Porcelain Tile In Kitchen

[LD1]

Not a profession builder, engineer or tile installer...I would be a little concerned because those 16ft joists are right at the edge of what the span tables say is acceptable for # 2 2 x 10 SYP.

Maximum Span Calculator for Joists & Rafters

Oops double post. Seems easy to do on iPhone.

Its actually probably a tad under the rating if you up the dead load to 15PSF, given that tile+cement board + mortar will likely push it to that.

Another thing to be sure of, is are you positive it is SYP. white pine is a bit softer.

Also, just so you are aware, even though you are at the "max" allowable span, that dont mean the floor cannot deflect. They used L/360 deflection. That means since you are at the max of 16', which is 192"........192/360 is alittle over 1/2" that your floor is allowed to deflect the way it is currently designed. I would be concerned with cracking grout loose with those numbers.

Also, what is under the area that you cannot shore the long span up??

And one final note, I would use a tile that has more of a rougher finish. I dont like that really glazed stuff. Sure it cleans up well, but its like walking on ice if there is the slightest hint of moisture.

 

[JD5210]

Thanks to all that responded. No. 2 SYP is what is stamped on the joists. It looks like I am at the edge or over it. As LD1 point out if I up either the dead load or the live load, it pushes me over the edge.

I am having a Lowes installer come out on Monday, but I am think I will have to go with the oak hardwood. Hardwood was my second choice for the kitchen, on the plus side, it looks a LOT easier to put down hardwood, then tile.

Thanks for your help.