Aydın Tiryaki (2026)

Introduction: The Gap Between Regulation and Physical Reality While modern building codes in many countries specify a minimum balcony railing height of 110 cm, a significant portion of the global building stock—particularly older structures—still adheres to 90-100 cm standards. While regulations evolve over decades, the laws of physics and human anatomy remain constant. This article analyzes the life-threatening risks posed by 90 cm barriers and how this physical inadequacy creates a “grey area” for suspicious deaths, particularly in cases involving femicides, where “accidental falls” are frequently used as a legal alibi.

1. Center of Gravity (CoG) and the “Pivot Point” Hazard The physical possibility of a person falling over a barrier is determined by the relationship between the body’s Center of Gravity (CoG) and the height of the obstacle. In an average adult, the CoG is located just below the navel, within the pelvic region.

However, the use of footwear (averaging 3 cm in sole thickness) elevates this center further. For an individual 190 cm tall, the CoG reaches approximately 111 cm when wearing shoes. Under these conditions:

• The current 110 cm legal limit acts not as a protector but as a “pivot point” or turning axis. Even a minor loss of balance can cause the upper body’s momentum to carry the individual over the railing.
• Older 90 cm railings are even more catastrophic, sitting roughly 21 cm below the CoG, effectively acting as a “tripwire” that facilitates rather than prevents a fall.

2. The 90 cm Deficiency and the “Accidental Fall” Alibi In many regions, 90 cm railings remain common in older high-rise buildings. This height falls well below the waistline of an average adult. This physical deficiency creates a significant loophole in forensic investigations.

In the context of suspicious deaths—a recurring tragedy reported frequently on news channels—this low height provides a convenient refuge for perpetrators. When a barrier is only 90 cm high, a defense claim stating the victim “tripped, stumbled, and fell over” can appear physically “plausible” to a court of law. These inadequate barriers allow crimes to be masked as “accidents” or “negligence,” obstructing the path to justice.

3. Ending the Alibis: The 120 cm Threshold as Absolute Evidence Raising the safety threshold to a minimum of 115 cm, and ideally 120 cm, is not merely a technical update but a revolutionary step for judicial clarity. A 120 cm barrier reaches the level of the average person’s sternum (chest).

The critical importance of this height is as follows: If a structure implements the 120 cm standard, the “accidental fall” alibi becomes scientifically untenable. It is physically and mathematically impossible for an adult to accidentally tumble over a 120 cm barrier through a simple trip or stumble. In such an impact, the body is contained within the barrier rather than being launched over it.

For a fall to occur at this height, the individual must either intentionally climb the barrier or be subjected to significant external force (pushing or throwing). This standard effectively removes “accident” as a plausible explanation in judicial proceedings, particularly in suspicious deaths involving women, providing an unshakeable physical wall against fabricated alibis.

4. Global Perspectives: International Standards and Inadequacies A review of international building codes reveals a widespread reliance on “average” heights that fail to account for biomechanical extremes:

• United Kingdom: Minimum balcony height is 110 cm, but window sills can be as low as 80 cm.
• USA (IRC): Residential balcony railings can be as low as 36 inches (~91 cm), though commercial codes (IBC) require 42 inches (~107 cm).
• Australia: Requires a minimum of 100 cm for falls exceeding 1 meter.
• European Union (e.g., Germany – DIN 18065): Generally requires 90 cm for lower heights and 110 cm for buildings exceeding 12 meters.

Given that a 190 cm individual with shoes has a CoG of 111 cm, nearly all current global standards contain a inherent safety flaw. This reinforces the necessity of the proposed 120 cm universal standard.

5. Implementation and Retrofitting Solutions

• New Construction: Windows should be designed with a fixed lower section of laminated safety glass up to 120 cm, with the opening sash starting above this level.
• Existing Structures (Retrofitting): Older 90-110 cm balconies should be reinforced with additional profiles or glass panels to reach the 120 cm mark. For windows, ergonomic safety bars installed at the 120 cm height provide active protection and a point of stability.

Conclusion: Architectural Justice and the Right to Life A difference of 10-20 centimeters in architecture is the line between a life saved and a crime hidden behind an “accident” excuse. Standardizing the 120 cm threshold will leave no room for fabricated alibis in suspicious falling cases. Justice must begin at the architectural design phase; safe architecture is the ultimate social shield, eliminating the physical excuses behind which crime hides.

| aydintiryaki.org | YouTube | Aydın Tiryaki’nin Yazıları ve Videoları │Articles and Videos by Aydın Tiryaki | Bilgi Merkezi│Knowledge Hub  | ░ Balkonda 120 cm Eşiği │ The 115-120 cm Threshold in Balcony ░ 01.01.2026

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A Note on Methods and Tools: All observations, ideas, and solution proposals in this study are the author’s own. AI was utilized as an information source for researching and compiling relevant topics strictly based on the author’s inquiries, requests, and directions; additionally, it provided writing assistance during the drafting process. (The research-based compilation and English writing process of this text were supported by AI as a specialized assistan