In our continuing quest to be first in the Aquarium Furniture Market. We have Designed an engineered frame for all of out 120g and up stands. We have always used 2×4 lumber that we plane and machine to straight and square material. The issue we came into is if the lumber sits in the show for a few weeks it twists and becomes useless. SO A idea was born. This way of construction is more expensive than what we have done in the past but it lends its self to be absolutely square, straight and true in all dimensions. Guaranteeing you , The Customer, A perfect product that will lasts for decades to come.