MDF Crown Molding Storage

[axio]

Hi guys, got a quick question. I'm installing crown molding at my new house, it's mdf, pre-primed. It's currently laying on the cement garage floor. Is there a problem with storing it this way? MDF won't warp and twist due to this, correct?

[timb]

It won't warp if its stored flat but it can swell and crack if it gets wet. This tends to ruin it.

I recommend putting some battens underneath every 2 or three feet or so to keep if off the ground if there is any change you might get water or dampness in your garage. 1 inch pvc irrigation pipe is good for this since it won't soak up the water. Jam a couple of little stones under one to stop the whole thing rolling away

In any case its a good idea to store mdf for a while before you install it in your house to allow it to outgas the nasty chemicals they make it with - formaldehyde and the like - the longer the better - I think I read it takes about 6 mos from manufacture to really air out.

Tim

[axio]

Thanks Tim, I appreciate it

[crokett]

When you do get ready to install it, one advantage to mdf moulding over wood is that it is fairly flexible so you can get it to follow the curves of the wall/ceiling better.

[cabinetman]

When you do get ready to install it, one advantage to mdf moulding over wood is that it is fairly flexible so you can get it to follow the curves of the wall/ceiling better.

I've always installed moulding as straight as I can and then caulk the differentials. To me, a curved moulding is more obvious than a blended caulk line.