This question should be posted on one of the other forum sections such as carpentry. This section mainly concerns handicapped accessibility.
MFD stands for Medium Density Fiberboard which is a material formed from wood particles in a synthetic resin binder. Medium density refers to the weight of the material which, in this case, is 40 to 50 lbs per cubic foot. Although some particle boards are "moisture resistant" they are not recommended for exterior use especially at a column with exposure to direct rain. Particle board is not recommended in applications where the moisture levels have a variation of more than 30% which is the case in most exterior locations.
Consider using a cement board product such as "Hardie-board" which is available in 5/16" x 48" x 96" sheets. Cement board is very water resistant, tough, dimensionally stable, and holds paint well. Drawbacks are that it is harder to cut (you must buy a special circular saw blade), long/narrow strips are somewhat brittle, and it requires more care in nailing/screwing. |
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