250 to 300mm center to center
Nothing happens. A hole is drilled through the joist and the wire is pulled through it.
Drill a hole large enough and pull the cable through. The hole must be 1-1/2" from the edge of the joist to prevent nails or drywall screws from penetrating the cable. If the hole is less than this distance, a nail plate must be installed over the edge of the joist so when the wall covering is added, a screw or nail can't penetrate the wire. Any hole drilled through a joist must be no more than a fifth of the depth of the joist and should be as near as possible to the centre of the joist. Holes bigger than 30mm are not recommended without specifically designed additional strengthening to the joist.
600
Dan L. Wheat has written: 'Predicting the strength of wood-joist floors' -- subject(s): Floors, Wooden, Joints (Engineering), Wooden Floors
The ceiling joist span chart provides information on the maximum distance a ceiling joist can span without additional support. This helps determine the appropriate spacing and size of ceiling joists for a given room or structure.
The roof joist span chart provides information on the maximum distance a roof joist can span without additional support. This helps builders determine the appropriate spacing and size of joists for a given roof design.
Floor joist or ceiling joist? Floor joist have a board on the end all the way along the side of the building called a rim joist. Like the cross bar on the top of a T. Ceiling joist are nailed down into the top plate of the wall and to the rafters where possible.
A joist is a beam, a supporting structure in a building. The roof joist was riddled with dry rot and had to be replaced.
To reinforce a joist hole using a joist hole reinforcer, you can insert the reinforcer into the hole and secure it in place using screws or nails. This will help strengthen the joist and prevent further damage.
A rim joist, also known as a band joist, is the joist that runs along the perimeter of a floor system, providing support for the ends of the floor joists and acting as a barrier to airflow and insulation. In contrast, an end joist is a specific joist located at the end of a span, connecting two adjacent joists or providing additional support at the end of a row. While both serve structural roles, the rim joist is integral to the overall framing of the building, whereas the end joist is focused on connecting and supporting individual joists.
it depen on the size of the joist
To sister a joist for structural reinforcement, you will need to attach a new joist next to the existing one to provide additional support. This can be done by securing the new joist with nails or screws along the length of the existing joist. Make sure the new joist is the same size and type of wood as the existing one for proper reinforcement.