Tongue and groove or chipboard

[Daniel_E]

I am in the process of opening up between two rooms in a 1950s house. In one room, there is an old worn parquet floor that does not hold up as it should. In the other room, there is 30mm tongue-and-groove timber as flooring. The parquet floor is 15mm, so I will remove it. Build up the joists and then lay tongue-and-groove or chipboard and finally a parquet floor on top to make the floor uniform. What do those of you with a little more experience with flooring say?

Regards,

Daniel

 

[Roary]

Shavings should become the smoothest, cheapest, and easiest to lay.

 

[Daniel_E]

If I lay 22mm chipboard flooring, do I need to join on the joists, or can it be laid continuously without getting creaks in the floor? (Have CC60 joists).

 

[styrman1]

both models exist.
It should be quite clear what kind it is.