Quote:
	
	
		
			
				
					Originally Posted by  fishytime
					 
				 
				you can use MDF.....it just needs to be prepared and painted properly......sealer, primer, paint and then lots of silicone......you cant, and I mean cant leave any exposed MDF, like where you cut/ drill holes etc.....all seams, cracks and screw holes must be caulked.....it may be a cheaper material to buy initially but you make up for it in the painting process... 
			
		 | 
	
	
 And it weighs more than plywood