When you’re planning to build a deck, choosing the right foundation is key. You might be confused about deck blocks vs post holes.
Deck blocks are cheaper and easier for small decks close to the ground. Post holes are stronger and better for big, tall decks but cost more and are harder to do.
I am going to compare both options to help you decide which is more suitable for your deck project.
What Are Deck Blocks And How Do They Work?
Deck blocks are special concrete blocks used to hold up the beams of buildings, especially for decks that aren’t attached to a house. There are different kinds of deck blocks. Some have special grooves for holding the beams, joists, and posts for freestanding decks.
Other blocks have slots for holding small wood or composite pieces used around the edge of smaller decks.
These blocks come in different sizes, but they’re usually about 10 to 11 inches square and 7 to 8 inches tall, weighing around 48 pounds.
What Are Post Holes And How Do They Work?
Post holes are like big holes dug into the ground for building stronger structures. It’s a bit tough to do. First, you dig the hole, then put in an anchor bolt with a bit sticking out, usually in concrete.
Next, you secure the post with a plate, washers, and bolts on top. Then, you attach the supports to the frame using big nails or screws. There are different ways to do this, so your builders might have their own method for setting up post holes.
When to Use Deck Blocks?
Deck blocks are best for low or ground-level decks. They’re less affected by wind and don’t require a strong connection to the ground. However, in windy areas or where uplift is a concern, deck blocks might not be allowed.
When To Use Post Holes?
Installing post holes starts with digging a big hole, the size of which depends on your local frost line. The holes are filled with concrete, providing a stable base for your deck. Post holes are unaffected by frost heave, unlike deck blocks.
Deck Blocks Vs Post Holes: What’s The Right Choice?
Deck blocks are cheaper, costing around $6-$8 each, and they’re easy to handle by yourself. You don’t need to dig big holes or have expensive tools to use them.
On the other side, post holes cost more and need more work to set up. They’re really strong because they go deep into the ground and are filled with concrete, making a solid base.
They’re good for places with frost because they go below the frost line, unlike deck blocks which can be affected by frost.
Post holes let you build different kinds of structures and adjust the height as needed. Deck blocks are better for smaller, slightly raised decks.
Post holes work in any place, but deck blocks aren’t good for areas with sinking ground, strong winds, or very cold weather.
Deck Block vs. Post Holes: In-depth Comparison
Deck Blocks Are Easier To Install Than Post Holes
Deck blocks make your job easier because you don’t have to dig big holes. You just place them on the ground and they’re ready to use. This is really handy for small decks where you don’t need a lot of support. Since they’re pre-made, you can set up your deck quicker without much hassle.
Deck Blocks Are More Affordable
If you’re on a budget, deck blocks are a good choice. They cost less, around $6-$8 each, and you don’t need to buy or rent special tools. This makes them a great option for smaller projects or if you just want to save money.
Post Holes Can Support Heavier Loads
Post holes are better for big, heavy decks. They go deep into the ground and are filled with concrete, which means they can hold a lot more weight. This is important for larger decks or ones that will have a lot of people or furniture on them.
Deck Blocks Are Simpler And Don’t Require Professional Skills
Deck blocks are great for DIY projects. You don’t need to be a pro to use them. They’re straightforward and easy to handle, making them perfect for beginners or if you want to build a deck without hiring experts.
Post Holes Need More Physical Work
Digging post holes is tough. You need to dig deep and it’s a lot of physical work, especially if you’re doing it by hand. This might be hard if you’re not used to heavy labor or if you have a large area to cover.
There’s A Risk Of Injury With Unfamiliar Digging Equipment For Post Holes
Using equipment for digging post holes can be risky if you’re not familiar with it. There’s a chance you could hurt yourself or accidentally damage something. This is something to think about if you’re planning to do the digging yourself.
Post Holes Take Longer To Dig
Digging post holes takes time, especially if you’re doing it manually. This can make your project take longer to complete. If you’re in a hurry or don’t want to spend a lot of time on installation, this might be a downside for you.
Post Holes Might Require Special Tools
For post holes, you might need specific tools like a post hole digger or a concrete mixer. These can be expensive to buy or rent. If you don’t already have these tools, this will add to the cost and effort of your project.
Conclusion
Building a deck with deck blocks is faster and cheaper, but you can only use them for certain types of decks and in specific places.
Post holes, though more expensive, give a stronger base and can be used in almost any location. They can also be adjusted to fit different deck designs.
If you need a really sturdy deck, it’s better to go with post holes, even if they cost more. But if you just want a simple and fun DIY project for a small deck in your front yard, deck blocks are a great choice.
Hina Kanwal is the dynamic force behind Deckfaqs.com, blending her expertise in deck design with actionable insights. Known for her engaging content and practical advice, she empowers homeowners to elevate their outdoor spaces. Her passion and knowledge make her a trusted voice in the world of deck-building.
