connerww

I built the bench per the plan with the only deviation being a 9" vise from Rockler. A week later the bottom piece of MDF started to split. I don't know the difference in weight between the vise I purchased and the 7" Groz prescribed but the MDF was a bad choice in retrospect. Is there another plywood anyone would recommend for more strength and longevity? Shop time is precious and I don't want to spend the time required for a hard wood glue up - thus the choice to make this bench in the first place.