The first approach to achieving a strong durable struc ture involving economical use of materials is to follow a basic modular plan for layout and attachment of framing members.
2nd floor framing details.
All houses are engineered structurally and on a single floor home you wouldn t have nearly as much structure as you have on a multi.
With a second story you have to build it with larger lumber to support the second floor.
In balloon framing the studs extend as one from the sill to the top plate of the second story.
This type of construction is the most difficult but does provide unobstructed openings between the floors allowing for easy installation of utilities without notching.
The second story floor joists are supported by a ribbon board set into the studs.
Wood construction data 1.
Details for conventional wood frame construction.
In addition to larger lumber several items are needed to give the home more support when framing for the second floor.
How second floor walls are supported floor framing.
Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s.
Some newer homes have manufactured i beam shaped joists.
Framers construct the second story floor system to match the layout of the main floor system.
Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home.
Such methods use a 4 foot design module which governs a 16 inch spacing of joists.