CF HPL Folding Tables 18x60 Montana Granite 18"x72" Rectangular Montana Granite high pressure laminate surface, resists scratches and stains and has a hard, flat writing surface. You Can Count On Correll: Correll was established in 1969 and has been in business for over 50 years. Automatic lock open folding legs helps to prevents accidents. Heavy Duty 5/8" thick high density particle board core with backer sheet to prevent warping from moisture from entering the table.