Free trailer inspection checklist
Free trailer inspection checklist (PDF-ready). Covers coupling, safety chains, lights, tyres, brakes, ramps and load restraint. Download free.
Updated 3 May 2026
Trailer Inspection Checklist
Pre-trip / periodic inspection: complete before use
Coupling & Connection
Tyres & Wheels
Brakes
Body & Structure
Lights & Electrics
Load Restraint
Inspector Sign-off
Signature
Print name
Date & time
Supervisor Acknowledgement
Signature
Print name
Date
How to use: download the PDF, print or complete digitally on any device.
- PDF format, ready to print or fill on screen
- Use as-is or customise to suit your operation
- Go digital in MapTrack for photos, reminders and audit trails
Two ways to use it
Use in MapTrack →Use it digitally instead
Unlimited usersThese same 27 checks, already built.
- Scan the asset’s QR tag with any phone
- Submitted forms can trigger alerts
- Photos on fails, audit-ready records
- Export responses, PDF reports with your logo
Free trial. No credit card needed.
Trusted by teams across Australia and New Zealand
We respect your privacy. Unsubscribe anytime.
These templates are free general guides provided as-is. They do not constitute legal, safety or compliance advice. You are responsible for ensuring any form meets your specific workplace obligations, industry standards and applicable regulations.
Don't just download it - use it live. Start a free workspace with this trailer inspection checklist already built, so your crew can run it from a phone.
Co-Founder & Commercial Director
Short answer
A trailer inspection checklist records a pre-trip check each time a trailer is coupled: coupling, safety chains, breakaway system, electrical plug, tyres, brakes, lights and load restraint, plus a deeper monthly or quarterly inspection. Drivers and fleet workshops complete it. Where the HVNL applies, section 89 prohibits using an unsafe heavy vehicle on a road, including trailers over 4.5 t ATM and combinations with one; inspection frequencies are common practice.
Checked against Model WHS Act (Model WHS Bill as at 5 December 2025 (includes the Model WHS Legislation Amendment (Incident Notification) 2025)) on by the MapTrack templates team. How we check templates
Key takeaways
- The MapTrack trailer inspection checklist contains 27 checks across 6 sections. Sections covered: Coupling & Connection, Tyres & Wheels, Brakes, Body & Structure, Lights & Electrics, Load Restraint.
- Inspect every trailer pre-trip each time it is coupled to a towing vehicle, and run a more detailed monthly or quarterly inspection covering chassis integrity, brake adjustment and wheel bearing condition. Annual roadworthy or engineering inspections sit on top.
- The pre-trip covers coupling and connection, safety chains (correctly rated and crossed), breakaway system, electrical plug, air lines, tyres and wheels, brakes, body and structure, lights and reflectors, and load restraint.
- Tyres must show minimum 1.5 mm tread depth in the principal grooves (across at least 75% of the width on heavy trailers) and correct pressures. Wheel nuts must be torqued or carry visible torque indicator markers. Couplings, safety chains and the breakaway system are the safety-critical items.
- Loads must be restrained to the loading performance standards explained in the Load Restraint Guide: total lashing capacity at least 80 percent of load weight forward, 50 percent rearward and 50 percent sideways. Tie-down points must show a visible rated capacity.
- Heavy trailers over 4.5 t ATM fall under the HVNL Chain of Responsibility duties in Chapter 1A. Loader, consignor and operator all carry duty. A signed inspection form is the evidence trail when an incident or audit lands.
Enter your email below to download this trailer inspection checklist as a ready-to-use PDF.
Used by construction, mining and field service teams
What is a trailer inspection checklist?
A trailer inspection checklist is a structured inspection form completed before a trailer is towed. It covers coupling and connection (coupling type, locking, safety chains, breakaway system, electrical and air line connections), tyres and wheels (condition, tread, pressures, wheel nuts, spare), brakes (override/electric/air operation, adjustment, park brake), body and structure (chassis/frame integrity, floor/deck, gates/sides/tailgate, ramps, tarpaulin), lights and electrics (tail lights, indicators, brake lights, clearance/marker lights, number plate light, reflectors), and load restraint (tie-down points, chains/straps, headboard). The completed form provides a documented record that the trailer was inspected and any defects reported before use.
Learn more about pre-start inspections in MapTrack.
Want each trailer's checks, services and latest position on one record? See GPS tracking for trailers.
Get the free template
Enter your email above to download the full trailer inspection checklist as a PDF.
Benefits of using this trailer inspection checklist
- Road safety: catch coupling, brake, tyre and light issues before the trailer enters traffic, reducing the risk of accidents.
- Legal compliance: demonstrate that trailers are inspected before use, supporting roadworthiness and Chain of Responsibility obligations.
- Load restraint confidence: confirm that tie-down points, chains/straps and headboard are in good condition before loading.
- Reduced downtime: early detection of tyre wear, brake issues, ramp faults and structural damage prevents costly roadside failures.
- Fleet visibility: a consistent inspection process across all trailers gives fleet managers visibility of trailer condition and recurring defects.
- Audit trail: a signed inspection form provides documented evidence for insurance claims, incident investigations and fleet audits.
Benefits of digitising forms in MapTrack
When you digitise trailer checklists in MapTrack, you get:
- Field users can easily scan a QR code to complete a form on mobile. Unlimited users.
- Email the right people when a form is submitted, with an automation you set up.
- File every completed form against the asset, location or person it covers.
- Download any completed form as a PDF, with failed answers listed at the top.
- Fill in forms offline; they upload when the device is back online.
- Build conditional logic (show or hide questions based on answers).
- Take pictures or attach photos. Not possible with a paper-based form.
- Electronic signatures.
- Edit forms later without reprinting.
- Set who can view, fill in or edit forms with user roles.
- Upload a paper form (PDF, Word, Excel or a photo) and MapTrack's AI builds a digital version for you to check.
- Make the pre-start form required when a machine is checked out to an operator.
- Record who did each pre-start and when, and where if you turn location capture on.
- Link each pre-start to the asset record for a complete inspection history.
Book a demo to see how MapTrack handles trailer checklists.
Try MapTrack free
Full access to every feature. No credit card required. Per-asset pricing so you scale as your fleet grows.
- No credit card required
1-2 days/week saved
“Bloody amazing! We used to spend 1-2 days a week tracking and managing our generators alone.”
Steve McAllister
Asset Coordinator, Saunders International
What to include in a trailer inspection checklist
This trailer inspection checklist covers 11 key areas:
- Trailer details: registration, type (box/flat/tipper/plant/tanker), make/model, fleet number.
- Inspector details: name, date, towing vehicle rego.
- Coupling and connection: coupling type (ball/pintle/fifth wheel), coupling secure and locked, safety chains (correct rating, secure, crossed), breakaway system, electrical plug, air lines (if air brakes).
- Tyres and wheels: tyre condition and tread, tyre pressures, wheel nuts torqued, spare tyre (if fitted).
- Brakes: brake operation (override/electric/air), brake adjustment, handbrake/park brake.
- Body and structure: chassis/frame (cracks, corrosion, damage), floor/deck, gates/sides/tailgate, ramps (condition, hinges, locking pins, anti-slip), tarpaulin/cover.
- Lights and electrics: tail lights, indicators, brake lights, clearance/marker lights, number plate light, reflectors.
- Load restraint: tie-down points (rating, condition), chains/straps (available, rated), headboard (if fitted).
- Overall result: Pass / Action Required / Fail.
- Defects table: defect description, action taken, rectified by.
- Inspector and supervisor sign-off: signature, name, date and time.
How to use this trailer inspection checklist
- Fill in the trailer details (registration, type, make/model, fleet number) and inspector details (name, date, towing vehicle rego) at the top of the form.: Record the trailer registration, trailer type (box, flat top, tipper, plant, tanker or other), make and model, fleet number and the date. Enter your name and the registration of the towing vehicle. This information links the inspection to a specific trailer and tow combination for compliance records and fleet reporting.
- Check the coupling and connections. Confirm the coupling is the correct type, is secure and locked, safety chains are crossed and rated, the breakaway system is functional, the electrical plug is connected and lights work, and air lines are connected if fitted.: Verify the coupling type (ball, pintle or fifth wheel) matches the towing vehicle. Confirm the coupling is fully engaged and the locking mechanism is secure. Check safety chains are crossed under the coupling, rated for the trailer GVM and free of excessive wear or corrosion. Test the breakaway system by pulling the lanyard to confirm the trailer brakes activate. Connect the electrical plug and walk to the rear to verify tail lights, indicators and brake lights illuminate correctly. For air-braked trailers, connect both air lines and check for audible leaks.
- Inspect tyres - condition, tread depth, pressures and wheel nuts. Check the spare tyre if fitted.: Check each tyre for tread depth (minimum 1.5 mm in the principal grooves, across at least 75% of the width on heavy trailers), cuts, bulges, sidewall damage and signs of uneven wear. Measure tyre pressures with a gauge and compare to the placard or manufacturer specification. Confirm all wheel nuts are tight using a torque wrench or by checking torque indicator markers. Inspect the spare tyre condition and inflation, and confirm it is securely mounted.
- Test brakes - confirm the override/electric/air brakes are operational, adjustment is correct and the park brake holds.: For electric brakes, apply the in-cab controller at various gain settings and confirm the trailer brakes engage progressively. For override (surge) brakes, check the actuator slides freely and the coupling is not seized. For air brakes, check for leaks at all connections and confirm air pressure holds when the engine is off. Engage the park brake and confirm the trailer holds stationary on level ground. Check brake adjustment by measuring free play at the adjuster or slack adjuster.
- Walk around the body and structure. Check the chassis/frame for cracks or corrosion, inspect the floor/deck, gates/sides/tailgate, ramps (condition, hinges, locking pins, anti-slip) and tarpaulin/cover.: Examine the chassis rails and cross-members for cracks, corrosion, weld failures or impact damage. Check the floor or deck for rot, corrosion or damage that could allow cargo to fall through. Open and close all gates, sides and the tailgate to confirm latches engage securely. Inspect ramps for hinge condition, locking pin engagement and anti-slip surface wear. If fitted, check the tarpaulin or cover for tears, UV degradation and that the tensioning system works.
- Check all lights - tail lights, indicators, brake lights, clearance/marker lights, number plate light and reflectors.: With the electrical plug connected, have a colleague or use a wall reflection to confirm both tail lights, both indicators (left and right), both brake lights and the number plate light are working. Check clearance and marker lights are functional and lenses are not cracked. Inspect all rear and side reflectors for damage or fading. Replace any blown globes or damaged lenses before towing.
- Verify load restraint - tie-down points are rated and in good condition, chains/straps are available, and the headboard is secure.: Inspect each tie-down point for cracks, deformation or corrosion and confirm the rated capacity is visible on the lashing ring or placard. Check that sufficient chains and ratchet straps are available and that webbing straps are free of cuts, fraying or UV damage. If a headboard is fitted, confirm it is securely bolted and not cracked. Verify the total lashing capacity meets the requirements of the Load Restraint Guide for the planned load.
- If any item fails, record it in the defects table with a description and action taken. Do not tow the trailer if defects affect safety until they are rectified.: Write a clear description of each defect, the immediate action taken (e.g. tyre replaced, globe changed, coupling greased) and who was notified. For safety-critical defects such as brake failure, coupling issues, missing safety chains or structural damage, the trailer must not be towed until repairs are completed and reinspected. Attach an out-of-service tag if the trailer is withdrawn from use.
- Select the overall result (Pass / Action Required / Fail), sign and date the form. Save or print a copy for the fleet records.: Mark the overall result based on the inspection findings. Sign and date the form, and obtain a supervisor countersignature if required by your site or fleet policy. File the completed form in the trailer logbook, upload to your fleet management system or submit digitally through MapTrack so the record is linked to the trailer asset for compliance tracking and fleet audits.
In MapTrack, you can run digital pre-starts attached to each asset. Each submission is stored as a timestamped PDF against the asset record.
Get the free templateEnter your email above to download the full trailer inspection checklist as a PDF.Back to download formHow often should you complete this checklist?
Trailers should receive a pre-trip inspection every time they are coupled to a towing vehicle. This quick check covers coupling, lights, tyres, brakes and load restraint - ensuring the trailer is safe before it leaves the yard. In addition, trailers should receive a more detailed monthly or quarterly inspection that covers chassis integrity, brake adjustment, wheel bearing condition, ramp mechanisms and structural welds. Many organisations also require an annual roadworthy or engineering inspection. If a trailer is used in demanding conditions (off-road, heavy payloads, frequent loading/unloading with ramps), increase the inspection frequency accordingly.
Try MapTrack free
Full access to every feature. No credit card required. Per-asset pricing so you scale as your fleet grows.
- No credit card required
Frequently asked questions
Applicable regulatory standards
This template is a starting point. Check the current requirements that apply to your equipment, work and location. The template alone does not establish compliance.
| Standard | Edition | Clauses this template relies on | Source |
|---|---|---|---|
| Model Work Health and Safety Act (Model Work Health and Safety Bill)The primary duty of care, which covers trailers used for work as plant, whatever their mass. | Model WHS Bill as at 5 December 2025 (includes the Model WHS Legislation Amendment (Incident Notification) 2025) |
| Safe Work Australia (drafted by the Parliamentary Counsel's Committee) |
| Heavy Vehicle National Law (Queensland)In participating jurisdictions, covers vehicles over 4.5 t GVM or ATM and combinations including one: vehicle standards, the unsafe vehicle offence and Chain of Responsibility duties. | Current as at 1 August 2026, incorporating the Heavy Vehicle National Law Amendment Act 2025 (Queensland) |
| Queensland Government (Office of the Queensland Parliamentary Counsel), administered by the National Heavy Vehicle Regulator |
| Heavy Vehicle (Vehicle Standards) National RegulationHeavy trailers only: tyre tread, braking and coupling standards the tyre, brake and coupling sections check against. | Current as at 1 August 2026 (Queensland Legislation reprint) |
| Queensland Government (Office of the Queensland Parliamentary Counsel), administered by the National Heavy Vehicle Regulator |
| National Heavy Vehicle Inspection ManualHeavy trailers only: the national in-service inspection and rejection criteria for trailers. | Version 3.2 (August 2026) |
| National Heavy Vehicle Regulator |
| Heavy Vehicle (Mass, Dimension and Loading) National RegulationHeavy vehicles only: the load restraint performance standards the load restraint section refers to. | Current as at 1 August 2026 (Queensland Legislation reprint) |
| Queensland Government (Office of the Queensland Parliamentary Counsel), administered by the National Heavy Vehicle Regulator |
| Load Restraint Guide 2025Information guide, not law, showing restraint methods that meet the performance standards; now published by the NHVR. | Load Restraint Guide 2025 (Edition 4) | Whole instrument | National Heavy Vehicle Regulator (earlier editions published by the National Transport Commission) |
Model Work Health and Safety Act (Model Work Health and Safety Bill)
Edition: Model WHS Bill as at 5 December 2025 (includes the Model WHS Legislation Amendment (Incident Notification) 2025)
The primary duty of care, which covers trailers used for work as plant, whatever their mass.
- s 19: Primary duty of care: a PCBU must ensure, so far as is reasonably practicable, the health and safety of workers and others, including safe plant, systems, training and supervision.
Safe Work Australia (drafted by the Parliamentary Counsel's Committee)
Heavy Vehicle National Law (Queensland)
Edition: Current as at 1 August 2026, incorporating the Heavy Vehicle National Law Amendment Act 2025 (Queensland)
In participating jurisdictions, covers vehicles over 4.5 t GVM or ATM and combinations including one: vehicle standards, the unsafe vehicle offence and Chain of Responsibility duties.
- s 6: Defines a heavy vehicle as a vehicle with a GVM or ATM over 4.5 tonnes, or a combination including one.
- s 60: A person must not use, or permit to be used, on a road a heavy vehicle that contravenes an applicable heavy vehicle standard.
- s 89: Safety requirement: a person must not use, or permit to be used, on a road a heavy vehicle that is unsafe.
- s 26C: Primary duty: each party in the chain must ensure, so far as is reasonably practicable, the safety of its transport activities.
Heavy Vehicle (Vehicle Standards) National Regulation
Edition: Current as at 1 August 2026 (Queensland Legislation reprint)
Heavy trailers only: tyre tread, braking and coupling standards the tyre, brake and coupling sections check against.
- Schedule 2, s 28: Tyre tread: at least 1.5 mm in all principal grooves, excluding wear indicators, across 75% of the normal road-contact width and the whole circumference.
- Schedule 2, Part 7: Braking system requirements for all heavy vehicles, heavy motor vehicles and heavy trailers.
- Schedule 3, Part 5: Mechanical connections between vehicles in combinations: couplings, kingpins, towbars and their load ratings.
National Heavy Vehicle Inspection Manual
Edition: Version 3.2 (August 2026)
Heavy trailers only: the national in-service inspection and rejection criteria for trailers.
- Section 14: Trailers: inspection criteria specific to heavy trailers.
- Heavy Trailer Inspection Checklist: NHVR checklist summarising the inspection items for heavy trailers.
Heavy Vehicle (Mass, Dimension and Loading) National Regulation
Edition: Current as at 1 August 2026 (Queensland Legislation reprint)
Heavy vehicles only: the load restraint performance standards the load restraint section refers to.
- Schedule 7: Loading performance standards: 0.8g forward, 0.5g rearward and lateral, and 0.2g vertical if friction or limited vertical displacement is relied on.
Load Restraint Guide 2025
Edition: Load Restraint Guide 2025 (Edition 4)
Information guide, not law, showing restraint methods that meet the performance standards; now published by the NHVR.
National Heavy Vehicle Regulator (earlier editions published by the National Transport Commission)
Each source was read at its publisher and the page checked on 26 October 2026. The publisher's current text is the authority.
Check the current source
Trailer inspection checklist preview
The numbers behind this trailer inspection checklist
The pages below gather the figures behind this kind of check. Each figure on them carries its source and date, so you can quote it in a toolbox talk, a budget case or a board paper without chasing the original report.
Get the free template
Enter your email above to download the full trailer inspection checklist as a PDF.
Embed this free template on your website
Run an industry blog, trade association site, or training resource? Drop a preview of this free trailer inspection checklist straight into your page. The snippet is self-contained, needs no scripts, and links readers back to the full free template.
<div style="max-width:480px;font-family:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;border:1px solid #E5E7EB;border-radius:12px;padding:20px;background:#ffffff;">
<p style="font-size:12px;font-weight:700;letter-spacing:0.05em;text-transform:uppercase;color:#071D49;margin:0;">Free template</p>
<p style="font-size:18px;font-weight:700;color:#071D49;margin:6px 0 0;">Trailer inspection checklist</p>
<ul style="margin:12px 0 0;padding-left:18px;color:#374151;font-size:14px;line-height:1.6;">
<li style="margin:4px 0;">Trailer details: registration, type (box/flat/tipper/plant/tanker), make/model, fleet number.</li>
<li style="margin:4px 0;">Inspector details: name, date, towing vehicle rego.</li>
<li style="margin:4px 0;">Coupling and connection: coupling type (ball/pintle/fifth wheel), coupling secure and locked, safety chains (correct rating, secure, crossed), breakaway system, electrical plug, air lines (if air brakes).</li>
<li style="margin:4px 0;">Tyres and wheels: tyre condition and tread, tyre pressures, wheel nuts torqued, spare tyre (if fitted).</li>
<li style="margin:4px 0;">Brakes: brake operation (override/electric/air), brake adjustment, handbrake/park brake.</li>
<li style="margin:4px 0;">Body and structure: chassis/frame (cracks, corrosion, damage), floor/deck, gates/sides/tailgate, ramps (condition, hinges, locking pins, anti-slip), tarpaulin/cover.</li>
</ul>
<p style="font-size:13px;color:#6B7280;margin:14px 0 0;padding-top:12px;border-top:1px solid #E5E7EB;">Free <a href="https://www.maptrack.com/templates/trailer-inspection-checklist" style="color:#071D49;font-weight:600;text-decoration:none;">Trailer inspection checklist</a> by MapTrack</p>
</div>Free to reuse, including commercially. This template is published under a Creative Commons Attribution 4.0 licence. Copy it, adapt it, put it on your own site or in your own docs. All we ask is that you credit MapTrack with a link back to this page. The snippet above already includes that credit, so if you use it as-is you’re covered.
Cite this template
Writing about this topic? You’re welcome to quote this checklist. Here’s the wording to use so your readers can find the original.
The MapTrack trailer inspection checklist contains 27 checks across 6 sections.
- Short attribution
- MapTrack Trailer inspection checklist, https://www.maptrack.com/templates/trailer-inspection-checklist
- Reference list
- MapTrack. (2026). Trailer inspection checklist [Checklist template]. Retrieved from https://www.maptrack.com/templates/trailer-inspection-checklist
Free to reuse with credit under a Creative Commons Attribution 4.0 licence. If you’d rather link straight to it, the page is https://www.maptrack.com/templates/trailer-inspection-checklist.
Need to run digital pre-starts attached to each asset?
Register every trailer in MapTrack, attach digital forms, and get a complete history of every inspection, service and compliance record.
Pre-start inspections · All templates · Pricing · Book a demo