11/19/2023 0 Comments Spacing for concrete deck blocks![]() Only equipment like a backhoe or a crane that can lift the pier and carefully lower it into the footing hole can be used to set them. These are very heavy, combined with reinforcing steel, and available in a variety of heights. Purchasing precast concrete deck piers is a third choice. On average, it takes no longer than 10 minutes to complete snapping the form together and begin pouring concrete. The shape is secured in place by the surrounding soil. ![]() There are no annoying support boards to deal with. The form is carefully backfilled with earth to keep it in place while the concrete is being poured after it is just where you want it. Additionally, lifting the form out of the hole to make modifications is simple. By simply adding gravel to the bottom of the hole, you may modify the height of the pier to exactly where you want it to be. It is simple for one person to pick up and chuck into a hole. This simple plastic shape only weighs a few pounds when constructed. The horizontal rebar reinforcing arrives pre-cut and pre-bent, and the form clamps together in less than a minute. It is clear from this explanation that this strategy is still used today, but it is not simple.įortunately, a plastic deck pier form that produces the footing at the same time as you pour the concrete pier was just developed and launched. The trick would be to strategically place the tube or form on the concrete footing and then fasten support boards to make sure it wouldn’t move while you filled the hole with concrete. The vertical concrete pier form may be one you built yourself, or you could buy thick, circular cardboard forms and use a handsaw to cut them to the required height. Two additional vertical rebar steel pieces should be installed once the footing is even and level in order to create a mechanical connection with the vertical concrete pier that will be installed the following day. To finish, you would lay on your belly and reach into the hole to smooth and level the concrete.Īdditionally, you would need to pause every now and again to properly install brief lengths of horizontal reinforcing steel before finishing with the remaining concrete. The pier’s hole, which is typically 24 inches in diameter, must first be dug, and only then can a concrete footing be poured. Before, accomplishing this required a tedious, multi-step process. Remember that the standard deck block has no mechanical means of attachment other than friction with the wood/ concrete deck posts.Ĭonsider employing poured concrete footings or piers that you build on your construction site you’d probably be better off. The USA has extremely few locations with this type of weather. Precast deck blocks are probably best suited for regions where winter frost only reaches a depth of 4 to 5 inches into the soil. Precast deck blocks as opposed to poured concrete footings However, if need be, steel reinforcing should be placed into all concrete used to support decks. Concrete’s strength in tension is just one-tenth that of its strength in compression. Steel reinforcement may or may not be present in the blocks. Pictures and accounts of ground-contact treated lumber that has decayed or been attacked by insects are all over the Internet. The wood/concrete deck post must be partially buried since the blocks must be buried, making it vulnerable to moisture penetration and wood-eating insects. Hope that the concrete lugs on the block don’t eventually fall off as the post simply rests on them. There is no mechanical connection between the concrete pier blocks and the wood / concrete deck posts. Pros:Īlmost always, one person can handle the deck concrete footing blocks. It’s crucial to understand that the pier blocks are small and provide the least amount of support needed for the majority of decks. Concrete deck footing block pros & consĬoncrete deck blocks have more cons than advantages. It takes a simple and efficient way to deck support. ![]() ![]() You can raise a deck off the blocks just as you pull on the lid to reveal the pen. The block’s concrete lugs function like the sidewalls of a pen cap. The concrete pier block has space inside for a wooden support post for a deck. Precast concrete piers must be installed on the project site using a crane or backhoe.Ĭoncrete deck blocks are really simple and resemble the cap on an inexpensive ballpoint pen. ![]() Deck blocks should not be mistaken with true concrete piers, which can either be cast in place using precut rebar-reinforced plastic forms and weigh hundreds of pounds each or which can be placed and handled by the typical person. ![]()
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