Exposed beams under sloped ceiling - weight issue for rafters?

[BlueElephant]

Hi,

I'm thinking of adding exposed beams under the sloped ceiling of one of my bedrooms.

Rather than using faux wood beams, I plan to use 2''x2'' sections of real old timber and screw them into the rafters (with the plasterboard in between).

Am I right in thinking that 2''x2" sections of the same length as the rafters are a negligible weight for each of my 2"x4" rafters as well as for the structure supporting the rafters?

Cheers,
Oliver

 

[noseall]

Am I right in thinking that 2''x2" sections of the same length as the rafters are a negligible weight for each of my 2"x4" rafters as well as for the structure supporting the rafters?

The rafters won't give a hoot.