CONCRETE DECK PIERS PLUS
For example, the size of the deck plus whether it has a roof will change the depth of the footing.Īlso, the soil type will alter the width of the deck footing. So many factors come into designing the size of deck footings that there will never be one size fits all deck footing applications. As you can imagine, the performance requirements exist to keep you, your family and friends safe.
CONCRETE DECK PIERS CODE
All ground conditions vary and as such the National Construction Code of Australia (formerly the Building Code of Australia) outlines the different types of soils and the performance requirements for each type of soil conditions.
Please note: this is a non-exhaustive list be sure to match your personal protective equipment to the job at hand.Warning about your deck footings: You MUST, and I mean MUST engage a structural engineer or licensed builder to get the exact size for your deck footings. Number of people requiredġ person or 2 people to simplify the task Tools and equipment The work should be done over two days and you will have to wait for the concrete to set. Time requiredĭepends on the number of footings, their volume and your chosen method. The main skills involve mixing concrete or using a cement mixer, taking accurate measurements, and handling a shovel or auger. However, be sure to work methodically and to follow all steps carefully. Pouring a concrete deck footing can be done by any DIYer. If the level of your footing doesn't allow this, widen the area around the footings by a few centimetres. Ideally, the footing should protrude slightly from the ground to stop groundwater from rising. More likely than not, you won't be able to pour all your footings at once. Be sure to check that that everything lines up perfectly, especially where the joists will lie.The tube should protrude from the ground and all the forms should sit level with each other. This part should be placed on the base you just poured while it is still wet.This will make up the main part of the form. Then cut a length of about 300 to 350 mm from your ø150 to 200 mm form.Even out the concrete with a trowel and place two or three pieces of re-bar in the centre. Pour concrete up to the edge of the form and tamp down as best as possible.To create a wider base, cut 10 cm from your PVC or cardboard ø250 mm form and place it at the bottom of a hole with coarse gravel at the bottom.Bear in mind that a power auger does require some machine-handling experience – especially if you fear it might get stuck on a boulder or stone.įootings work by compression and a larger base will absorb the load more easily. After pouring the concrete, you can cut away the top part of the cardboard and break it down for recycling as opposed to getting lumbered with PVC to get rid of.ĭepending on the size of the footings, you can use a post hole digger, or electric or petrol post hole auger to dig the holes. The advantage of these forms is that they can be left in place where they won't be seen. Cardboard tubes for concrete can be purchased in lengths of two to three metres and are easy to cut down to size using a handsaw. These lightweight and inexpensive forms are made of strengthened cardboard and come in a range of sizes and shapes including squares. It's also possible to use cardboard form tubes. Wood can be used to make square forms while wax-coated PVC tubes will create circular forms. Concrete footings: tips to follow and mistakes to avoid.Insert your forms and pour the concrete.Analyse the soil before pouring the footings.the decking extends beyond the front wall of your home.the decking covers more than 50% of your garden along with any other outdoor buildings.the decking height is over 30 cm from the ground.For example, you will need permission for decking in the following scenarios: Please note that, depending on the type of structure you want to install, you may require planning permission. The number of footings you need should be calculated according to the total weight they will have to support. Concrete deck footings can be used to secure your structure while also protecting it from groundwater.
CONCRETE DECK PIERS INSTALL
If you're hoping to install a garden shed, prefabricated garage, pergola or greenhouse, or need a solid base for your decking joists, you might find yourself having to pour concrete footings.
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