A comprehensive guide to measuring storage spaces and assessing their functionality—commonly overlooked during apartment viewings. Real estate experts explain how to measure closets, cupboards, and shoe storage, how to cross-check them with furniture and belongings you plan to bring, how to calculate storage capacity, and the hidden pitfalls of depth, height, and door types.

Reviewed by: Nobuyuki MoriPresident, M-Assets Co., Ltd. / Licensed Real Estate Transaction Specialist (Miyagi #018212)
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During apartment viewings, it's easy to focus on room size, natural light, and layout, but many tenants regret overlooking the functionality of storage spaces.
Common problems include:
Spending just 5–10 minutes checking storage spaces during a viewing can significantly reduce these mismatches.
What to bring to the viewing:
If a closet has a hanging rod, check the following:
Minimum depth requirements:
Height check:
Width calculation:
The type of closet door affects actual usability.
| Door type | Features | Notes |
|---|---|---|
| Bifold doors | Most common type | Corners are hard to reach |
| Sliding doors | No space needed to open/close | Hard to see the back since they don't open fully at once |
| Swing doors | Easy to use when fully open | Requires space in front for the door to swing |
With bifold doors, "dead space" in the corners is hard to access.
Cupboards are traditional storage spaces commonly found in Japanese-style rooms.
Typical cupboard dimensions:
One of the primary uses of a cupboard is storing bedding.
Standard large travel suitcase (28-inch) dimensions:
The lower section (height 80–90 cm) can usually accommodate a standing suitcase, but check if there are shelves in between.
Entryway shoe storage is also worth checking during viewings.
Standard shoe storage typically has a depth of 25–30 cm.
| Shoe size | Typical shoe length | Required shelf depth |
|---|---|---|
| Size 26 cm or smaller | Up to 27 cm | At least 25 cm |
| Size 27–28 cm | 28–29 cm | At least 30 cm |
| Size 29 cm or larger | 30 cm or larger | At least 32 cm |
People with larger shoe sizes often find standard shoe storage too small. Measure the shelf depth during your viewing.
General guideline (storage per shelf):
Check if the shelves and width can accommodate shoes for all residents.
Formula: Width (cm) × Depth (cm) × Height (cm) ÷ 1,000,000 = Volume (m³)
Guideline: A single-person household needs at least 1.5–2.0 m³ of storage
Before the viewing, list approximate sizes of items you plan to move—this makes it easier to assess storage fit.
Large items that need special attention:
If you feel storage is insufficient after the viewing, consider these options:
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