Concrete Slab on Metal Deck

A concrete slab on metal deck is a large, flat piece of concrete that is poured over a metal deck. The concrete forms a waterproof barrier between the deck and the ground, protecting the deck from water damage and soil erosion. Slabs are often used as a foundation for raised decks or patio areas. This article will show you how to install a concrete slab on a metal deck.

Concrete slab

A concrete slab is a large, rectangular sheet of concrete that is typically between 6 and 12 feet wide and 8 to 12 feet long. It is usually poured into one piece and then ready for use. Once it has been poured, the slab needs to be cured for two weeks in order to allow the concrete to harden.

Metal Deck

A metal deck is a type of outdoor flooring made from thin sheets of metal that are typically nailed or screwed to concrete or wooden boards. Metal decks are popular in climates where weather conditions can cause moisture to seep through the wood or concrete below, and they’re also popular in areas where there’s a concern about soil erosion.

It is a type of flooring that is made from a variety of metals, including stainless steel, aluminum, and copper. These decks are popular because they are strong and durable. They also have a variety of colors and patterns, which can make them look stylish.

Concrete on metal deck Calculator

A concrete slab on metal deck looks great and is strong, but you need to be aware of a few things before you install it. The most important thing to consider is the weight of the concrete and the weight of the metal deck. You also need to make sure that the concrete is level and that there are no cracks or voids in it. If there are any problems with the concrete, you may need to have it fixed before you can put the deck on it.

Installation of a Concrete Slab on Metal Deck

The installation of a concrete slab on a metal deck can be a challenging task, but with the help of an experienced contractor, the process can be easily completed. When choosing a contractor, it is important to ensure that they have experience installing concrete slabs on metal decks and are familiar with the necessary tools and techniques.

Tools and Materials Required for Installation

  • Circular saw
  • Miter saw
  • Pole saw
  • Tape measure
  • Drill bit sizes are dependent on the type of screws you are using (counter sunk, pilot hole, etc.)
  • Concrete screws, anchors, and sealant (if used)
  • Metal decking screws, anchors, and sealant (if using)
  • Circular saw blade lubricant
  • Lawn mower blade

Deck Preparation

The first step in the installation process is to prepare the deck surface. This involves removing any existing paint or other coating, and then cleaning the surface with a suitable cleaner. Once the surface is clean, dry it thoroughly using a cloth or sandpaper. Then, apply a layer of primer to the surface using a sprayer. Make sure that the primer is well wetted before applying, in order to create an even finish.

Next, apply a layer of concrete sealer to the surface using a roller. The sealer should be applied in an even coat over the entire surface. Once it has been applied, wait for it to dry completely before proceeding to the next step.

Concrete Slab Installation

  • Step One: Measure your decking and cut the lumber to the correct length. Make sure the lumber is at least 2x the width of the concrete slab you plan to install. Cut the lumber to length and make any necessary cuts to fit around your railing and other obstructions. If you are installing a brick or stone edge around your deck, be sure to account for this when cutting the lumber.
  • Step Two: Assemble your frame. Start by bolting the two end pieces together with 4x4s. Then attach the middle piece using 2x4s and joists. Finally, bolt on the front and back pieces. If you are using a metal deck, you will need to predrill and screw in decking screws into the deck. Once the frame is assembled, trim the excess lumber.
  • Step Three: Assemble your concrete slab. Start by pouring a layer of concrete at least 3x the thickness of your decking. Make sure the entire slab is level and smooth before continuing. Pour the second layer of concrete on top and smooth out any bumps or cracks. Make sure the edges of your slab are flush with the edges of your frame. If you are using a metal deck, you will need to predrill and screw in decking screws into the deck. Once the slab is assembled, trim the excess lumber.
  • Step Four: Cover your concrete slab with a layer of fresh gravel or sand. This will provide protection from moisture and pests while it sets. Leave your concrete slab uncovered for at least two weekdays to allow it to cure completely (usually takes about four weekdays). If you are using metal decking screws, be sure to apply sealant before covering your slab.
  • Step Five: Enjoy your new concrete slab on metal deck!

Benefits of installing a concrete slab on metal deck

There are many benefits to installing a concrete slab on metal deck. First and foremost, the concrete slab on metal deck will provide extra support for the metal deck. This extra support will help prevent any potential sag in the metal decking and keep it in good condition.

Additionally, a concrete slab on metal deck is a very secure option because it is highly resistant to weathering and rust. This means that your deck will stay looking great for longer periods of time.

Advantages of a Concrete Slab on Metal Deck

There are many advantages to installing a concrete slab on metal decking. One of the most common reasons people choose to do this is because concrete is a more stable surface than traditional wood or plastic decks. Additionally, concrete is often less expensive and easier to maintain than other types of decks.

  • One of the biggest advantages of using a concrete slab on metal deck is that it can act as a natural drainage layer for your deck. This means that any water that falls on the deck will be absorbed by the slab and then released through the bottom of the slab into the ground below. This is an important feature if you live in an area that experiences heavy rains or if you have any plants or flowers on your deck.
  • Another advantage of using a concrete slab on metal deck is that it can be painted or stained to match your existing decking. This means that you don’t have to replace your entire deck if you want to change the look of it.
  • In addition, concrete slab on metal decks are often easier to repair than traditional decks. If there is a hole in your deck, for example, you can easily repair it by filling the hole with concrete and then covering it with a new piece of decking.

Disadvantages of a Concrete Slab on Metal Deck

There are several disadvantages of installing a concrete slab on metal deck.

  • Firstly, the metal can corrode if the concrete is not properly sealed.
  • Secondly, the weight of the concrete can cause metal fatigue, which can lead to Structural failure.
  • Finally, if the concrete is installed improperly, moisture can seep through the deck surface and cause rot or decay.

Cost of a Concrete Slab on Metal Deck

Adding a concrete slab to an existing metal deck can dramatically improve the aesthetics and functionality of the deck. The cost of a concrete slab will vary depending on the type of metal deck, but a typical cost range would be between $2,000 and $5,000. 

Concrete slab on metal deck
Concrete Slab

Concrete slab on metal deck can be a difficult task to complete, but with the right tools and advice, it can be done successfully. Make sure to hire a professional if you don’t have the experience or expertise to do this yourself. As long as you take care while working on the concrete slab, your deck will look great once completed.

What is slab on metal deck?

A slab on metal deck is a type of floor that is made out of concrete and steel. It is a popular choice for commercial buildings because it is strong and versatile. The concrete slab can be easily installed on top of a metal deck, and the deck can then be used as the flooring in a building. The steel supports the weight of the concrete, so the floor doesn’t need to be reinforced. This makes the slab on metal deck less expensive and easier to install than other types of floors.

How far can you span metal decking for concrete?

If you’re considering using metal decking for your next concrete project, be aware that the span is limited. In fact, the American Wood Council (AWC) recommends that the maximum unsupported span for metal decks without post-tensioning is 12 feet. If you need to span longer than 12 feet, you’ll need to use post-tensioning.

How thick is concrete metal deck?

When choosing a concrete slab for a metal deck, it is important to consider the thickness of the metal deck. Thicker decks will require a thicker slab than thinner decks. The typical thickness for a metal deck is 3/4 inches. If the deck is too thin, the concrete may not hold up under the weight of the metal. Additionally, if the metal is too thin, it may corrode and fail over time.

Can I pour concrete over metal?

If you’re thinking of pouring concrete over a metal deck, there are a few things to keep in mind. First, make sure that the metal is thick enough to support the weight of the concrete. Second, make sure that the concrete has a good bond to the metal. Third, make sure that the metal is properly prepped before you pour it. Fourth, be aware of any potential hazards that may be present when pouring concrete over a metal deck.