Cut a board lengthwise at an angle

[111111]

Need to rip a roof board lengthwise, but unfortunately the room is not square.

So at one end, I need to have 2 cm and at the other 3 cm width (the length is 4 m).

How do I manage this on a table saw, what should I consider, what can I Google to find tips and tricks.

Or is it just a matter of hand sawing... 😴

 

[echoboy]

I usually draw on the board and freehand without a fence on the table saw, works well if 100% finish is not required?

 

[Workingclasshero]

Chalk line and cut in the table saw along the line.

 

[Vilde]

If you're going to rip a board with a table saw, you can screw that board onto another long board and saw along the bottom one. Hard to explain and I'm tired, but if you think a little, maybe you'll figure it out

 

[justusandersson]

The technique depends greatly on the tools and machines you have access to. The best result (if you don't have access to a jointer) I think is achieved with a plunge saw and guide rails. This assumes the board is large enough to be clamped. If you're going to saw freehand, a band saw is better than a table saw. If you "only" have a table saw, I think @Vildes's suggestion in post #4 is best. I don't think it's completely safe to rip a long workpiece freehand on a table saw.

 

[AndersS]

Rip with a Japanese saw with a rip side and 4 meters is no problem. If it needs to fit against a wall and then the crown molding, it doesn't take more than 5-10 minutes. Much focus will be on machines. and forget the regular handsaw because it is made for crosscutting.