Roof Framing Basics

For English speakers that are not familiar with the Imperial Measurement System:
The terms “two by four” or “two by six” are referring to a dimensional lumber with a thickness of two inches and a width of four or respectively six inches.
However this is the nominal designation.
The actual dimension of a “one by four” is ¾” x 3 ½”
The actual dimension of a “one by six” is ¾” x 5 ½”
The actual dimension of a “two by four” is 1 ½” x 3 ½”
The actual dimension of a “two by six” is 1 ½” x 5 ½”
The actual dimension of a “two by eight” is 1 ½” x 7 ¼”
The actual dimension of a “two by twelve” is 1 ½” x 11 ¼”

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[NewerSing]

your videos are great and informative, thank you! I am very happy to have found you channel, you are a great tutor!

[austrchi]

Great content is it suitable in Australia?

[triumfdula]

Can anyone give an answer, making a horizontal roof with 5 x 30 cm wood boards / joists (30 cm being vertically) would the boards in 5 meters length bend from it's own weight and snow ? And what is the max spacing allowed between boards, is 70 cm enough ?

[SageOneilPublishing]

please could you point me to a very good roofing book i would appreciate this

[MasreAtinafu-zxxv]

Constructing and Install Floor Frames, Planks and Sheets Plese send me video about this title