Pick the size that matches your model, if you don’t see your size because you have a model that is no longer offered, pick the size that is closest to your length needs and customize onsite.
IMPORTANT: If you have or will be ordering the Winter Package then this bench WILL NOT be usable since the raised bed that comes with the winter package will take up the room this bench would have used.
If you want both sides of your greenhouse to have this bench you need to order 2 benches.