How to Build an Outdoor Kitchen Island - Outdoor Cabinets

Designing and building an outdoor kitchen island can take your backyard cooking and entertaining game to a whole new level. With extra prep space, storage, and the convenience of having everything you need within arm’s reach, an outdoor kitchen island provides both form and function. Though it requires some planning and elbow grease, a DIY outdoor kitchen island is an achievable project for intermediate to advanced DIYers.

Choose a Location

When deciding where to locate your outdoor kitchen island, consider the following:

Convenience – Place the island near your outdoor dining area for easy serving, and close to your grill or smoker. Ensure there is enough space around it for safe cooking and prepping.
Traffic flow – The island should not obstruct pathways or block doorways. Allow enough space for multiple people to cook and mingle comfortably.
Surface – Opt for a level, hardscaping surface like concrete, pavers, or flagstone. This provides stability and makes the island more accessible.
Utilities – If including utilities like gas, electricity, or plumbing, plan for access to existing lines. Factor in costs for professional help if needed.
Exposure – Provide some shade for hot days, but leave room for grilling smoke ventilation. strategically place near trees or shrubs to help block wind.

Take measurements and use spray paint or masking tape to outline the footprint before constructing to visualize the size and placement.

Choose Materials

Outdoor kitchen islands are commonly made using:

Cinder blocks and wood – A budget-friendly option. Stack and adhere the blocks, then affix a plywood top. Stain or seal the wood for weather-resistance.
Stone – Materials like granite, bluestone, and limestone have a natural rustic vibe. Connect slabs with concrete or mortar for a sturdy, seamless build.
Brick – Brick offers old world charm and complements outdoor aesthetics like gardens. Use a concrete footer and mortar between layers.
Concrete – For a modern, industrial look. Build a mold and pour concrete into it, then seal and polish the surface.
Stainless steel – A commercial-grade option ideal for low maintenance. Purchase a pre-fab frame kit and customize using panels and hardware.

Consider durability, longevity, weight, cost, and the effort needed for upkeep when choosing materials. Factor in style as well – match or complement your home’s exterior.

Construct the Base

A proper base gives the island stability and prevents sinking or shifting over time. Here are some base options based on the island material:

Cinder Block

Excavate at least 6 inches deep and clear the area of debris.
Add a 2-4 inch gravel base, compacted firmly.
Lay standard 8 x 8 x 16 inch concrete cinder blocks, adhered with concrete adhesive.
Stagger seams in a running bond pattern for strength. Use half blocks as needed along the edges.
Consider inserting rebar dowels into block openings for reinforcement.
Allow the concrete adhesive to fully cure before building upwards.

Stone or Brick

Dig a trench the full footprint size, at least 12 inches deep.
Fill with a 6 inch gravel base, compacted down.
Construct a concrete footer frame around the perimeter, at least 6 inches thick.
Let the concrete footer fully cure before stacking stone or brick on top, using concrete adhesive or mortar between layers.

Concrete

Excavate at least 12 inches deep, with 4-6 inches of gravel fill compacted down.
Build a wooden form, staked firmly in place, following the planned size.
Use plastic sheeting inside the mold for easy release after curing.
Pour a 6 inch thick concrete slab and allow to fully cure for a few days before removing the form.

Add the Counter Surface

Once your base is complete, it’s time to install the countertop surface. Popular options include:

Wood planks – Use weather-resistant tongue and groove planks in cedar, cypress, or pressure-treated pine. Adhere planks to the base using construction adhesive and deck screws.
Plywood – Opt for marine-grade or exterior-rated plywood at least 3/4 inch thick. Cut pieces to size and adhere using weatherproof wood glue and galvanized nails.
Tile – Hardier than wood, ceramic or stone tile withstands heat, spills, and weather. Adhere over cement board using thinset mortar and grout between seams.
Granite – A natural stone surface that’s durable, heat-resistant, and stylish. Have countertop slab cut to size and fasten using silicon adhesive and tile spacers.
Concrete – For a seamless, modern look. Build wooden mold just over the base and pour 2-3 inch thick concrete slab. Allow to fully cure before removing form.
Stainless steel – A commercial-grade option ideal for low maintenance. Have a sheet custom cut to size and fasten to the base using brackets or adhesive.

Incorporate an overhang of 10-12 inches for seating space and to prevent water from dripping onto legs and base. Allow adhesive, mortar, or cement to fully cure before use.

Add Storage

One advantage of a kitchen island is convenient storage. Incorporate features like:

Shelving under the countertop for items like dishes, utensils, and servingware.
Cabinet doors to conceal trash cans, grilling tools, oven mitts, etc.
Drawers for storing cutlery, spices, or grill accessories.
Towel bars or racks for pot holders and aprons.
Wine glass and bottle holders built into or mounted on the sides.
Recycling and compost bins for easy access while prepping or cooking.
Upper level shelving for displaying cookbooks, plants, or decorative items.

Use weather-resistant materials like painted pine, aged galvanized metal, and stainless steel. Opt for durable hardware like galvanized nails and waterproof wood glue.

Include Other Features

Deck out your island with functional extras:

Serving trays or cutting boards – Attach or build in for extra surface space.
Trash and recycling receptacles – For easy cleanup during outdoor entertaining. Hide away in cabinets or mount to the side or under the counter.
Paper towel holders and knife blocks – Attach to the side for handy access.
Bottle openers and hooks – For hanging grilling tools like basting brushes and meat thermometers.
Ice buckets or beverage tubs – Built in or freestanding to keep drinks chilled.
Utensil drawers – Keep essential grilling tools and barbecue accessories organized yet easily accessible.
Mini fridge or cooling drawers – For keeping ingredients and beverages chilled. Requires access to electricity.
Sink with running water – A kitchen faucet provides added convenience for washing up. Requires plumbing lines.
Trash disposal – For easy cleanup of prep scraps. Requires access to plumbing and electricity.
Electrical outlets – Helpful for plugging in appliances like blenders or speakers. Have installed by a professional if wiring through stone, concrete or masonry.

Add Finishing Touches

The little details give your DIY island personality:

Stain or seal a wood countertop to protect from weathering and wear. Use an outdoor-safe polyurethane sealer.
Paint or finish a metal base or shelving to prevent rusting and add color. Use a high heat paint if near a grill or flames.
Light up your island with accent lighting or under cabinet fixtures. Install an overhead pendant lamp for after-dark use.
Plant flower boxes or herbs along the sides or corners to contribute color and fresh garnishes.
Top with decorative items like vases, napkin holders, or trays to embellish the space.
Affix a chalkboard for drink specials and grill menus during parties.

Building your own outdoor kitchen island is an intermediate but manageable weekend project for avid DIYers. With the right planning, materials, and techniques, you can craft a personalized island that offers convenience and style for all your backyard barbecuing.

FAQs about Building an Outdoor Kitchen Island

How much does it cost to build an outdoor kitchen island?

The cost can range widely, from $500-$5000+, depending on size, materials, and added features like electricity and plumbing. Budget DIY builds using wood or cinder blocks cost less than hiring out for custom stonework or cabinetry. Factor in expenses for supplies, tools, and any professional help needed.

What tools do I need to build an outdoor kitchen island?

Essential tools include:

Tape measure
Level
Shovel for excavating
Trowel for spreading adhesives or grout
Circular saw, miter saw, and/or table saw for cutting materials
Drill and drill bits
Hammer or mallet for tapping materials into place
Wrench for tightening hardware and accessories

Specialized tools like mortar mixers or concrete trowels are also helpful depending on your island design. Consider renting any large equipment not in your collection.

How long does it take to build an outdoor kitchen island?

The timeline can range from 1 intensive weekend up to several weeks for larger custom islands. Allot time for planning and gathering materials, site prep work, constructing the base, installing the counter and accessories, adding finishes, and allowing materials like concrete to fully cure. Enlist friends to help speed up the building process.

What are some design ideas for an outdoor kitchen island?

Get creative with shape, materials, and features. Oval or rounded islands save space in small backyards. Waterfalls edges are an elegant touch. Mix materials like brick sides with a stone top. Add entertaining flair with built-in beverage tubs, waterfall edges, or space for stools or chairs. Include prepping conveniences like a sink, fridge, or disposal to maximize functionality. String lights above provide ambiance for evening gatherings.

How do I make an outdoor kitchen island waterproof?

Use weather-resistant building materials like pressure treated lumber, exterior-grade plywood, or concrete. Look for patio furniture fabrics if including cushions. Seal, stain, or paint surfaces with outdoor rated polyurethane or sealants. Ensure overhangs prevent rain drips. Caulk around joints. Install weather stripping on doors or cabinets. Look for stainless, galvanized or rust resistant hardware and accessories.

Conclusion

Building your own outdoor kitchen island brings convenience and style to backyard cooking and entertaining. With the right planning and materials, you can create a personalized island tailored to your space and grilling needs. Take time to prepare the site, construct a durable base, add storage and other useful amenities, and incorporate personal flair in your design. The investment of time and effort will pay off the first time you host a backyard barbecue from the comfort of your own DIY grilling station.