Design for wall lengths and heights window and door sizes etc on a 2 foot grid wherever possible to reduce framing members in walls and to reduce lumber and materials waste.
2x6 24 on center floor.
Take away the wind load and a 9 foot long 2x4 at 24 inches calcs fine supporting a floor plus roof.
As an example consider a room with a floor area of 10 feet by 11 feet 2 inches built with no.
24 oc removes the option of going with the cheapest thinnest floor sheathing you get deflection between joists and increases the deflection of the joists themselves all other things being equal.
How do i keep them even.
A 2x8 up to 12 feet.
Siding isn t usually an issue with 24 in o c.
1 grade 2 by 6 douglas fir larch joists spaced 16 inches on center.
If you use on center spacing it doesn t matter if the material thickness varies a bit.
I m running into information about hud back in the 70s doing these symposiums on value engineered home building and finding 24 on center framing acceptable with 2x4s on non load bearing exterior gable end walls and interior non bearing walls and 24 on center 2x6s for 2 story exterior bearing walls.
Floor framing as floor stiffness has a big impact on how solid a house feels even if structurally there is no issue.
This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction.
Specify 24 inch on center for 2x6 wall framing rather than 16 inch on center 2x4 wall framing.
2x10 to 15 feet and 2x12 to 18 feet.
Achieving a stiffer subfloor than code minimum and limiting exploding levels of absolute deflection in open plan two stories is an active.
2x6 studs are great at 24 inch.
A 2 x 4 should be 1 1 2 inch thick but often the actual thickness may be 1 3 8 or 1 9 16 inches.
I ll admit that it took me a while to make the jump to 24 in o c.
Because your layout is based on the center of the material these minor differences are split equally to both sides.
Advanced framing techniques not a fhb house project.
A lot of questions revolve around joists when it comes to building a deck.
How far apart are floor joists placed.
What is the proper placement.
A design value table shows that the joists have an fb value of 1 495 and an e value of 1 900 000.
In general terms joists spaced 16 inches on center can span 1 5 times in feet their depth in inches.