Reusing joists (probable stupid questions)

[doormouse1]

I've 22 joists (pine 200mm x 50mm x 3600mm) that I've just removed from their RSJ supports (trying to straighten everything up before I install new floors/ceilings/walls).

Being tight with money I intend to reuse them.

My question - is there any reason to replace them with new ones?

I ask because I imagine I'll stay in this house till death (hopefuly another forty years).

I believe the joists to be 31 years old (when the house was renovated)and they seem in good condition though they are quite dry and three have twisted.

A second question - if I reuse them, is it OK bash wood between adjacent joists to straighten the twisted ones?

They seem to have had criss-cross pieces of wood to hold them in place before, but these had all fallen off. Can I use chunky bits of joist crossing between joists to keep them straight?

I know these seem like stupid questions, but it'd be a real pain to take everything back up 'cos I did it wrong.

Thanks

 

[Deluks]

If they're are sound then no reason not to. I'd give them a coat of timber preservative first for good measure. Solid blocking with noggins between is essential.

 

[joe-90]

They are probably better timber than you get today. I'd probably replace any that are badly twisted as that will prove a false economy.
You could use some of the twisted timbers as noggins.

 

[doormouse1]

Thanks