How to Make Concrete Molds from Wood

A concrete mold is a negative impression of the desired shape that you want your concrete to take. To make a mold, you will need some wood, screws, and silicone caulk. You will also need a drill, saw, and clamps.

First, cut your wood into pieces that will fit together to form the outside of the mold. Next, use screws to secure the pieces of wood together. Make sure that the screws are long enough to go through all of the layers of wood.

Then, use silicone caulk to seal any gaps between the pieces of wood. Finally, clamp the mold together so that it holds its shape while you pour in the concrete.

How to Make a Wooden Mold For Concrete Pavers Like a Pro (S1 Ep18)

  • Decide on the size and shape of your mold
  • You can use a saw to cut your mold out of wood, or you can use a drill to make holes in the wood that you will later connect with string or wire
  • If you are using a saw, make sure to create smooth, straight cuts so that your mold will be easy to release from the concrete once it has set
  • Once you have your mold cut out, use sandpaper to smooth any rough edges
  • This will help prevent the concrete from cracking when you remove it from the mold
  • To prepare for pouring the concrete, line the inside of the mold with plastic sheeting or wax paper
  • This will help release the concrete more easily once it has set up
  • Mix your concrete according to the instructions on the package and pour it into your prepared mold
  • Tap the sides of the mold gently as you pour to help settle any air bubbles that might be present in the mix
  • 6 Allow your concrete to set up according to package directions before removing it from its mold

How to Make Concrete Molds from Plastic

Concrete molds are a great way to create unique and customized concrete projects. and using plastic to make them is a simple and cost-effective way to do it! Here’s how:

1. Start by finding a plastic container that you’d like to use as your mold. Make sure it’s clean and dry before you begin. 2. Next, trace the shape of your container onto a piece of cardboard or construction paper.

Then, cut out the template. 3. Use the template to cut out pieces of plastic sheeting that will fit snugly inside your mold. You may need to piece together several smaller pieces to achieve the desired size and shape.

4. Once you have all of your plastic pieces cut out, tape them together securely along the seams with duct tape or another strong adhesive. 5. Now it’s time to pour your concrete! Mix up a small batch according to the instructions on the package, being careful not to make it too thick or too thin.

Slowly pour it into your mold, filling it until it’s level with the top edge . If you want, you can add color pigment to your concrete mix at this point for added interest . Just follow the package directions .

6 Allow your concrete project to cure for at least 24 hours before removing it from the mold . Gently pry it loose from any sharp edges , then carefully turn it over and tap on the bottom of the mold until your project slides out . If necessary , trim away any excess plastic with a utility knife .

How to Make Concrete Molds from Wood


Does Concrete Stick to Wood?

If you’re looking to adhere concrete to wood, you’re in luck – it’s a relatively simple process that can be accomplished with the right tools and materials. First, you’ll need to roughen up the surface of the wood so that the concrete has something to grip onto. This can be done with a wire brush or sandpaper.

Once the wood is prepped, apply a layer of bonding agent to both surfaces and allow it to dry according to the manufacturer’s instructions. Next, mix your concrete according to its instructions – typically, this will involve adding water to a dry mix and stirring until it reaches a slurry-like consistency. Once your concrete is mixed, apply it to the wood surface using a trowel or putty knife, spreading it into an even layer.

Allow the concrete to cure for 24-48 hours before putting any weight on it or subjecting it to stressors like water or heat. And that’s all there is to it! With just a little bit of prep work and some patience, you can easily adhere concrete to wood surfaces.

What Material is Best for a Concrete Mold?

There are a few different materials that can be used for concrete molds, but the best material to use is polyurethane. Polyurethane is a strong and durable material that won’t break easily. It’s also easy to release the concrete from the mold, so you won’t have any problems getting your project out.

How Do You Make Concrete Molds And Forms?

If you’re looking to create concrete molds and forms, there are a few things you’ll need to keep in mind. First, you’ll need to choose the right material for your mold. There are many different types of materials that can be used, but some are better suited for certain applications than others.

Second, you’ll need to consider the size and shape of your mold. This will determine how much concrete you’ll need, as well as the amount of time it will take to set up your mold. Finally, you’ll want to think about how you’re going to remove your concrete form once it’s set.

There are a few different options available, so make sure you choose the one that best suits your needs.

Can You Use Plywood As Concrete Mold?

Plywood is an inexpensive and versatile material that can be used for a variety of purposes, including as a concrete mold. While plywood is not typically used as a stand-alone mold for concrete, it can be used in conjunction with other materials to create a mold. When using plywood as part of a concrete mold, it is important to select the right type of plywood and to properly prepare the surface before pouring the concrete.

There are two main types of plywood: hardwood and softwood. Hardwood plywood is denser and more durable than softwood, making it a better choice for use as a concrete mold. Softwood plywood is more likely to warp or break when exposed to moisture, so it should only be used if absolutely necessary.

The surface of the plywood must also be smooth in order for the concrete to release easily from the mold. Any roughness on the surface of the ply wood will transfer to the finished product. To prepare Ply wood for use as part of a concrete mold, start by sanding down any rough spots on the surface.

Then, apply a coat of sealant or primer to help protect the wood from moisture damage. Once dry, you’re ready to start creating your custom concrete molds!


Making concrete molds from wood is a simple process that can be done at home with a few tools and materials. First, create a negative mold of the desired shape out of plywood or another sturdy material. Next, line the mold with release agent such as cooking spray or petroleum jelly.

Then, mix your concrete according to the instructions on the package and pour it into the mold. Allow the concrete to cure for 24 hours before removing it from the mold.

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