How to Frame a Garage Door Opening

How to frame a garage doors opening - in this case 9ft wide by 8ft tall. How to measure the finished width and height, use of 2x4s for the sides and header, and 2x6 for mounting the spring and garage door opener.
Mount Garage Doors, Inc.
Westminster, MD 21157.
Tel: [phone]
Toll Free: 1-877-MT-DOORS (1-877-683 6677)
Fax: [phone]
www.MountGarageDoors.com
Serving Carroll, Frederick, Howard and Baltimore Counties.
Commercial -- Residential -- Gate Openers -- Service & Repair
3 Year Labor Warranties
MHIC #51659
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