Building a barbecue island is a fun DIY project that allows you to create an outdoor cooking space customized to your needs. With the right planning and materials, you can construct a sturdy and stylish BBQ island using concrete blocks. Here is a step-by-step guide on how to build a BBQ island with block.
Introduction
A BBQ island built with concrete blocks is durable, affordable, and easy to construct. Concrete blocks provide a solid base that can support the weight of a grill and serve as an excellent material for creating counter space around the grill. Building the island yourself allows you to customize the dimensions, include storage, add countertops, and incorporate design elements to match your backyard aesthetic.
Constructing a barbecue island out of concrete blocks involves basic masonry techniques. While some specialized tools and materials are required, the project can be completed by DIYers with beginner skill levels. The end result is a high-quality island that provides functionality and visual appeal to your outdoor cooking space.
Benefits of Building a BBQ Island with Block
- Durability – Concrete blocks are incredibly sturdy and stand up well to outdoor elements. They won’t rot, warp, or become damaged like wood can.
- Affordability – Concrete blocks are an budget-friendly building material for DIY projects. The total cost is relatively low compared to other backyard construction materials.
- Customization – Concrete blocks allow you to build the BBQ island to any dimensions you choose. You can include multiple layers, create counter space, and add design touches.
- Masonry skills – Constructing an island from concrete blocks is an excellent way to learn and apply basic masonry techniques like leveling, laying blocks, and finishing.
- Value addition to backyard – A concrete block BBQ island becomes a permanent backyard feature that adds functionality, character, and monetary value to your outdoor space.
Planning Your BBQ Island Design
Before gathering materials and beginning construction, invest time in planning the design and layout of your barbecue island. Consider the following factors:
Dimensions
- Measure the footprint of your grill to determine the minimum length and width needed for the island. Be sure to leave an extra 2 feet clearance on all sides.
- Standard concrete blocks are 8″ high. Decide on the number of layers – two layers is common for counter height.
- Typical depth is 24″ to provide ample counter space.
Shape
- Square or rectangular islands are most common and easiest to build.
- Consider adding a curved or angled edge for visual interest.
Material Calculations
- Estimate the number of concrete blocks needed based on the length, width, and height of your planned island.
- Stock up on additional blocks – at least 10% more than your estimate.
Functionality
- Determine placement of doors, drawers, shelves to include storage space.
- Decide on one or two countertops, an overhead shelf, side tables, etc.
Aesthetics
- Choose block color and decorative touches like brick, tile, or stone that match your landscape.
- Incorporate lighting, hardware, and accessories to complete the look.
Gather Materials and Tools
Constructing a barbecue island with concrete blocks requires standard masonry materials along with some specialty items:
Materials
- Concrete blocks
- Mortar or concrete adhesive
- Gravel or crushed stone
- Metal wall ties
- Concrete block reinforcing bars
- Patio stones or bricks for a paver base
- Countertop material – wood, tile, stone, etc.
Tools
- Mason’s trowel
- 4 foot level
- Sledgehammer
- Circular saw with concrete blade
- Drill and driver bits
- Tamper
- Shovel
- Wheelbarrow
- Gloves and eye protection
Constructing the Concrete Block Base
Follow these steps to build a solid base from concrete blocks:
Choose Location and Layout
- Mark the shape and footprint of the island with stakes and string.
- Ensure the location is flat by leveling the ground if needed.
Prepare Paver Base
- Excavate the area 4″ down.
- Fill and tamp down 2″ of gravel.
- Lay patio pavers or bricks over the gravel to create a stable surface.
Build the First Layer
- Lay out first layer of blocks according to the planned shape.
- Use a level to ensure blocks are even.
- Stagger vertical seams as you go.
- Fill vertical seams with mortar or adhesive.
Add Reinforcing Bar
- Cut reinforcing bar to fit inside block openings horizontally.
- Hammer into each opening to reinforce the layer.
Stack Additional Layers
- Apply mortar to tops of blocks.
- Stack the next layer offset from the first.
- Insert wall ties into mortar between layers.
- Check level frequently.
- Repeat until desired height is reached.
Installing the Countertops
The concrete block base provides a stable structure for installing your choice of BBQ island countertop:
Wood Countertop
- Cut wood planks or plywood to fit top dimensions.
- Secure with construction adhesive and screws through blocks.
Tile Countertop
- Mortar cement board to blocks if needed for thickness.
- Apply concrete backer board adhesive mat.
- Lay tile with thinset mortar.
Stone Countertop
- Dry fit the stone slabs on top of blocks first.
- Mortar each slab in place, checking for level.
Finishing Touches
- Apply grout between tile or stone seams.
- Seal natural stone countertops.
- Consider adding trim around the edges.
Adding Functionality and Design
The options are endless when it comes to customizing your barbecue island:
Doors and Drawers
- Use concrete blocks on their sides to create openings.
- Build doors and drawers out of wood to fit the openings.
Lighting
- Wire low-voltage landscape lights pointed up at the grill or down under cabinets.
Storage Shelving
- Install shelving between blocks or on the ends.
- Stain wood shelves to match.
Overhead Cover
- Construct a simple wood slat cover.
- Get creative with stone, stucco, or other materials.
Decorative Touches
- Add tile, brick, or stone inlays.
- Use concrete block paint or sealer.
- Add hardware and accessories.
Safety and Maintenance
- Check stability and level periodically, re-leveling blocks or pavers as needed.
- Reapply sealants annually.
- Keep grills and fire contained completely within the island area.
- Wipe spills promptly to avoid stains.
Conclusion
With proper planning and construction, a barbecue island built from concrete blocks makes a wonderfully functional and sturdy addition to your backyard. The steps outlined here provide a guide to constructing the base, installing countertops and finishes, adding storage and design elements. Be sure to adhere to safety practices. With routine care, a block BBQ island becomes a permanent focal point for outdoor cooking and entertainment for years to come.