What mm

Poppy

what's the best size of plywood 9mm or 12mm? To panel the van that is :)
 

Aladdinsane

Depends where you're putting it and what you want to put on it, hang off it etc. I and and many others have gone for 12mm floor, 6mm side walls and 3mm for ceiling. Some have used 9mm for the floor but if you are insulating underneath then the wood supporting batons need to be closer together.
 

n brown

Forum Member
i always use 6mm birch ply on the walls as its very strong stable stuff,probably better than cheap 9mm ,i screw direct to the ribs with them there screws,and fix all my cupboards to the ply with no strengthening battens behind and run a bead of gripfill on every join between wall floor ceiling and cupboard.massively strong,if you ply on the floor direct then 9mm any old ply,but if you insulate then space the battens at30cm glue them to the floor with gripfill or stixall
ceilings i like in matchboarding,but i'd use 6mm ply screwed direct to the ribs, 3mm would need extra support or it'd sag,joins between ribs make with a 100mm strip of 6mm ply glued and screwed to the board you've just fixed
 

hextal

As above. I used 6mm on the walls and 9mm on the floor. I spaced them at 400mm centres though and that was too far as there is a little too much flex.
 

Poppy

Depends where you're putting it and what you want to put on it, hang off it etc. I and and many others have gone for 12mm floor, 6mm side walls and 3mm for ceiling. Some have used 9mm for the floor but if you are insulating underneath then the wood supporting batons need to be closer together.

Just checking out your link :)

I'm insulating all over 1st, plan to put over head storage & will use the side panels to secure other units, as well as a walled area for the loo
 

Poppy

Gonna be insulating before I wire, only because I can do the insulating on my own. I've asked a mate at work to help me with electric stuff, he will, but pinning him down is not easy. First job is to take out the extra 3 seats!! Have no idea what to do wiv um lol
 

Poppy

As above. I used 6mm on the walls and 9mm on the floor. I spaced them at 400mm centres though and that was too far as there is a little too much flex.

I was going to space them as wide as the insulation (the narrow one) then put cross sections in.
 

n brown

Forum Member
right. i had a duck not long ago,a minibus. normally i'd use kingspan for the floor as its more or less rigid enough to walk on.another tip is put 2 battens across the van at about 150mm centres,,no insulation ,and use this to get services from one side of the van to the other
 

Poppy

right. i had a duck not long ago,a minibus. normally i'd use kingspan for the floor as its more or less rigid enough to walk on.another tip is put 2 battens across the van at about 150mm centres,,no insulation ,and use this to get services from one side of the van to the other

Huh....good idea mate, cheers :D
 

Firefox

I used

3mm Hardboard on the ceiling

6mm on the floor but it is supported by battens and rigid insulation all on top of 9mm original ply floor

6mm on the walls

6mm for the cupboards and furniture generally

9mm for the cupboard ends/supports/curved profiles.

18mm MDF for the shower compartment and bed partition walls
 

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