Joining Chipboard floor (for shed)

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Hi all

I am building a metal shed in the garden. The main foundation is that of concrete. The sub floor is two pieces of chipboard floor both 5 foot wide. The sub floor will sit on the concrete base. My question is having butted up the chipboard floor together what is the best way in which to joint the two pieces together?

Regards
 
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you're probably best off putting some shallow "joists" ( 3x2 on side or something ) under the floor and screwing to that..
that way, if you use pressure treated timber, your floor isn't in constant contact with the damp concrete and won't rot away as fast..
 
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Chip board is an extremely poor choice both for external use & for a shed floor; I don't even like using it inside. It's not very hard wearing, will turn to mush in damp conditions in a very short time & mice & rats find it nice & easy to gnaw through using the shavings make a nice cosy nest.

Pressure treated T&G timber, Sterling board or even WBP ply is far more suitable, over a battened sub floor as suggested; I would also incorporate a sheet of plastic damp membrane in there somewhere.
 
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metal sheds bad news they get very damp and during the winter they rain internaly [condensation dripping]
chipboard flooring even worse news in a metal shed lol :oops:
 
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