2nd Floor Joist Buildup

I have a 20 x 40 x 18 ft rv building basically 800sq ft which i want to add a second floor.

2nd floor joist buildup. If you hook your tape measure on the sill plate that runs parallel to the joist layout then you will find 16 on the tape measure and subtract half the thickness of the joist to mark the edge of the floor joist. Start at one corner of the foundation and layout the joists 16 o c. Maximum floor joist span for no. Framing for floor openings a staircase is essential for commuting between floors but it creates an opening in the second floor so you can t run the joists from one side of the house to the other without interruption.

As well as human traffic. This article will assume 16 o c. Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s. Use a tape measure to measure 16 inches 41 cm in from the edge of the rim joist and draw a small notch.

Sizing floor joists for a 2nd floor addition. Randy wiebe and his team of skilled builders from rj contracting and consulting finished work for the day on the second floor floor joists with cross bracin. A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals. 2 grade of douglas fir are indicated below.

1 ft 0 3048 m. Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home. It appears that the home originally had only one floor but someone converted the attic at the highest point with normal high ceilings into a couple of small rooms. 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.

Floor joists align with the wall studs which align with the first story floor joists. Some newer homes have manufactured i beam shaped joists. I want this added floor space 2nd floor to support 23000 lbs of house hold furniture no water fixtures. Hi george we have a question about a new addition to our home.

To be storage space for 2800 cb ft of house hold. Mark the position of each floor joist along the sill plate. Dead load weight of structure and fixed loads 10 lbs ft 2. We want to add a living area upstairs.

Floor joists should be spaced no more than 16 inches 41 cm apart from center to center to provide adequate stability. Live load is weight of furniture wind snow and more. The walls are std concrete block.