Container shoring for Korean used cars involves securing vehicles with shoring (blocking) and lashing (straps) inside shipping containers. A 20ft container typically holds 1 car, a 40ft fits 2 cars, and a 40HC allows 3โ4 cars with racks, ensuring safe international transport.
UsedCarKorea.com
Shipping Korean used cars internationally requires precise container shoring for maximum safety and efficiency. Container shoring for Korean used cars ensures vehicles are properly blocked and lashed, preventing movement during transit. This guide explains the process and reveals how many cars fit in 20ft, 40ft, and 40HC containers.
Table of Contents

What Is Container Shoring (vs. Lashing)?
- Shoring: physical blocking/bracing (wheel chocks, wooden/steel blocks) to prevent rolling, sliding, or tipping.
- Lashing: ratchet straps/chains attached to container lashing rings to restrain the vehicle in all directions.
Done right, the car canโt move even under ship motionโprotecting suspensions, bodywork, and your claim if something goes wrong.
Primary benefits: cargo safety, carrier compliance, damage prevention, and better packing density when combined with engineered racks.
Container Sizes & How Many Cars Fit
| Container | Internal size (approx.) | Typical w/o racks | With professional racks* |
|---|---|---|---|
| 20ft (STD) | 5.9 m L ร 2.35 m W ร 2.39 m H | 1 sedan/SUV | 2 micro/kei cars (route & carrier dependent) |
| 40ft (STD) | 12.03 m L ร 2.35 m W ร 2.39 m H | 2 sedans/SUVs | 3 small cars, or 2 sedans + 1 compact |
| 40ft High Cube (HC) | 12.03 m L ร 2.35 m W ร 2.69 m H | 2 sedans/SUVs | 3 sedans common; 4 small; up to 5 kei with bespoke multi-deck |
* โProfessional racksโ = engineered double-deck systems (steel/ISPM-15 wood), certified lashings, and carrier approval.
Quick size references (typical KR cars):
- Kei/๊ฒฝ์ฐจ (e.g., Kia Ray, Morning): L โ 3.4โ3.6 m
- Compact/Midsize sedan (Avante/Elantra, K5): L โ 4.5โ4.9 m
- SUV (Tucson, Sorento): L โ 4.6โ5.0+ m, H โ 1.65โ1.75 m
Rule of thumb:
โข 20ft = 1 car (2 kei with certified rack only).
โข 40ft = 2 cars w/o racks; 3 small with racks.
โข 40HC = 3 sedans with racks; 4 small or 5 kei with bespoke multi-deck and strict compliance.
Step-by-Step Export Process in Korea
- Vehicle prep: basic mechanical check, remove loose items, exterior clean for photos.
- Safety: fuel โค ยผ tank (often โค 1/8), battery disconnected or isolator off.
- Documents (KR/EN):
- ์๋์ฐจ ์์ถ ๋ง์(๋๋ ๋ง์) ์ฆ๋ช ์ (Deregistration/Export Deregistration Certificate)
- ์๋์ฐจ ๋ฑ๋ก์ฆ(์์ถ์ฉ) / ํ๋งค๊ณ์ฝ์ / ์ธ๋ณด์ด์ค & ํจํน๋ฆฌ์คํธ (Export Certificate)
- ์์ถ์ ๊ณ (UNI-PASS) & ๋ณดํ์ฆ๊ถ (ํด์์ ํ)
- ์ ํ์ฆ๊ถ(B/L) after booking
- Book & stuff: reserve CFS slot near Busan / Incheon / Pyeongtaek-Dangjin; plan racks if needed.
- SOLAS VGM: submit Verified Gross Mass to the carrier.
- Gate-in: seal the container (record seal no.), deliver to port, receive B/L.
Professional Shoring & Lashing: Exact Sequence
- Pre-survey: VIN, odometer, panels; take photos from all sides.
- Floor prep: sweep dry; lay friction mats on tire paths.
- Positioning: drive in slowly; center the vehicle; target โฅ 10โ20 cm clearance on ends/sides.
- Wheel chocks: fix to sacrificial dunnage (never into container floor steel).
- Lashing setup (per car):
- 8โ10 ratchet straps total (2 per wheel + optional chassis straps).
- Strap angle 30โ60ยฐ to deck; cross-lash for lateral restraint.
- Attach only to container lashing rings; verify WLL (working load limit) on ring & strap.
- Racks (if multi-level):
- Build with ISPM-15 timber or engineered steel.
- Use rubber pads at contact points; load top car inch-by-inch; lash top car to rack and rack to container.
- Final checks: nothing touches doors/walls/roof; battery off; no leaks; photo every lashing; close & seal.
Capacity Planning Examples
20ft (STD)
- Without racks: 1 sedan/SUV.
- With racks: 2 kei possible only with certified systems and carrier approval.
40ft (STD)
- Without racks: 2 sedans (nose-to-tail).
- With racks: 3 small cars or 2 sedans + 1 compact (height becomes limiting factor).
40ft High Cube (HC)
- Without racks: 2 sedans/SUVs (headroom unused).
- With racks: common to load 3 sedans (2 bottom + 1 top). With small hatchbacks, 4 is feasible; with bespoke multi-deck, up to 5 kei in some lanes.
Why the 3rd car needs a rack in 40ft/40HC:
Floor length โ 12.03 m. Two midsize sedans at ~4.7 m each = 9.4 m used, leaving ~2.6 mโnot enough for a third car on the floor. Extra height in 40HC enables a top deck for car #3.
Materials, Tools & Specs (What Pros Use)
- Ratchet straps: 8โ10 per car; WLL โฅ 1,000 kg (or equivalent daN).
- Wheel chocks: hardwood/engineered; mount to dunnage.
- Friction mats: under tires; boosts static friction.
- ISPM-15 timber: required for export wood.
- Edge protectors: prevent strap abrasion at sharp edges.
- Tools: torque/impact driver, drill, tape/markers, ramp plates, level, headlamp, PPE.
- Docs kit: VIN list, photo log, load plan diagram, seal log, VGM sheet.
Compliance You Must Meet
- CTU Code (IMO/ILO/UNECE): load distribution; securing against longitudinal, lateral, and vertical forces.
- ISPM-15: heat-treated wood (stamped) for any export timber used in shoring/racks.
- SOLAS VGM: Verified Gross Mass submitted accurately and on time.
Carrier rules can be stricterโalways follow the stricter requirement between law and carrier policy.
Container vs Ro-Ro (Quick Decision Guide)
Container pros: protected from elements/theft, door-to-door, include parts/spares, consolidate multiple cars.
Ro-Ro pros: simpler handling, often cheaper per single unit, frequent sailings on some trades.
Choose container when: sending multiple cars together, adding spares, or lanes with limited Ro-Ro options.
Watch for: rack fabrication & stuffing labor, used-vehicle surcharges, carrier limitations on fuel/battery/racks.
Common Mistakes (and How to Avoid Them)
- Too few straps โ Use 8โ10 per car and cross-lash.
- Nailing into container floor steel โ Always into sacrificial wood, never the steel substrate.
- Ignoring height on 40STD โ Plan 40HC for 3+ cars.
- Skipping friction mats โ Cheap, big safety gain.
- Zero photo evidence โ Photograph every step (open/closed doors, seal number).
Final Takeaway
If you plan 2 cars or fewer, a 40ft works without racks. For 3+, choose a 40HC and a professional racking provider. Always prioritize CTU Code safety over squeezing in โone moreโ car.
Want this tailored to your actual car list (model & dimensions)? Share them and Iโll generate a precise loading plan with clearances, lashing points, and a printable checklist.

FAQs
How many Korean used cars fit in a 20ft container?
Standard practice: 1. 2 kei only with certified racks and carrier approval.
How many fit in a 40ft container?
Typically 2 sedans without racks; 3 small with racks (height-dependent).
How many fit in a 40HC?
Commonly 3 sedans with a two-tier rack; 4 small hatchbacks; up to 5 kei with bespoke multi-deck racks (subject to carrier rules).
Do I need to drain fuel?
No. Keep โค ยผ tank (often โค 1/8). Disconnect battery and follow carrier policy.
Which Korean ports are best?
Busan, Incheon, Pyeongtaek-Dangjinโchoose based on origin, sailing schedule, and destination.


