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For any type of concrete construction, formwork is essential. Formwork has been utilised for thousands of years across the globe. Before the formwork method, most of the concrete structures had poor tensile strength because they could not properly make use of the concrete's ability to resist compressive loads. However, nowadays, you can see how formwork has come a long way. For instance, we've got the slab formwork which is used to build concrete slabs.

There are various types of formwork, and the type you used depends on the formwork material and the structural element that is being built. So, if you are looking for the right slab formwork company to assist you with your project, iSeekplant can help you out. Our database provides a large network of suppliers to choose from, so finding the right slab formwork, wall formwork, formwork hire, formwork props or column formwork is a breeze.

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For any type of concrete construction, formwork is essential. Formwork has been utilised for thousands of years across the globe. Before the formwork method, most of the concrete structures had poor tensile strength because they could not properly make use of the concrete's ability to resist compressive loads. However, nowadays, you can see how formwork has come a long way. For instance, we've got the slab formwork which is used to build concrete slabs.

There are various types of formwork, and the type you used depends on the formwork material and the structural element that is being built. So, if you are looking for the right slab formwork company to assist you with your project, iSeekplant can help you out. Our database provides a large network of suppliers to choose from, so finding the right slab formwork, wall formwork, formwork hire, formwork props or column formwork is a breeze.

Slab Formwork FAQs

Here's some tips & frequently asked questions on how to find the right slab formwork for your job

1. What is slab formwork?

Slab formwork is used when suspended slabs are not directly supported by the ground. This type of formwork supports the concrete's weight during the curing process and the positioning of the concrete slab on permanent supports. The vertical stringers that support the horizontal joists on the slab formwork are supported by a base known as 'sills'. Sills are commonly made from wood or metal. The horizontal joists create a flat surface where plywood, steel sheets, fibreglass, aluminium or timber is used as a base for the concrete to be poured onto.

Most slab formworks are reusable, and when concrete has been set, they can be removed through stripping. Reusable formworks are known as panel forms, and non-usable formworks are called stationary forms. Thus, suspended slab formwork will involve formwork panels, joists, stringers and other supporting materials. All of these are used to help the concrete to be poured and set above the ground.

Furthermore, slab formwork is known for being versatile. This type of formwork can build horizontal and curved surfaces and even diagonal and vertical concrete structures. It is modular and customisable, which is why it's the perfect formwork for architects who want to create various concrete designs and shapes.

 

2. How is slab formwork calculated?

When it comes to construction that involves concrete, you know that you will need formwork to hold everything in place while it hardens. For this reason, you should learn how to calculate formwork so that you can order sufficient materials and stick to your project's budget.

To help you out, one of the basic ways of measuring your formwork is by area. This is the area that will be directly in contact with the concrete. It should be in square metres or square millimetres for the best accuracy. Measuring the area is done by multiplying the perimeter by the height of your structure. Remember also that each side of the concrete should have its own formwork calculation.

For slab formwork, measuring will also require calculating the area. So, if you are laying a concrete driveway or other base or flat surface, make sure to calculate the formwork area. How can this be done? Here are some things you should consider:

  • If you have square and rectangular forms, to know how much formwork you'll need, you'll have to multiply the length with the width.
  • For those with circular forms, the formula will be multiplying the square of the radius by pi.
  • On the one hand, if you have irregular shapes, you can calculate the complex shapes by breaking them into simpler rectangles and squares. After doing this, you can then add all of the total surface areas.

Here are the steps you should follow to calculate the formwork: 1. Calculate the Concrete Perimeter To get the perimeter, all you have to do is add the lengths of the four sides, and then add an extra 0.20 m for the overlapping of joints.

Formula: P = a + b + c + d + 0.20

2. Calculate the Concrete Surface Area If you want to calculate the surface area of the slab shuttering, you should multiply the perimeter by the column's height.

Formula: A = P x height

3. Multiply by Your Preferred Number of Columns For example, you are building 10 columns. So, to get the total area of all of the concrete columns, below is the formula you should use.

Formula: Total Area = A x number of columns

4. Calculate the Concrete Slab Surface Area You should calculate the surface area of the concrete slab you will be using.

Formula: Concrete Slab Area = length x width

5. Calculate How Much Concrete Slab is Needed To get the amount of slab required, you'll need to divide the total concrete surface area by the surface area of one concrete slab.

Formula: Concrete Slab needed = Total area / Concrete Slab Area

 

3. Where are iSeekplant's slab formwork companies located?

If you want only the most trustworthy slab formwork companies, you can rely on us at iSeekplant. With our nationwide network of slab formwork companies, you'll find the right match for your construction project. We have suppliers across the country in all the capital cities like Brisbane, Sydney, Canberra, Melbourne, Darwin, Perth and Adelaide. We also offer slab formwork in all major towns and cities from Townsville down to the Sunshine Coast, Gold Coast, Newcastle, Ballarat and Bendigo.

 

4. How to use iSeekplant to find a slab formwork contractor?

Choosing an effective slab formwork contractor is a no-brainer with iSeekplant. Just do a search on our website or use our Get a Quote tool and we'll do all the hard work for you. Just tell us what you need, and we'll have suitable suppliers contacting you within hours with their best rates. Get in touch with us now by calling 1300 691 912 or emailing projects@iseekplant.com.au.

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Rated 4.8 by 116 Customer Reviews