Can I Build a Deck Low to the Ground?

Yes, you can build a deck that is low to the ground. However, there are several important considerations you need to keep in mind to ensure the longevity and structural integrity of your deck.

Building a Deck Directly on the Ground

When you build a deck directly on the ground, it is necessary to use wood that can contact the ground. Although this is possible, it is not the best approach. Over time, the untreated wood will likely develop issues if proper maintenance is not performed.

Using Concrete for a Deck

Perhaps you are considering a concrete deck. While it is an option, it requires careful planning. Concrete is a good choice, particularly if you are outside. If you are enhancing a wooden deck without using piles, it is a plausible idea, but it may not be the most ideal solution. Most treated wood is designed to last when kept out of the ground and off the ground, extending the life to at least 20 years. However, wood that is directly in contact with the ground will be exposed to moisture, leading to potential rot and other problems.

In typical construction, a deck is built using piles, damp proof coursing (DPC), bearers, joists, and deck plates. If you do not use these elements, the wood will have a large surface area in contact with the ground, leading to moisture absorption and potential rot. Galvanization and other fixings also need to be considered properly to prevent corrosion.

The Key to a Low Deck

Yes, you can set joists on deck blocks that are close to the ground. The key is the use of adjustable height saddles to ensure a level and low deck. You can pour concrete pads and use saddles to support beams or joists, with only the top part of the joists sticking up. For muddier ground, ground screws can be used to augment the reach and maintain stability.

I have built a low deck that spanned ground-level concrete, and I used Kinner ground screws to augment the joist reach. The result is a low deck that is completely level. The critical factor is the use of adjustable height saddles, which can accommodate slight variations in terrain and ground conditions.

Conclusion

Building a deck low to the ground is a feasible option, but it requires careful planning and the right materials. By carefully considering the conditions and using appropriate decking techniques, you can ensure that your low deck will last for years to come.