YOU CAN COUNT ON CORRELL: Correll was established in 1969 and has been in business for over 50 years. CST Adjstable Standing Desk (HPL) Adjustable height allows for standard heights of 36", 39", 42" or anywhere in between. Strong steel frames with adjustable nylon glides to protect floors. With our out Standing Customer Service, innovative new product lines, and the largest selection of Folding Tables available from any manufacturer, now, more than ever, you can count on Correll.