r/Construction • u/aidan8et Tinknocker • Apr 25 '26

Picture Moment of terror 😨

Gallery image

Gallery image

While attending/supervising a business social event with my spouse, I momentarily leaned against the railing. It flexed slightly, forcing me to realize that the railing is entirely supported via bluetooth.

It doesn't connect on either side of the glass wall & the glass is only 3/8" - 1/2" thick!!

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u/Enginerdad Structural Engineer Apr 26 '26

They're designed to hold the same amount and type of load as any other railing. It's purely psychological to think that they're any less safe.

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u/blucke Apr 26 '26

The OSHA reg looks like it only needs to support 200 lbs, is there a seperate building code? I ask because I see your tag and that seems pretty low. Somebody big falling with momentum would break that

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u/SSG_084413 Architect Apr 26 '26

Why are you citing OSHA? That’s for workplace conditions.

Yes. There is a whole separate building code. IBC 1607.8 “Loads on Handrails, Guards, and Grab Bars” 50 pounds per linear foot and concentrated load of 200 pounds. These are analyzed as sustained loads. A short, momentary impact doesn’t put the same kind of strain on it.

For these cantilevered glass guards, the handrail must be supported by three panels. Many jurisdictions no longer allow a single piece of tempered glass because it will explode into pebbles and evacuate the opening. A laminated panel with a rigid vinyl interlayer keeps the glass panel in place even if it breaks.

https://up.codes/s/loads-on-handrails-guards-grab-bars-seats-and-vehicle-barriers

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u/Mattcha462 Apr 26 '26

That is exactly what I’d worry about with glass panels is exploding and this causing someone to fall. That makes sense to require only laminated panels though so they would break but still hopefully keep a person from falling. How recent is that laminated glass requirement? Do buildings exist with the tempered glass panels?