Outdoor cabinets made from cinder blocks can be a stylish and practical addition to any backyard or patio. Cinder block furniture is relatively easy to construct, highly customizable, and very durable. With some simple materials and basic DIY skills, you can build cinder block cabinets tailored to your exact needs and design aesthetic.
Benefits of Cinder Block Outdoor Cabinets
There are many advantages to using cinder blocks for outdoor cabinetry:
Durability
Cinder blocks are incredibly sturdy and can withstand all types of weather conditions. They won’t rot, warp, or deteriorate like wood over time. Properly constructed cinder block cabinets will last for decades.
Affordability
Cinder blocks are an affordable building material, especially compared to stone, brick, or wood. Outdoor cinder block cabinets are a budget-friendly DIY project.
Customization
The modular nature of cinder blocks makes customization simple. Cabinets can be built to any size or configuration. You can get creative with shape, color, and finishing details.
Style
Though cinder blocks have an industrial vibe, they can be incorporated into many design styles. Painted blocks blend into cottage garden themes. Raw blocks pair well with modern decor. The simple lines suit any aesthetic.
Functionality
Built-in cabinets keep outdoor spaces organized. Cinder block units have open cubbies, shelves, surfaces, and storage options. They are highly functional furniture additions.
With proper planning and construction techniques, cinder block cabinets will enhance your outdoor living area for years to come. The following steps will guide you through the process.
Getting Started with Your Cinder Block Outdoor Cabinets
Before constructing your cinder block cabinetry, some advance preparation will set you up for success:
Choose a Location
- Select a level area of the patio, lawn, or garden for cabinet placement. Avoid anywhere with poor drainage. Consider sun exposure, views, privacy and accessibility.
Decide on a Design
- Determine the size, shape and layout based on your needs and space. Include openings, surfaces, shelving, cubbies etc. Sketch plans to visualize.
Calculate Required Materials
- Factor in cinder blocks, mortar, rebar, caps, paint, and finishing details needed. Buy a bit extra to allow for errors and alterations.
Assemble Tools & Supplies
- For building, you’ll need a trowel, level, chisel, gloves, tape measure and safety equipment. Have sealant, paint, brushes, and decor ready for finishing.
Prepare the Building Site
- Clear the area of debris. Level if needed. Optimal building conditions are cool and dry.
How to Construct the Cinder Block Frame
Follow these step-by-step instructions to assemble a secure and level cinder block cabinet frame:
Mark the Outline
- Trace the footprint with spray paint or chalk based on your plans.
Lay the First Row
- Set the first course of blocks dry, spacing evenly. Level blocks and outline using a trowel.
Mix the Mortar
- Prepare mortar according to package directions. Go for a firm, moldable consistency. Only mix what you’ll use in 30 minutes.
Butter Block Seams
- Use the trowel to spread an even 1⁄2″ layer of mortar onto sides of blocks that will contact neighboring blocks.
Set the First Course
- Place blocks in outline, pressing gently to adhere mortar. Level front-to-back and side-to-side. Allow to set 24 hours before continuing.
Repeat with Each Row
- Butter seams and set blocks, checking level frequently. Stagger vertical seams and tie blocks together over openings.
Insert Rebar
- Drop rebar down grout lines to anchor every few courses. Bend to secure in place.
Fill Mortar Gaps
- Pack any gaps with mortar to improve structural integrity. Take care not to smear.
Allow Proper Curing
- Let mortar cure fully over several days before finishing or placing weight on cabinets.
Finishing and Decorating Cinder Block Cabinets
Applying finishes and styling your cinder block cabinetry completes the project. Get creative with these possibilities:
Smooth and Paint
- If a smooth finish is desired, fill holes with mortar and smooth with trowel. Paint with exterior masonry paint using brush, roller or sprayer.
Add Contrasting Mortar
- For color, tint mortar to contrast blocks. Consider accenting openings or edges.
Seal and Protect
- Apply waterproof concrete sealer to prevent damage and improve aesthetics. Re-seal every 1-2 years.
Add Shelves
- Set concrete pavers or boards into cabinet openings to create shelves at desired heights.
Accent with Tile
- Glue ceramic tile, glass tile, or natural stone to surfaces for texture. Grout as desired.
Incorporate Planters
- Nestle planters into cabinet tops or cubbies. Use drainage trays to catch overflow.
Style with Decor
- Style cabinet tops with containers, potted plants, lanterns, outdoor dinnerware, etc.
Finish Edges and Caps
- Glue flat stones or pavers to side edges for a finished look. Cap top edges the same way.
Add Lighting
- Install battery-operated or solar pathway lights along top edges or interior shelves for a gorgeous glow.
Consider Further Protection
- Protect cabinets from intense sun and rain exposure by adding an awning overhead.
Let creativity guide you in designing your cinder block cabinet finishes. The variations are endless.
Helpful Tips for Success with Cinder Block Cabinet Projects
Keep these extra cinder block construction tips in mind for a flawless finished project:
- Check level and alignment frequently as you build. Correct any issues as you go.
- Wear gloves and goggles when cutting any materials. Use sharp chisels and masonry blades.
- Account for mortar drying time in your timeline. Full curing can take several days.
- Lift blocks carefully to avoid scraped knuckles. Use a small trowel to detach stuck blocks.
- Ensure cabinets sit on solid, well-draining ground. Installation over concrete is ideal.
- Arrange any plumbing or electrical before building over them. Coordinate access.
- Use sanded mortar for a smooth finish. Unsanded mortar gives a rough texture.
- Mix mortar stiffly at first, adding water slowly until optimal consistency is reached.
- Butter both vertical and horizontal seams between blocks to maximize adhesion.
- Avoid overly wet mortar that will slide and prevent precise block placement.
- Check that cabinets are completely level from all angles. Make any necessary adjustments.
Frequently Asked Questions About Cinder Block Outdoor Cabinets
Some common questions about cinder block cabinet construction and design include:
How many cinder blocks are needed?
- Measure the total cubic feet of cabinet space to determine block requirements. Standard 8 x 8 x 16″ blocks are approx. .83 cubic ft. Allow 15% extra.
What type of mortar should be used?
- Opt for high-strength outdoor masonry mortar meeting ASTM C270 specs. Type S mortar is a good choice.
Can the cinder block cabinets be built on grass?
- It’s best to pour a concrete slab, gravel base, or patio pavers to provide a stable, level foundation.
How long does mortar take to fully cure?
- Expect 72 hours curing time between mortar applications. Final cure times are 3-7 days for handling furniture.
Should the cabinets be sealed?
- Yes, sealing the blocks helps protect from moisture damage and provides a more polished look. Use silane-siloxane sealer.
Can the cinder block furniture stay outside permanently?
- Yes, with proper construction and sealing the cabinets can remain outdoors indefinitely through all seasons.
What size cinder blocks should be used?
- Standard 8 x 8 x 16” blocks are typical. Use higher 10”+ blocks if a taller cabinet height is desired.
How are the cinder block cabinets attached together?
- No attachment is needed. The mortar bonds the blocks together once fully set up and cured.
Conclusion
Building durable and stylish cinder block cabinets is an easy backyard DIY project. By following the construction steps and design tips outlined above, you can create custom cinder block furniture to enhance your patio space. Tap into your creativity to design cabinets perfect for your needs and style. With the right materials and techniques, your cinder block cabinetry will last for many years to come. Be sure to select a flat area, use quality mortar, allow proper curing time, and apply a protective sealant to get the most enjoyment from your new cinder block cabinets.