The most frequently asked questions about our artificial rocks are about size. We get it - since these fake rocks are designed to mimic real ones, their sizes don't fit into a nice box. To give you an easier way to compare rock sizes, we put together this size reference guide, grouping rocks of similar size together.
Standard Rocks
Ranging from small to jumbo, these fake rocks are handy hiding spots for outdoor fixtures such as electrical outlets, well heads, septic cleanouts and more.
From left: Small, Medium, Large, Extra Large, Jumbo
Small Rock
17" L x 10.5" W x 8" H
Medium Rock
18" L x 23" W x 13" H
Large Rock
27" L x 21" W x 14" H
Extra Large Rock
31" L x 27.5" W x 16.5" H
Jumbo Rock
28" L x 19" W x 20" H
Boulders
These artificial boulders are large enough to cover septic tank risers, irrigation equipment, telephone pedestals and more.
From left: Giant Boulder, Large Boulder, Sitting Boulder
Giant Boulder
54.5" L x 40" W x 31" H
Large Boulder
47" L x 41" W x 22" H
Sitting Boulder
52.5" L x 35.5" W x 25" H



Skimmers
Skimmers are low to the ground and cover a large surface area, perfect for concealing drain tiles, septic lids, manhole covers and more.
From left: Large Skimmer, Medium Skimmer, Small Skimmer
Large Skimmer
38" L x 31" W x 5" H
Medium Skimmer
33" L x 23" W x 6.5" H
Small Skimmer
21" L x 18" W x 3.5" H
Other Rocks
These rocks are uniquely sized and don't fall neatly in the above categories. Below are different angles of each to offer you a better perspective.
Key Rock
10" x 8" x 5"
Long Rock
31" x 23.5" x 12"
Ground Cover Rock
47" x 44" x 13.5"
For more information and diagrams, check out our blog post on how to choose the right size fake rock. You can also contact us by email or reach out to us on Facebook.