Floorboards - replace or not?

[mri_ice]

House built mid 1950s. We had a leak under the shower with water running into the ceiling (https://www.diynot.com/diy/threads/shower-leak-and-floor-damage.640390/#post-5894893) and I had to rip the landing carpet up and lift some floorboards - we weren't sure whether it was a leaking pipe, thankfully not.

The floorboards have seen better days and I'm tempted to replace them as I've already got the carpet up. That way I know it's done and won't need to be touched again while we're in the house.

Most floor boards seem to be 18mm these days, mine are just over 20. Am I right in thinking that these (https://www.travisperkins.co.uk/pla...ing-5th-finished-size-20-5mm-x-144mm/p/181003) - finished size 20.5 mm would be the right replacements?

 

[ree]

OP,
This is almost a double post - best to keep everything on the other post.

What you have done here was not a good idea.
For now, lift all the proud nails, and then lay the boards loosely back in their original places - dont fix ie nail or screw, anything.

 

[StephenStephen]

I wouldn't replace those floorboards if they were mine - they look fine, and you could quite easily end up with something of poorer quality than you have.
I certainly wouldn't want modern t&g running over pipes and cables.

(Most of the floorboards in my home are decades or even hundreds of years old, and won't need touching in my lifetime.)

When it comes to wood, new is not necessarily better.

 

[StephenStephen]

OP,
This is almost a double post - best to keep everything on the other post.

What you have done here was not a good idea.
For now, lift all the proud nails, and then lay the boards loosely back in their original places - dont fix ie nail or screw, anything.

I'd be wary of this advice - you've been clear that you needed to lift the boards to look for a leak, and this is a completely different question so it's clearer putting it in a separate thread as you've done.
If you don't need access under there for the repair, and it's dry - go ahead and fix them down again.

 

[mri_ice]

Thanks for the input everybody.

Sorry to cause confusion, I thought it was cleaner to keep the threads separate but clearly it added more confusion, apologies

I have a leak in the bathroom and will need to pull the bathroom flooring to remedy. That’s a separate issue though.

The water actually made its way into and under the landing which is why I had to pull the floorboards in the landing - damaged one in the process too - and hence the reason for this post, I was debating whether it was worth replacing all of the landing boards or just the one that I broke. I also noticed big gaps, clearly they’d been up before and the T&G had been broken in the process.

Reading the comments above I might not replace all of them, noting the comment about quality as well.

Either case, as ree suggested, the landing will only be fixed after the bathroom has been stripped and redone.

Thanks all.