How can I estimate coverage needed for my Koi pond?
We have put together some helpful tools for many tasks. One of these is a handy Coverage Estimator for Ponds or other water features. You can also use this for just about any 3 dimensional shape where the sides and bottom are the only surface to cover. It also breaks down the areas, so if you are covering the top area (like the entire area of a shape), just add the amount shown as “lower surface area” into the total.