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Understanding Garage Door Opener Sizes
Garage door openers are often classified in terms of the motor’s horsepower, affecting its lifting capacity. Hence, you can encounter 1/3 HP, 1/2 HP, 3/4 HP, and 1 HP sizes. The sizing depends on the garage door’s type, insulation level, gauge, and insulation, among other factors.
Steps to Determine the Right Size Opener
Start by measuring the height and width of your garage door. The typical dimensions for standard residential garage doors are between 8-18 feet wide and 7-8 feet high. Record these dimensions as they will be needed to calculate the lifting capacity that your opener needs to have.
The weight of the garage door is an important factor when determining
what size opener you will need. You can find the door's weight in the manufacturer's specifications or by talking to a professional installer. Or you can estimate the weight with the door's size and material as follows:
- Single-layer steel doors: 8-10 pounds per linear foot
- Double-layer steel doors: 12-14 pounds per linear foot
- Wood doors : 9-12 pounds per square foot
Multiply the height and width of the door to calculate its square footage,
then times by the weight per square foot for an estimate of total door
weigh
Insulated garage doors and those made of heavier materials, such as wood or steel, require more lifting power than non-insulated or lightweight doors. When selecting the size of your opener, take into account the insulation level and material that your garage door is made from.
Consider how often you use your garage door and whether you have multiple vehicles or heavy objects inside. For those who use their garage
frequently or have a large, heavy door, opt for a higher horsepower opener to ensure enough lifting capacity and longevity.
Choosing the Right Size Opener
Depending on the solvent of calculations, and above considerations, here are rough guidelines to pick out suitable garage door openers:
Additional Considerations
