On Sun, 21 Dec 2003 13:19:44 GMT, "WORSS"
wrote:

Might work, but I would question the span capability. MDF is VERY heavy
which, IMHO, will work against you in this situation.

I've seen entire home libraries, spec'd as paint grade, built from
MDF. If the structure is right, it'll be plenty strong.

A plain MDF shelf will sag substantially, just as you say. The same
shelf with two 1 1/2" MDF strips glued to the bottom will be
substantially stronger. Change the strips to maple, birch, or poplar,
and the shelf is stronger yet.

Barry