The Presswood Pallets we sell are certified for export use (ISPM-15 Compliant). They are resistant to “…any wood boring insects and future infestations.” They are both economical in price and nestable which means that more can fit in a confined space than other standard types of pallets. For example, 1,100 Heavy Duty Presswood Pallets fit in a 53 foot trailer while about 500-650 or so standard 40” X 48” pallets fit in the same space.