What size garage door opener do I need? (installed, car garage, aluminum) - House -remodeling, decorating, construction, energy use, kitchen, bathroom, bedroom, building, rooms - City-Data Forum

forcedfx · 06-12-2009, 10:45 AM

Hello all. I have a two car garage with one single aluminum garage door. I'm looking at Chamberlain belt driven openers and want to get the 1/2hp opener. Is there any reason to go with the 3/4hp model? The door is balanced as far as weight goes so I would expect 1/2hp to be plenty of umph.

Houston3 · 06-12-2009, 10:55 AM

I may tell you on the box it comes in...I think they go by the weight of the door.

Bydand · 06-12-2009, 12:24 PM

1/2 HP is plenty. I have installed 1/2HP openers on HUGE commercial overhead doors (22' wide 28' tall). It all is in how well balanced the door is. 1/2Hp is fine for every single residential garage door I have ever seen. (installed thousands of doors and openers for a living over the course of many years)