Diy Cinder Block Bench with Back

Transform your outdoor space into a cozy, functional area with a DIY cinder block bench featuring a built-in backrest. This sturdy, low-maintenance seating option is perfect for patios, gardens, or even as an additional seating area in your garage. Let's dive into the step-by-step process of creating this versatile bench that combines rustic charm with modern appeal.

Before you start, gather your materials and tools. You'll need cinder blocks, concrete mix, a trowel, a wheelbarrow or large bucket, a tape measure, a level, a rubber mallet, and safety gear including gloves and goggles. Once you have everything ready, let's begin constructing your cinder block bench with a backrest.

Planning and Foundation

Start by determining the size of your bench. A standard bench is about 4 feet long and 1.5 feet deep, but you can adjust these dimensions to fit your specific needs. Sketch a simple plan or use an online tool to visualize your bench design.

Next, prepare the base for your bench. Choose a flat, stable surface, and lay out a layer of gravel or crushed stone to create a solid foundation and promote drainage. Top the gravel with a layer of sand, ensuring it's level and compacted.

Laying the First Course

Mix your concrete according to the package instructions, and pour it into the hollow centers of the cinder blocks. This will help secure the blocks together and provide additional stability. Use a trowel to ensure the concrete is evenly distributed.

Begin laying the first course of cinder blocks along the length of your bench, starting at one end. Use a level to ensure each block is aligned and even. Tap any high spots with a rubber mallet to create a flat surface. Allow the concrete to set for at least 24 hours before proceeding.

Building the Bench Structure

For the second course, stagger the blocks to create a stronger bond. This is called "stretcher bond" and helps distribute weight evenly. Again, use a level to ensure each block is aligned and even. Continue this process, alternating the layout of each course, until you reach your desired height. Typically, a bench is around 18 inches tall.

When you're about two courses from the top, start planning the backrest. You'll need to leave a gap between the blocks to accommodate the backrest cinder blocks. Once you've reached the desired height, allow the concrete to set for another 24 hours.

Creating the Backrest

To create the backrest, you'll need to lay cinder blocks on their sides, with the hollow centers facing out. This will provide a comfortable, supportive surface for your back. Start by laying a course of blocks along the back edge of your bench, ensuring they're level and aligned with the bench structure.

For the second course of the backrest, stagger the blocks as you did with the bench structure. This will create a strong, stable backrest. Continue this process until you reach your desired height, typically around 16 inches. Allow the concrete to set for at least 24 hours.

Finishing Touches

Once the concrete has set, you can add a final layer of protection to your bench. Apply a concrete sealer or paint to prevent water damage and enhance the appearance of your bench. Allow the sealer or paint to dry completely before using your new bench.

To add a personal touch, consider planting some flowers or greenery in the hollow centers of the cinder blocks. This will not only make your bench more inviting but also help it blend seamlessly into your outdoor space.

Enjoy your new DIY cinder block bench with a built-in backrest! With a little effort and creativity, you've transformed your outdoor area into a welcoming, functional space that you and your guests will love. Happy building!