Notched Wood Stringer: Can you notch 4x?

[davab]

I have alway seen 2x14 being notched for wood stair. Can you notch a 4x wood stringer to fit the risers and treads??

I would appreciate any thoughts / concerns.

 

[Ron247]

Do you mean 4" thick rather than 2" thick? A timber saw can cut that thickness if that is what you mean.

 

[davab]

Yes, as shown in this link.
Link

 

[msquared48]

Can also use a skill saw with a hand saw to finish.

One of the pictures you furnished even shows a 4X or 6X stringer too.

Point is that it can be done.

Mike McCann, PE, SE (WA, HI)

 

[dhengr]

Davab:
The important thing is that you maintain that 5-6” bottom section intact and continuous. As shown in your link, cutting the notches for the treads and risers reduces that 2x14 or 4x14 to an effective 5 or 6” deep beam/stringer, along the bottom of the member, and you don’t want to notch that further. So, most good carpenters make most of the cut with a circle saw into the corner lines and then finish the corner with a hand saw, saber saw or some such, so as not to overcut the reentrant corner. Lay the first stringer out, cut it and check it. Then use it as a template for the other stringers. This assures they are all the same. Watch out for floor finish heights and actual height, fl. to fl. in laying out the first stringer.

 

[davab]

Thank you guys for the responses.