Short answer: long-distance high-speed services permit personal bags under a combined dimension of 160 cm to be stored in overhead racks or behind seats; items between 160 cm and 250 cm require a paid large-item reservation (typically ¥1,000) and must occupy a designated zone; items above 250 cm are usually refused.
On Shinkansen and major limited-express lines, standard carry-on suitcases that fit the 160 cm threshold are carried free and should be placed in overhead racks or the space behind the passenger seat. For items in the 160–250 cm range, purchase the large-item reservation at ticket counters, official websites or ticket machines before boarding and place the bag in the marked area behind reserved seats.
Commuter and local services have limited storage and crowded carriages during morning/evening rush. Use station coin lockers (availability and size vary widely), staffed left-luggage counters, or app-based locker reservations at major hubs. When lockers are full or a hands-free option is preferred, use door-to-door courier firms such as Kuroneko Yamato or Sagawa; typical fees range roughly ¥1,500–3,500 depending on size and route, with same-day or next-day delivery options between major points.
Quick checklist: measure total dimensions and weigh the case; buy a large-item reservation for Shinkansen when total size exceeds 160 cm; label the bag and stow it only in designated areas; avoid boarding crowded local services with oversized cases during peak periods; for transfers to hotels or airports, compare courier pricing versus carrying the case through multiple connections.
Oversized Suitcases on Japanese Railways: Practical Rules
Reserve a dedicated seat-space using the large-item reservation for suitcases whose total linear dimensions fall between 160 cm and 250 cm; items above 250 cm are typically refused on high‑speed services.
Size limits, required actions and typical fees
Combined dimensions (L+W+H) | Where | Action | Typical fee | Notes |
---|---|---|---|---|
≤ 160 cm | All regular and express services | Store in overhead rack, between feet, or in designated area | None | Keep aisles clear; avoid rush hours with large items |
160–250 cm | High‑speed lines (major Shinkansen routes) and some limited expresses | Make a large‑item reservation / reserved‑seat with designated storage | Approximately ¥1,000 per reservation (operator-dependent) | Space limited; online advance booking recommended |
> 250 cm | Most passenger services | Not accepted on regular passenger services | N/A | Use freight, courier, or special transport |
Practical recommendations
Book the large‑item reservation slot at ticket machines, ticket offices, or via the operator’s website when total dimensions fall into the 160–250 cm band; failure to reserve may result in denial of boarding on high‑speed services.
For trips on local commuter lines, avoid rush‑hour travel (morning and evening peaks) with bulky suitcases and prioritize off‑peak departure times; stations offer coin lockers (small/medium/large) – measure items before relying on locker availability.
Consider door‑to‑door parcel services (takkyubin) for oversized baggage or when mobility through stations is a concern; typical delivery time between cities is next day for most routes, with fees dependent on size and distance.
When uncertain about a specific route, check the rail operator’s official policy page or ask staff at the ticket counter; have suitcase dimensions (L×W×H) ready in centimeters and allow extra time at the station for handling requirements.
Maximum suitcase dimensions for JR and private rail services
Recommendation: Keep total linear dimensions (length + width + height) at or below 160 cm to ride JR shinkansen and most private rail services without special arrangements. Items with totals between 161 cm and 250 cm require advance reservation for a designated storage spot on major JR high-speed and limited-express services and commonly carry a modest fee (typically about ¥1,000 per seat). Cases whose combined dimensions exceed 250 cm are not permitted in passenger cars and must be dispatched by courier or freight.
Weight guidance: operators generally treat very heavy items (around 30–40 kg) as freight rather than carry-on. Confirm exact weight limits with the specific operator before travel; oversized or overweight pieces may be refused at boarding.
Private/local operator specifics: no single national standard exists for non-JR lines. Practical acceptance depends on car interior and door/aisle width: target a suitcase that fits overhead or between seats without protruding into the aisle. As a practical rule, aim for total linear dimensions ≤ 160 cm, height ≤ 100 cm, and one side ≤ 70 cm to ensure compatibility with most rolling-stock designs. If dimensions approach the upper range, reserve a seat with a designated storage area or use station coin lockers.
Station facilities and alternatives: many major stations offer large coin lockers (some accept items up to ~90–95 cm); for truly oversized pieces use door-to-door courier services (takkyubin). For compact gear consider compact accessories such as a best mini umbrella australia for saving space, and simple preparedness tips like marking tags or emergency items explained in how can a crayon save your life.
Final practical tip: measure length, width and height and add them up before departure; if total > 160 cm, check the specific operator’s oversized-item policy and book any required reservation well in advance.
Where to store large suitcases onboard: overhead racks, between seats, and designated storage zones
Prefer overhead racks for medium suitcases; place heavier pieces in designated zones and only use space between seats for slim items that do not block aisles or seat functions.
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Overhead racks
- Best for cabin-size and medium suitcases with low center of gravity – slide the case flat, wheels inward, handle fully retracted.
- Distribute weight evenly across the rack; do not stack more than one heavy case per section to avoid sagging or items falling when doors open.
- Secure loose straps and small items in a secondary bag so nothing drops into the aisle during acceleration or braking.
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Between seats / under seats
- Use for narrow or soft-sided bags only; position long axis parallel to the seatback to maximize legroom and avoid obstructing recline mechanisms.
- Check under-seat clearance before stowing – many seats offer only 20–30 cm vertical space; hard-shell suitcases often won’t fit.
- Avoid blocking the footwell of the passenger opposite; keep aisles, doorways and emergency equipment access clear at all times.
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Designated storage zones
- Available on many limited‑express and high‑speed services: end-of-car or dedicated racks marked for oversized items; use these for tall, heavy, or non-standard-shaped cases.
- Operators may require advance reservation for oversized pieces; check the carrier’s policy before travel and label the item with contact details.
- Use provided straps, nets or fixed fixtures to prevent shifting; if no restraints exist, place the case horizontally with wheels against a bulkhead and wedge a smaller bag to reduce movement.
Practical tips: keep valuables and travel documents in a small daypack kept at the seat; avoid placing hard cases in vestibule areas where they can block doors; if the service is crowded and no suitable space exists, store the case in station lockers or ask staff for alternative arrangements.
Do Shinkansen require advance reservation or additional measures for oversized bags?
Reserve a seat with a designated oversized-bag area when the total of length + width + height exceeds 160 cm and is 250 cm or less; items below 160 cm normally do not need prior booking.
Measure including wheels, handles and external pockets. The standard onboard limit is 250 cm total dimensions; items exceeding that figure are generally not accepted aboard and must move by freight or courier.
Book the oversized-space in advance via ticket machines, station ticket offices (Midori no Madoguchi), official JR online reservation portals or a travel agency. Allocation per service is limited, so secure a space as early as possible for peak travel dates.
Without a reserved oversized-space, onboard staff can refuse carriage of the item, ask to check it into station storage, or direct the passenger to forward it by courier; operator-specific rules vary, and small surcharges may apply on certain routes.
Use door-to-door courier services (takkyubin) or station oversized-item counters for pieces that approach the maximum or when reservation slots are full; coin lockers rarely fit items over standard cabin dimensions.
Arrive early at the platform to confirm placement with car attendants, attach a visible name/contact/destination tag, keep valuables with the passenger seat area, and avoid blocking aisles or emergency exits when positioning an oversized piece in the designated zone.
Alternatives if your bag is too large: takkyubin delivery, station lockers, and luggage storage services
Use takkyubin courier for oversized suitcases
Recommendation: send oversized suitcase via takkyubin (Yamato TA-Q-BIN, Sagawa, Japan Post Yu-Pack) to hotel, airport or a station counter rather than attempting to stow it onboard. Most couriers accept parcels sized by total dimension (height+width+depth): common size tiers 60/80/100/120/140/160 cm; maximum usually 160 cm and weight limit 25–30 kg.
Typical prices (domestic lines): 100-size ≈ ¥1,000–1,500; 120-size ≈ ¥1,200–2,000; 160-size ≈ ¥2,000–3,500 – exact fare depends on origin/destination. Standard delivery is next-day between major metro areas; same-day options exist within metropolitan zones if dropped off early (ask at counter for “same-day service”). Fill a sender slip with recipient name, destination address (include hotel name and check-in date if sending to accommodation), phone number; keep the tracking number. Declare high-value items separately for additional compensation.
Station lockers, manned storage and commercial drop-off
Coin lockers: small/medium/large rates typically ¥300/¥400–¥600/¥700–¥800 per 24 hours. Small fits A4 or daypack; medium fits suitcase ~60 cm; large fits suitcases up to ~80–90 cm. Jumbo lockers available at major hubs (limited quantity) cost around ¥1,000–1,200. Pay with coins, IC card or app at newer units. Overstay charges apply after 24–48 hours.
Manned baggage rooms or station-based storage: available at many major stations and airports. Fees for large items usually ¥500–¥1,200 per day; staff can accept oversized items that won’t fit coin lockers. Locate via station information desk or official rail operator signage; require ID and issuance of a claim ticket.
On-demand commercial services (Ecbo Cloak and similar): shop-front or kiosk storage booked via app or website. Rates range ¥300–¥1,200 per item per day depending on size and location; reservation recommended for weekends and tourist hotspots. These services accept items for a few hours up to several days and provide digital receipts/QR codes for pickup.
Practical tips: 1) Send items to hotel one or two days before scheduled arrival and confirm the hotel accepts parcel deliveries (some charge a handling fee). 2) Retain tracking number and take photos of external tags. 3) Keep passports, medication and valuables with hand baggage. 4) If departure is same day, drop parcel early morning to meet courier cutoffs or choose a same-day service at major city counters.
Boarding and stowing bulky items during peak hours on crowded local services
Avoid weekday peak windows (typically 07:00–09:30 and 17:00–19:30); wait for the next service or choose end cars when transporting an oversized case.
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Platform positioning: Arrive 3–5 minutes before departure and stand by the doors of the car that usually has more space (end cars often less packed than central cars). Marked boarding spots on the platform show door alignments; use them to target a car with vestibule space.
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Entry technique: Board when there is a small gap in the crowd. Carry the case upright on its wheels, wheels toward the carriage wall and handle retracted enough to keep overall width minimal. Move straight in and pivot the case into the nearest non-blocking niche; do not wedge it in the doorway.
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Stow locations inside cars:
- Overhead racks on local services accept only soft or compact bags–rigid cases must stay on the floor.
- Space near doorways or between facing seats sometimes fits a vertical case; place it against a pole or against the wall, keeping clearance for boarding/alighting.
- Never place a case in wheelchair/stroller areas unless that space is empty and the operator allows it; staff can direct to proper spots.
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Securing the case on crowded services: Loop a shoulder strap or a short luggage strap around a vertical pole to prevent tipping; keep one hand on the top handle while standing. Position the case so it does not obstruct the aisle or emergency exits.
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If the car is already full: Do not force a rigid case into the aisle. Step back onto the platform and board the following service. In urban networks, frequency is typically every 2–8 minutes during peak, making this the fastest safe option.
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Boarding discipline for quick exits: Move the case toward the door a stop or two before arrival, rotate it so wheels face the platform, and step out during the initial flow to avoid blocking other commuters.
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Etiquette and safety: Keep items off seats, avoid using priority seating areas, keep visible sightlines for drivers and staff, and never block emergency access panels or door sensors.
When carrying a bulky case in a packed carriage, the fastest way to avoid delays and conflict is to plan platform placement, target less crowded cars, stow vertically in designated niches, and disembark early to clear circulation space.
Rules and consequences: what staff may request if items block aisles or seats
Immediate compliance is required: onboard or station staff will demand that any obstructing item be moved at once to restore clear passage and access to seats and emergency exits.
Common directives include relocation to overhead racks, under-seat areas, a carriage’s designated baggage zone, or removal at the next station for temporary storage. On reserved-seat express services, staff may require purchase of an additional seat or reassignment to a car with a dedicated baggage space when available.
If relocation is impossible or the object creates a trip/evacuation hazard, staff may refuse continued travel until the obstruction is removed and may instruct the passenger to disembark at the next stop. Failure to obey staff instructions may result in ejection from the service.
When suspicion of hazardous contents exists (swollen batteries, strong fumes, leaking containers, visible damage, or unlabelled chemical packages), staff are authorized to request opening of the item for inspection, isolate the item, or summon railway security and local police. Transport of dangerous goods is prohibited and will prompt enforcement actions.
Operational consequences include incident reports and liability for cleaning, repair, or delay-related costs; in severe cases, administrative penalties or criminal charges under public-safety laws may follow. Repeated or serious violations can lead to a formal ban from the operator’s services.
If refusal escalates to aggressive behaviour, staff will document the incident (including video review when available) and involve law enforcement as needed to protect other passengers and railway operations.
Passengers should comply immediately, present ticket/reservation details on request, accept staff-arranged stowage or seat changes, or disembark and use station storage/courier options when removal is required by staff.