Reply by ArtMann

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Posted on making barn door out of sheet mdf

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1415 posts in 1263 days

#1 posted 04-12-2018 03:50 PM

I think you need to do some experimentation before you commit to this type of construction. That is the only way you are going to know for sure how the whole thing is likely to turn out. Your approach is quite novel and it might just work but I wouldn’t stake a business reputation on it until I was confident of success. It isn’t that easy to laminate sheets of MDF so that there are no cracks. The problem is strong clamping over such a wide area. Just weights will not be adequate. I would be tempted to use a grid of 18 gauge pins to fasten the pieces together tightly and then just finish over them. When I built a large router table from two sheets of MDF, I used screws on the under side to hold the sheets together.

If these are exterior doors, then stop immediately. They are guaranteed to fail and in short order.

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