diy bench with cinder blocks

DIY Cinder Block Bench

By James Anderson
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Transform your outdoor space into a functional and stylish haven with a DIY bench made from cinder blocks. This eco-friendly and budget-friendly project is not only easy to build but also adds a unique touch to your garden, patio, or balcony. Let's dive into the step-by-step process of creating this versatile piece of furniture.

Cinder blocks, also known as concrete blocks, are durable, affordable, and widely available. They come in various sizes and styles, allowing you to customize your bench to suit your space and preferences. Plus, they require minimal maintenance, making them an excellent choice for long-lasting outdoor furniture.

Gathering Materials and Tools

Before you start, ensure you have all the necessary materials and tools at hand. Here's a list to help you prepare:

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  • Cinder blocks (12-15 blocks, depending on the bench size)
  • Concrete or mortar mix
  • Gravel or crushed stone
  • Water
  • Trowel
  • Gloves
  • Safety glasses
  • Tape measure
  • Level
  • Shovel
  • Wheelbarrow

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Choosing the Right Location

Select a level and stable area for your bench. Avoid placing it on soft or uneven ground, as this can cause the bench to wobble or sink over time. If your chosen spot is not level, you may need to create a base using gravel or crushed stone.

Once you've found the perfect location, measure and mark out the dimensions of your bench. A standard bench is about 48 inches long and 18 inches deep, but you can adjust these measurements to fit your space and needs.

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Preparing the Base

Begin by laying out a layer of gravel or crushed stone to a depth of about 2-3 inches. This will help promote drainage and prevent the bench from settling into the ground. Use a level to ensure the base is even and smooth.

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Next, mix your concrete or mortar according to the package instructions. Pour the mixture over the gravel base, spreading it evenly to create a solid foundation for your bench. Allow the concrete to cure for at least 24 hours before proceeding with the next steps.

Building the Bench Structure

Now that you have a stable base, it's time to start stacking the cinder blocks to create the bench structure. For a standard bench, you'll need three rows of blocks: one for the seat and two for the backrest.

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Start by placing three cinder blocks in a row for the seat. Ensure they are level and evenly spaced. Then, stack two more blocks on top of the outer blocks to create the backrest. Repeat this process to create the second and third sections of the bench, ensuring each section is level and aligned with the others.

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Securing the Blocks

To secure the blocks together and prevent them from shifting, you'll need to fill the hollow centers with concrete or mortar. Use a trowel to fill each hole about halfway, allowing the mixture to settle and create a strong bond between the blocks.

Once you've filled the holes, use a level to ensure the bench remains even and stable. Allow the concrete to cure for at least 24 hours before using your new DIY cinder block bench.

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Finishing Touches

While cinder blocks provide a rugged, industrial look, you can enhance the appearance of your bench by adding a few finishing touches. Consider painting the blocks to match your outdoor decor or adding cushions and pillows for added comfort.

You can also incorporate plants into your design by placing pots or planters on top of the bench or between the blocks. This will not only make your bench more inviting but also help create a lush, green space in your outdoor area.

Enjoy your new DIY cinder block bench and watch as it becomes the focal point of your outdoor space. With its durable construction and customizable design, this versatile piece of furniture is sure to serve you well for years to come. Happy building!

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