Should I use 2x4 or 2x6 for roof?
Correspondingly, which is better 2x4 or 2x6?
2x6 walls are bigger than 2x4 walls. They're harder to lift and the headers on exterior walls require more work. Great builders add 2.5 inches of closed-cell foam to the headers over windows and doors to help cut down on energy bills.
Also Know, how far can you span a 2x4 Rafter? Max. Live Load 20 lbs/ft2 (956 N/m2)
|Maximum Span (ft - in)|
|Nominal Size (inches)||Rafter Spacing, Center to Center, OC (inches)||Lumber Grade|
|2 x 6||12||16' - 4''|
|16||14' - 11''|
Additionally, can I use 2x4 for porch roof?
Use treated 2x4 boards for rafters. Rafters are the supporting framework for a porch roof. They run perpendicular to the house.
Are homes built with 2x4 or 2x6?
Modern conventional home building normally makes use of 2x4 lumber (top line above, second from left) in constructing exterior walls. But 2x6 framing, which is a little more than 1.5 times wider, is a common upgrade and is required by some local building codes.