The spacing between posts for a floating deck depends on a variety of factors, such as the size of the deck and the load-bearing capacity of the foundation. Generally, the spacing for posts is recommended to be no more than 5 to 6 feet apart as a general rule of thumb.
However, this spacing may need increased when the deck is more than 6 feet wide or long, or when it requires increased support. For example, decks that are higher than 1 foot off the ground will need posts set closer together in order to properly support the weight and dimension of the deck.
Additionally, the soil type and type of covering the deck will have (if any) must also be taken into account when determining the post spacing. If the ground has a likelihood of shifting or settling, posts should be spaced even closer together.
Additionally, heavier materials such as stone and brick will require posts to be closer together than lightweight options such as aluminum. For best results, consult a professional who can recommend the appropriate post spacing for your particular deck.
How many footings do I need for a 12×12 floating deck?
The exact number of footings needed for a 12×12 floating deck will depend on the frost line depth in your area and the soil conditions of your yard. Generally, you will need to install 1 footing per 8-10 linear feet of decking.
In this case, 12×12 would be 144 square feet, so you would need 14-18 footings. Additionally, you will probably need to have an additional footing in each corner of the deck for extra support. Therefore, in total, you would need 18-22 footings for a 12×12 floating deck.
How far apart should tuff blocks be placed?
Tuff blocks should be placed at least 4 inches apart from each other, but ideally closer to 6 inches apart. If possible, check your local building codes, as the distance between blocks may vary depending on the region or country.
When stacking tuff blocks, use a level and make sure that the layers are even and level to prevent settlement or erosion. Additionally, as tuff is a very porous, loose material, make sure that the blocks are tightly butted against each other and mortar is used in the joints between blocks to fill in any cracks.
This will help prevent water from seeping in and damaging the blocks over time.
Can you build a floating deck on cinder blocks?
Yes, it is possible to build a floating deck on cinder blocks. Depending on the size and weight of the deck, you will need to use appropriate cinder blocks. Generally speaking, it is best to use cinder blocks that are at least 8 inches wide and 6 inches tall for a floating deck.
However, for larger and heavier decks, you may need to use larger cinder blocks.
The most important factor when building a floating deck on cinder blocks is to ensure that the blocks are level with each other. This can be done by placing a level on each block and adjusting it until the blocks are level.
Once your blocks are level, you can then attach each block to the one below it using concrete nails or lag screws.
Once the blocks are in place and level, you can then attach the joists to them. Make sure the joists are securely attached to ensure the deck doesn’t move or shift. You can also use deck boards to create a visual frame and add a decorative finish.
Finally, you can use a moisture-resistant sealer to protect your deck from water damage.
With the right materials and methods, it is possible to build a floating deck on cinder blocks. Make sure to level your blocks, attach the joists securely, and seal the deck with a moisture-resistant sealer for the best results.
Can you use cinder blocks to support a deck?
Yes, you can use cinder blocks to support a deck. Cinder blocks are often used to support a deck’s base, but they’ll need to be properly spaced, level and in columns that are as close together as possible.
Make sure to use a masonry bit to drill holes in the cinder blocks, so that the fasteners you use to attach the frame of the deck are more secure. When deciding where to place the cinder blocks, consider how they will fit into the landscape.
Additionally, all cinder blocks should be the same size and free of chips or cracks. When mortar is needed to properly secure the cinder blocks to one another, choose a mix that is rated for outdoor applications.
Finally, examine each cinder block to ensure it is strong enough to support the deck before you install it.
Does a floating deck need footings?
Yes, a floating deck typically needs footings. While there are some designs that don’t need footings, most situations require them. Footings are needed to secure the deck to the ground and provide support, stability, and prevent movement.
Depending on the size and design of your floating deck, footings can be poured concrete footings, concrete pillars, pre-made concrete piers, even large timbers or posts set in the ground.
For floating decks that are low to the ground, skirting material and lattice may be enough to provide stability without needing footings. It’s important to consult with a professional or an engineer if you’re unsure about the design of your floating deck and if footings are necessary.
By having footings in place, you can be sure that your deck will be stable and safe to use for years to come.
Can I use concrete deck blocks instead of footings?
Yes, you can use concrete deck blocks instead of footings for certain decks and other structures. However, it is important to realize that concrete deck blocks are not suitable for all situations, and cannot replace footings in all cases.
Concrete deck blocks have an advantage in that they are easier and cheaper to install, and you can use them with any size post that fits into the block’s 4-inch-diameter hole. They also work on uneven, loose, and rocky soil.
However, concrete deck blocks are less secure than footings, and should therefore only be used in projects that do not receive a lot of impact or load-bearing and structural support. Generally speaking, these include smaller, elevated decks (less than 2 feet off the ground) and other structures such as raised planters and garden beds.
Concrete deck blocks should also not be used for decks that are larger than 20 by 20 feet.
Because concrete deck blocks are not a substitute for footings, it is important to research and understand the specific requirements for your project. A professional, licensed contractor may also be able to provide advice specific to your situation.
Do I need gravel under deck blocks?
Whether or not you need gravel under your deck blocks depends on what type of deck blocks you are using. Concrete deck blocks or precast foundation blocks can be placed directly onto soil or concrete, but wooden deck blocks and some plastic deck blocks should be placed on a crushed gravel for drainage.
Crushed gravel with sharp edges is preferred. In cases where your soil does not drain well, it is best to remove the top layer of soil, add a layer of crushed gravel to the surface, and then place the block onto the gravel.
This will help to ensure proper drainage and support for the deck blocks.
Are deck blocks a good idea?
Deck blocks are a great idea for building an outdoor deck. They are pre-formed concrete blocks that can be stacked on top of each other, making it an ideal solution for novice builders who lack the carpentry expertise to could build a deck from scratch.
Deck blocks are also very durable, allowing them to support heavier weight for decks than other materials would. Furthermore, deck blocks are also very easy to install, meaning that it will not require a specialized labor force.
Lastly, deck blocks are usually cost-effective compared to hiring a professional to build an outdoor deck. All these factors make deck blocks an excellent idea in many situations.
Do I need deck blocks on every joist?
No, you do not need deck blocks on every joist. Deck blocks are used to support the joists, but the type and number of deck blocks will vary according to the size and weight of the deck, the local building codes, and the type of soil the deck will be built on.
Typically, deck blocks are placed at the corners of the deck, along the outermost joists, and at intervals of no more than six feet along the joists. However, if your deck has a heavier load, such as a hot tub, more deck blocks may be necessary.
Before you begin installing your deck, check with your local building department to make sure you are meeting all the safety and building code requirements.
Can a deck be built without footings?
Yes, it is possible to build a deck without footings. A ground-level deck is typically constructed directly onto the soil, or a concrete slab. Instead of footings, the deck is supported by a series of pressure-treated wood joists, beams, and posts.
Depending on the size and shape of the deck, it may require additional support in the form of joist hangers and/or blocking. When building a ground-level deck without footings, one important factor to remember is that it should be built on level ground.
If the ground is not level, it may be necessary to level it out with soil or gravel before beginning construction. It is also important to make sure that any wood used for the ground-level deck is pressure-treated or of a type that is suitable for ground contact.
Without proper protection, wooden decks are likely to rot over time. Finally, some locales require a building permit for constructing a deck of any kind, so be sure to check before beginning any work.
Can you build a deck directly on the ground?
Yes, you can build a deck directly on the ground, though there are a few things to keep in mind in order to do so successfully. First, you should make sure that the area where you will build the deck is solid and level.
Additionally, you should make sure that the ground is well-drained, with no pools of water. Additionally, if you live in a cold climate, you should make sure to dig down at least 8 inches below the frost line to build your deck on.
This helps ensure that the deck won’t shift and become warped due to the ground freezing in the winter months.
Once these factors are taken into account, you can start to build your deck. You’ll need to use pressure treated wood for the joists and beams which form the frame of the deck. If the deck is low to the ground, you will want to use concrete anchors to secure them in the ground to provide extra stability.
You will also need to use a vapor barrier to protect the wood from precipitation and moisture. Finally, you will want to make sure to use a weather resistant decking material that has been treated to withstand the elements.
Do you need footings for a deck on the ground?
Yes, if you are planning to build a deck on the ground, you will need footings. Footings provide a secure foundation for your deck and help prevent it from shifting or sinking over time. The size and depth of the footings will depend on the type of deck you are building, the size of the deck, your climate, and the material you are using.
Generally, the footings should be a minimum of 10-12 inches deep and 8-10 inches wide, filled with concrete and placed so they are level and square with one another. If you are unsure of how to properly install the footings, hiring a professional is recommended.