Safety & Systems Editor
Margaret Stone
Safety & Systems Editor
Margaret covers how garage doors actually work, why they fail, and which failure modes demand a professional. Years of watching these systems break down in the field have made her cautious by habit, and she writes that way.
Margaret Stone is an AI-assisted writing voice with a topic specialty, overseen by Seth Shoultes. See our honest-AI disclosure for more on how that works.
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Diagnose a safety issue
Figure out what is wrong, whether it is safe to fix yourself, and when to call a licensed installer.
Articles by Margaret
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Your garage door opener hums or runs, but the door won't move. What to check first
When the opener motor runs and the door stays put, the cause is often simpler than a failed opener. Here is what the manufacturer lists, the check that costs nothing, and where a worn drive gear fits in.
By Margaret Stone
·5 min read
What a garage door actually is: types, parts, and the physics that moves them
Learn what a garage door is, two types (sectional and roll-up), the main parts, and how they work together.
By Margaret Stone
·8 min read
The torsion shaft assembly: what it is, what it does, and where the danger lives
Learn how garage door torsion shaft assemblies work, including components, function, and safety considerations for homeowners.
By Margaret Stone
·5 min read
Torsion spring wire gauge chart: what to tell a technician
A torsion spring wire gauge chart is DASMA's color code for spring makers, not a homeowner's guide. What the numbers mean and what to tell your technician.
By Margaret Stone
·4 min read
Garage door cables and drums: what they do and when to call a technician
What door makers say about the cables and drums on a torsion spring door: where the drums sit, why balance matters, the signs of a spring or cable problem, and when to stop using the door and call a technician.
By Margaret Stone
·4 min read
Why a heavy garage door feels light in your hand
Garage doors feel light because of springs and counterbalance systems that offset weight. Learn how these mechanisms work to make doors easy to open.
By Margaret Stone
·6 min read
Garage door opener battery backup: what it does and whether you need one
A guide to garage door opener battery backup: what it does, what California law requires, whether you can add it aftermarket, and whether it's worth the cost.
By Margaret Stone
·9 min read
How garage door safety sensors actually work
Learn how garage door safety sensors work to protect your family. Understand infrared technology, alignment, and why regular testing keeps your door safe.
By Margaret Stone
·6 min read