Floor Joist Supportfor Tile

Tile over wood subfloor.

Floor joist supportfor tile.

4 add a single 2x10 header between the doubled joists to carry the 1 stub joists from the beam. You must consider all of the weight the floor joists must be able to support. Also when installing the joist supports you need to make sure that they are level. In this scenario jim and rich install 1 2 cementious backer unit cbu resulting in at least an 1 1 8 thick.

Plywood and osb are the two most common materials used for floor decking and typically they are 5 8 or 3 4 thick. 2 temporarily support the 3 joists that pass under the shower pan area on either side of that area. If the floor was built using the general 16 inch spacing you can expect a bathroom floor to safely hold 40 psf. My question is should the tiles be placed so they are perpendicular with the floor joists or can they be laid parallel to the joists.

The floor framing for bathtubs requires special attention. 3 cut out the joists under the area to be lowered. Hi a question regards setting out velux windows on a new extension roof basically do the velux s have to be spaced out so that the tiles fit as either a full or half tile to the edges of the velux. Joists are spaced at regular intervals much like the studs in a wall frame.

Obviously to do this then the joists have to be placed to reflect this exact positioning. The tiles are 7in x 20in. So a 5 by 10 foot bathroom floor generally supports up to 2 000 pounds. Cut 1 5 extra on the beam side and 3 extra on the other side.

Planning on laying tile in our house. We re putting down cement backer board and then ceramic tile. In extreme cases jim and rich have advised additional joists be put in place. Now consider the same floor joist supporting stone tile flooring such that floor dead load is now 20 psf.

However you should take a little extra time to double check to make sure that they are all level. If we use the same joist total deflection will be 1 50 1 25 0 25. They are covered with subflooring panels of plywood or oriented strandboard osb to complete the floor s structural assembly and create the solid continuous platform on which you install tile carpet or other finish flooring. This provides sufficient support for most cast iron bathtubs which run under 500 pounds even when full.

A standard bathtub can hold between 40 and 60 gallons of water. However the limit on total deflection is span 720 resulting in the need for total deflection to be only 0 50 half of the 1 00 value for span 360.