DIY Doctor

Leveling Joist Flooring in 1900 Victorian House

Postby Bertie85 » Mon Apr 22, 2019 6:09 pm

Happy Easter Monday everyone!

I am renovating my 1900 Victorian house and the ground floor joists are not even: between the kitchen and the living room there is a -30 mm difference.

I am thinking about ideas how to lift the floor, which is going I to have 18mm P5 chipboard, 12 mm cement board and be tiled.

The only thing I can think about is sistering the joists, using screws +bolts.

Any ideas about other option and/or sizes of the building materials?

Do you guys think a 2x3" CLS is enough for the weight?

Since the room is about 4m wide (so the actual joists are) would you recommend to have a single support joist?

Would you agree bolts should be spaced 1200mm?

Would you think is letter toothed.or "squared at the base" bolts?

Many thanks everyone:)
Bertie85
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