“I’m hesitant about choosing a soundproof room size” “I don’t want to regret it being too narrow after buying it”
For those with such concerns. Choosing a soundproof room size is not just a matter of ‘spaciousness’, but is determined by the balance of three factors: purpose, budget, and installation space.
In this article, we provide a ‘map of size choice’ covering the characteristics of each major size and criteria for success.
Which is the Correct Answer? Three Success Criteria for Size Choice#
First, let’s diagnose which ‘spaciousness’ you should aim for with three points.
1. Choose by Instrument/Purpose#
- 0.8 to 1 Tatami: Video streaming, telework, vocals, violin.
- 1.5 Tatami: Upright piano, saxophone, flute, cello.
- 2 Tatami or more: Grand piano, multiple people, DTM, relaxed practice.
2. Choose by the Size of the Room to Install#
Soundproof rooms have ’external dimensions’. Even if the interior is 1.5 tatami, including the thickness of the walls, it occupies about 3 tatami mats worth of the room.
- 6-tatami room: 1.5 tatami is the limit (living space will be almost gone).
- 8-tatami room or more: 2 tatami or more can also be considered.
3. Choose by Budget#
- Up to $3,000: Simple soundproof room (around 0.8 tatami).
- Around $10,000: Standard for unit soundproof rooms (1.5 tatami class).
- $15,000 and more: Large/high-performance models (2 tatami and more).
Thorough Comparison Table of Major Sizes#
First, let’s check the overall picture.
| Size | Interior Dimensions | Actual Required Space | Price Range | Recommendation |
|---|---|---|---|---|
| 0.8 Tatami | Approx. 80×80cm | Approx. 1.2 Tatami | $600–$3,000 | ★★★☆☆ |
| 1 Tatami | Approx. 90×180cm | Approx. 1.8–2 Tatami | $8,000–$12,000 | ★★★☆☆ |
| 1.5 Tatami | Approx. 120×180cm | Approx. 2.5–3 Tatami | $9,800–$13,000 | ★★★★★ |
| 2 Tatami | Approx. 180×180cm | Approx. 3.5–4 Tatami | $13,000–$18,000 | ★★★★☆ |
| 3 Tatami+ | Custom | 5 Tatami or more | $25,000– | ★★☆☆☆ |
Detailed Guide for Each Size#
Let’s look closer at the size that fits your purpose.
1. [Extremely Small] 0.8 to 1 Tatami: For Streaming/Single Person Use#
A size for those who want to “keep it cheap” and “space-saving”.
2. [Standard] 1.5 Tatami: The Most Popular Golden Size#
The minimum size that an upright piano fits into, and chosen by the most instrumentalists. If you’re lost, this size is the basic.
3. [Spacious] 2 Tatami or More: Focus on Grand Piano/Comfort#
A size for professional/semi-pro levels who want to “enjoy the original resonance of the instrument” or “want a space where they won’t get tired even after a long time”.
Final Checklist Before Purchase#
Lastly, we have summarized the items you must check before signing a contract.
- Check Installation Space (External Dimensions): Is it the ’external dimensions’ from the catalog that fit in the room, not the interior dimensions?
- Measure Carry-in Route: Have you measured the width of the entrance, hallway, elevator, and doors?
- Floor Load Capacity: Is it okay to place a nearly 1-ton soundproof room on the 2nd floor of a wooden building? (Must check with the management company or construction company)
- Air Conditioning (AC): Is your heatstroke countermeasure for summer solid?
- Comparison with Used/Rental: Is buying a new one really the best choice?
Summary: Find Your ‘Correct Answer’#
A soundproof room is a once-in-a-lifetime big purchase. Once installed, the size cannot be changed (other than replacement).
- For mainly streaming or telework → 0.8 to 1 Tatami
- For upright piano or wind/string instruments → 1.5 Tatami
- For grand pianos or seeking the best resonance → 2 Tatami or more
We strongly recommend visiting a showroom first and actually going inside.
→ View Soundproof Room Price Guide in detail → Check Merits and Demerits of Soundproof Rooms