Deck blocks can be installed without disturbing the tree roots. īut using deck blocks instead of footings simplifies all this. I have an entire article about deck construction requirements over tree roots. But a deck around a tree has some complications, especially with roots. A deck around a tree is an excellent way to enjoy the tree’s shades. There is more to the tree under the ground than above. When Deck Blocks Are a Good Idea Deck Blocks Are Better for Decks Around Tree Roots Frost level footings are more stable and can support more weight, and last much longer than deck blocks.īut if you are okay with a little up and down and are not building a deck to be enjoyed by your grandchildren, then maybe deck blocks are a good idea. If you are not comfortable with the idea of your deck rising and falling with the ground. Deck blocks can only be used for floating decks. How can you determine which is best for your deck? Let me explain more when deck blocks are a good idea, and when they are not.įirst is your level of comfort. Deck blocks are good for some decks, but not all. The use of deck blocks is rarely a good idea for decks requiring permits. It is a bad idea to use deck blocks when attaching the deck to the house, on stable ground or supporting elevated decks, pergolas or a roof. Which type of footings should your deck have?ĭeck blocks are a good idea for low decks, decks around trees, areas with low frost levels and economical decks. The biggest difference between each is from where the deck is supported, below the frost or floating on the ground.

There are two common footings options for a backyard deck, deck blocks or frost footings, including concrete piles, screw jacks, and many more.

Concrete deck blocks cost