May be a little late on the uptake here, but since we found this article I'm sure others will and since there's no solution been posted, we have put one together: https://www.locksonline.co.uk/2-Door-Jack-Jill-Bathroom-Locking-System.html It's a system for 2 doors but if you have more we can specify a custom kit. Really simple and safe low-voltage stuff too.

Tracey, those are encaustics which tend to be 18-20mm in depth, your wood will most likely be engineered ply if you have underfloor heating and depths vary 12mm upward. If one or the other substrate needs to be built up to accommodate the other that is possible. Be aware there will be some movement between the two, more so if you are using long boards, less with parquet, so consider how best to deal with any movement or expansion between the two. There are plenty of products available for this. Make sure your encaustics are sealed correctly. You could also find the cleaning regimen of the two finishes may be very different. Lithoflin for encaustics - and oil/wax for an oiled floor, that's not a great combination, so perhaps an easy maintenance wood might be better in the long run.

Great question! We value a good night's sleep at Bloc Blinds and have developed the BlocOut Blind with that in mind. It provides an unmatched level of darkness in the home. We get a lot of feedback from customers about how much better sleep they are getting as a result both to reduced light in their own room but also due to their children sleeping in longer thanks to the light levels in their rooms too. It is a winner of multiple awards including the House Beautiful award for Best Eco Product and shortlisted this year for the Made for Mums awards under Best Nursery Product Category. Find out how to Get a better night's sleep here.

How about contacting a locksmith or window/door repair company for advice. Where are you based? I use a local company called Lock & Glaze for all my repairs. They are based in Herts.