Ceiling joist are 2x4.
Cutting floor joists to install stairs.
Install the two main replacement support joists the ones that run parallel to existing joists before you cut the existing joists.
This will help to prevent any floor or ceiling sag that may occur when cutting out the pre existing joists.
For example if the floor joists that you cut are 2 by 8s and the hole is 72 inches long you need two 2 by 8s cut to 72 inches.
Ceiling joist are support by a wall that runs roughly down the middle of the house.
A joist is made from wood concrete and steel and it is basically a strong material that provides support and stability to the entire house.
The thought of cutting through your floor might seem scary but installing any new staircase whether rigid stairs from one floor to another or pull down stairs leading to an attic requires an opening in the floor.
The floor joists are perpendicular to the stairs so i will need to cut a doubled 2x10 joist flush to the stairwell walls.
1 can the joist be cut to make room for the attic ladder.
Single story house built in the 1940s.
I m not even sure that would be possible since the joist sits about 6 inches out from the newel.
There is a floor joist that will need to be cut to make that possible.
It may be necessary to add temporary support to the floor or ceiling while the construction is in progress.
2 how much weight could the ceiling joist hold.
Step 6 install the two boards that you cut by fitting them into the opening and using 3 inch screws to screw them onto the exposed ends of the joists that you cut thus creating a hole with sides that are formed by.
The tools i have are the standard tools reciprocating saw 7 1 4 circular saw and a chainsaw.
This video was uploaded from an android phone.
A joist is a horizontal support member that holds up the wall beam ceilings and floors and connects these parts with one another and one example of the purpose of a joist is to connect the floor joist that is used to connect the stairs of a home.
Hopefully the attached pictures provide additional info.
