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==Cutting a joist== ...aced too closely to leave space for a practically sized loft hatch, so one joist is cut away to give enough space for the hatch. This is done as so:

...issing section so as to restore the compressive strength of the top of the joist. ===Repairing a notched joist===

...joists are 2" wide, though 1.5", 3" and 4" are also used at times. Common joist depths are anything from 3" to 11", though again other sizes are sometimes Rigidity and strength are 2 different characteristics. Joist stiffness is proportional to width x depth cubed.

...reasing the noise. Its quieter to [[screw]] the switch through to a timber joist, though there isn't always one in the right place.

...r flexible mounts) to prevent transmission of vibration to the [[wall]] or joist. Joist | | | | Joist

[http://www.planningportal.gov.uk/england/professionals/en/ Joist dimensions]

* Joist hanger

Today, while fixing a broken floorboard, I discovered rotten wood in a joist. Since all I know about wood rot is that there are basically two kinds: "d

...batten. Sometimes if the cut out section straddles a [[Stud wall|stud]] or joist, you can refix the patch to this, however in most cases you will need to cu

...above, drilling some tiny marker holes next to joists can be a real help; joist positions can then be pencilled onto the ceiling or the top of the [[wall]]

Another way is to cut the hole back to expose 2 joist surfaces, and screw a new piece of PB to the joists. Its a good idea to als

...]] access. I also cut a quarter inch off the side of one of the [[wood]]en joist notches so the new pipe could move very slightly to enable everything to li

* Joist sections may be too flimsy for storage of goods in the attic. ...ecessary to make this stronger, or in some cases even substituting a steel joist.

...floorboards. Cutting a 2m length of 50mm aris off the underside of a floor joist to make a "squint" in the ceiling above a staircase. Taking out o

==== Joist Notching==== Notches must be no more than 12.5% of joist depth installed between 10% and 25% along the spans length.

: joist, rafter, purlin, or any other large wooden, steel or concrete structural me

...drilled and countersunk holes (subsequently filled), fixed it firmly to a joist to make sure there could be no repeats of previous incumbents attempts at m

...one with a curved tooth section) will allow a plunge cut to be made over a joist. ...ing the whole lot weaker). Another advantage of drilling the centre of the joist, is that your cables should be well away from any nails or screws.

...ncy works - loft insulation installers may have stapled a certificate to a joist

|Floor - PB + joist + FB flow up ||1.9 || Flow from downstairs to upstairs is faster than the |Floor - PB + joist + FB flow down ||1.5 ||

* Usually specified for use with joist hangers

===Joist Brace===

...ncreases the water content within the wall, which can occasionally lead to joist rot.

...Then I built the stud wall between an upper U-channel fixed to the ceiling joist and a lower U-channel raised on 50mm blocks on the floor XPS. The floor scr

...ir motors put in the void between ceiling and floor, side fixing them to a joist. This must not be done with commercial fans, which use motors that rely on

...o lifting - precise neat cuts can be plunged into a board directly above a joist with no risk to pipes or cables under the floor.

Board ends should rest on a joist. Where this is impractical, a cross nogging can be fitted under the board e

[[File:LofCovBeamLayout.png|thumb|1020x1020px|New floor joist layout]] ...with a 200mm tall, 6mm thick flitch plate that runs the full length of the joist. The beam is bolted together every 600mm with 12mm bolts.

: joist, rafter, purlin, or any other large wooden, steel or concrete structural me ;[[Strengthen a Wood Floor|Joist]]

...ghtly to avoid catching on the wood. It may be possible to make one from a joist hanger.

...require the cable to be in contact with the plasterboard ceiling, wall or joist

Where insulation exceeds the depth of the [[joist]]s and no [[floor]] is fitted, best practice is to fit the insulation in 2

...a floor and between a couple of joists that also have a large Rolled Steel Joist (RSJ) running between them, so there was no way to actually get the drill f