Dura-bench Greenhouse Bench Top 2 X 4 Foot, Square Holes 1 X 1 Inch, Interlocking Greenhouse bench tops allow airflow to flowers and plants - Smooth top allows trays, pots and flats Durable, easy-cleaning, smooth (no splinters or rough edges), and non-porous Adds an attractive, professional appearance for your retail displays Square Holes: Measure 1 inch x 1 inch - Panels are 3/4 inch thick 2 feet x 4 feet: Panels interlock with tabs on the 4 foot side