Crofter Posted March 20, 2017 Posted March 20, 2017 In structural terms, two thin layers will always deflect more than a single layer of equivalent thickness- unless you succesfully achieve a full bond between the two layers, which is not as easy as it sounds. What is the spacing between the joists?
Onoff Posted March 20, 2017 Posted March 20, 2017 10 minutes ago, jayroc2k said: 40mm joist spacing No need for ply or anything then, just nail the felt on? 1
Nickfromwales Posted March 20, 2017 Posted March 20, 2017 51 minutes ago, jayroc2k said: 40mm joist spacing Do you mean 400mm joist spacing and 40mm joists ?
Cpd Posted March 20, 2017 Posted March 20, 2017 When i put down one of my floors i had concerns that one day i may well need to have access to a specific location, so i built a removable hatch in the chipboard, i then made some very carfull measurments and sketch before putting the final floor over the top. Should i ever need access i hope it will be a bit easier.....
Onoff Posted March 20, 2017 Posted March 20, 2017 When I FELL through the lounge floor (done in 5/8" chipboard by the previous owner) it was only the carpet that saved me! I felt like Tom Hanks in that scene from The Money Pit: There's now more than one stainless steel door kick plate and bits of "proper" 18mm flooring chipboard in this floor. Seems a waste to do it properly as the whole floor is 100mm 'ish too high and even the concrete underneath has to come up!
jayroc2k Posted March 20, 2017 Author Posted March 20, 2017 Thanks all. I took advice and bought 18mm ply
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