven on public roads". They must be carried on a registered vehicle (LTA names "low bed trailers" as the example) or towed by one. So an excavator without its own registration number goes on a lowbed, not on the road under its own power.
Can a lowbed trailer use the expressway?
Not by default. LTA's commercial vehicle rules list "Low trailers" among the vehicles "generally excluded from expressways, including expressway tunnels". Excavators, mobile cranes and road rollers are on the same list.
If your route has no way round, you can apply for a permit to use the expressway. Three points shape your timetable:
- Lead time. LTA says processing "may take about 14 working days", not counting weekends and public holidays. Book the move after the permit, not before.
- Peak hours still apply. Even with a permit, you may not use the expressway from 7.00am to 9.30am or from 5.00pm to 9.30pm, unless LTA grants special authorisation.
- Carry the letter. Keep the approval letter in the vehicle at all times, ready for LTA checks.
If the load is also oversized, the order matters. The LTA.PROMPT FAQ asks you to get the expressway approval first and only then apply for the oversized vehicle movement permit.
When does a lowbed load need an OVM permit or a police escort?
A lowbed keeps a load low, but it does not make a wide load narrow. LTA uses overall size and weight, laden or unladen, to decide when you need an oversized vehicle movement (OVM) permit, and when you also need an auxiliary police escort. These are the triggers on LTA's oversized heavy vehicle rules:
| Your lowbed combination | What LTA requires |
|---|---|
| Overall width over 3m (over 2.6m on controlled roads) | OVM permit |
| Load sticking out at the back by more than 1.8m, or by more than 40% of the vehicle length if that is shorter | OVM permit |
| Overall weight over the vehicle type's laden weight limit | OVM permit |
| Overall width over 3.4m | OVM permit and auxiliary police escort |
| Overall height over 4.5m | Auxiliary police escort (plus OVM permit if another limit is crossed) |
| Overall weight of 80,000kg or more | OVM permit and auxiliary police escort |
Timing is the other half. The LTA.PROMPT FAQ says an OVM application must go in "at least 3 working days before the intended date of travel". An application sent after noon counts as sent on the next working day.
Oversized moves without an escort may not travel from 7:30am to 9:30am or from 5pm to 7pm. Escorted moves run from 7pm to 5am on ordinary roads, and from 11pm to 5am on expressways.
Tunnels are tighter still. LTA does not allow vehicles higher than 4.5m, wider than 3m or longer than 13m in any tunnel. A vehicle wider than 3m may apply for an OVM permit to use a tunnel. A lowbed combination can pass the 13m mark, so measure the whole combination, prime mover included, before you plan a route through one.
Which licence do you need to tow a lowbed?
The driver's licence class depends on the prime mover, because that is the vehicle being driven. The Singapore Police Force driving licence class list treats a vehicle "not constructed to carry any load" differently from a lorry:
- Class 4 covers motor vehicles not constructed to carry any load whose unladen weight "does not exceed 7,250kg".
- Class 5 covers the same kind of vehicle above that line: "light locomotives" up to 11,500kg unladen and "heavy locomotives" above 11,500kg.
- Class 4P and Class 5P are the versions for vehicles without clutch pedals. A 4P or 5P holder cannot take a manual prime mover.
So the number to ask for is the prime mover's unladen weight on its log card. At 7,250kg or less, a Class 4 holder may drive it. Above that, the driver needs Class 5. The size of the trailer and the weight of the excavator on it do not change the class.
The SPF list says nothing about trailers, so if your setup is unusual, confirm with the Traffic Police before you hire a driver.
Our Class 5 licence guide covers how a driver moves up from Class 4. For load-carrying lorries, where the line sits at 2,500kg, see the Class 3 or Class 4 guide.
Does a lowbed trailer need a VPC?
Not at the moment. LTA announced on 5 February 2026 a two-year trial that drops the Vehicle Parking Certificate (VPC) rule for trailers. LTA names low loaders, flat-bed trailers and container trailers as covered. The trial began on 6 February 2026 and ends on 5 February 2028. During the trial, trailer owners do not need a VPC to register a trailer, renew its road tax or transfer it.
Two limits remain. First, the prime mover is a heavy vehicle, and LTA says heavy vehicles "are still required to have valid VPCs". Second, trailers still may not park in residential estates or on public roads not designated for parking. Our vehicle parking certificate guide explains how the VPC works for the towing unit.
Planning a lowbed move: a worked example
Say you need to move a tracked excavator with no registration number from one site to another. Loaded on the lowbed, the combination is 3.2m wide and 4.3m high. Here is how the rules above apply, in order:
- It has to ride. With no registration number, the excavator cannot drive itself on a public road, so a lowbed (or another registered vehicle) is required.
- Route first. Low trailers are excluded from expressways. If your route needs one, apply for the expressway permit first and allow about 14 working days.
- OVM permit. At 3.2m wide, the combination is over the 3m limit, so it needs an OVM permit through LTA.PROMPT, at least 3 working days ahead and before noon.
- No escort yet. It is under 3.4m wide and under 4.5m high. If it weighs less than 80,000kg, no auxiliary police escort is needed. If a different machine puts the combination over 4.5m, an escort is needed.
- Survey the route. The LTA.PROMPT FAQ requires a route survey by a qualified person before you apply. A written route survey report is required at 6m wide or more, and a Professional Engineer (Civil) report at 200,000kg or more, or an axle load over 12,000kg.
- Pick the travel time. Without an escort, avoid 7:30am to 9:30am and 5pm to 7pm. The combination is wider than 3m, so stay out of tunnels unless the OVM permit covers them.
- Check the driver. Read the prime mover's log card. At 7,250kg unladen or less, Class 4 is enough. Above that, Class 5. If the gearbox is manual, a 4P or 5P holder cannot drive it.
- Display the sign. The permit makes you show an oversized vehicle sign on the back of the vehicle.
If the job is a one-off, it can be simpler to hand it to an operator who already runs lowbeds and holds Class 5 drivers. If lowbed work will be regular, the prime mover becomes a fleet decision, and that is where we can help.
What ABLINK lists for lowbed work
ABLINK does not list lowbed trailers. A search for "lowbed" on our website returns no results, and our lease page covers lorries, pickup trucks and electric vehicles, not prime movers or trailers. The trailer itself has to come from a trailer supplier.
What we do list is the towing unit. On 25 October 2026, our catalogue showed two new prime movers:
- Isuzu EXR52H, with a 7-speed manual gearbox. The catalogue gives no unladen weight, so its licence class cannot be read from the listing. Ask for the log card figure. Our Isuzu EXR52H guide covers what it is built to haul.
- Mitsubishi Fuso FP70, with an automated manual gearbox. The catalogue lists an unladen weight of 6,840kg, marked as not yet verified. That figure sits under the 7,250kg line, but because it is not yet verified, check the registered figure on the log card before you decide between a Class 4 and a Class 5 driver. See our Fuso FP70 buyer's guide.
You can compare the Isuzu EXR52H and Mitsubishi FP70 side by side, or open the prime mover listings to view the latest price and ask what is available now. Tell us which trailer you will use and the heaviest load you plan to move, so we can match the unit to the job.
If the machine is light enough to lift, a crane truck may do the job without a trailer. Our catalogue lists two: the Isuzu CYZ52S and the Mitsubishi FV70HSK2VDEA. The crane truck buying guide explains when that fits. For the wider choice between rigid trucks and prime movers, see heavy trucks and prime movers and our construction vehicles guide.
FAQ
Can I drive an excavator to the next site instead of using a lowbed trailer?
Only if it has a valid vehicle registration number. LTA's FAQ says vehicles without one "cannot be self-driven on public roads". They have to ride on a registered vehicle, a low bed trailer for example, or be towed. Excavators also appear on LTA's expressway exclusion list. For a site machine without registration, the lowbed is the legal way to move it, with an OVM permit if the loaded combination is over 3m wide.
Do I need a police escort for every lowbed move?
No. According to LTA, an auxiliary police escort is needed only when the combination is over 3.4m wide, over 4.5m high, or weighs 80,000kg or more. Below those lines, you may still need an OVM permit, for example at over 3m wide. Escorted moves are limited to 7pm to 5am on ordinary roads and 11pm to 5am on expressways, so plan the crew and the site hours around that window.
Can a lowbed with an oversized load cross into Malaysia?
Not on the OVM permit alone. LTA's FAQ says an oversized vehicle also needs clearance from the Immigration & Checkpoints Authority (ICA) before it goes through the Tuas or Woodlands Checkpoint. The OVM permit also does not waive any other law or agency rule. Get the ICA clearance and the LTA permit lined up before you fix a date with the receiving site across the border.
Rules quoted here for moving a lowbed trailer are from LTA and the Singapore Police Force pages linked above, read on 25 October 2026. Permit conditions can change, so check the LTA page before each move. Vehicle specifications are from ABLINK's catalogue and are confirmed on the vehicle's log card; prices and availability are on the linked listing pages.
