Conestoga Wood has six new MDF mortise & tenon designs along with four new MDF miter designs. Conestoga’s 5-piece MDF offering now includes 37 popular mortise & tenon, miter, applied moulding and grooved panel designs, each with a matching drawer front. MDF doors offer dimensional stability for high humidity environments and extremely dry climates, both of which can have an adverse affect on traditional wood products. The company says their ultra smooth surface makes the perfect substrate for painted finishes.