Built-In Deck Seating Construction

Deck built-in seats are integrated benches, planters, or other seating structures that are permanently affixed to the deck itself. Unlike freestanding chairs or tables, built-in deck seating literally becomes part of the deck, maximizing space efficiency while encouraging social gatherings.

With proper planning and construction, built-in deck seating can transform an ordinary deck into a comfortable, aesthetically-pleasing outdoor living area.

Planning Your Built-In Deck Seats

The planning stage is crucial for ensuring your built-in deck seating complements your space functionally and visually. Carefully consider the following factors:

Choosing the Right Materials

While wood is the most popular choice, you can construct built-in deck seating from a variety of materials:

• Cedar, redwood, or pressure-treated pine wood is naturally rot-resistant and attractive for deck seating.
• Composite wood resists moisture, requires little maintenance, and comes in various colors.
• Stone, brick, concrete, or ceramic tile is extremely durable but more difficult to install.
• Metal and plastic offer sleek, contemporary options for deck seating.

Design Considerations

You'll also want to think about size, placement, functionality and visual appeal when planning your built-in deck seating design:

• Size and Shape: Scale seating proportionately to your deck size and shape. Curved benches utilize corners efficiently while straight benches maximize seating capacity.
• Placement: Situate seating to define spaces, take advantage of views, or cluster around a focal point like a fire pit.
• Comfort and Ergonomics: Benches should be 16-18 inches deep and 20-24 inches high for optimal comfort.

Framing and Building Deck Seating

Proper framing and construction is critical for safety and durability. Consider the following techniques:

Framing Methods

Deck seating can be framed in several ways:

• Attach lateral 2x4 braces between vertical 4x4 posts sunk in concrete piers.
• Bolt pressure-treated lumber or steel pipe legs to the underside.
• Cantilever overhanging benches off ledger boards lag-bolted to rim joists.

Joinery Techniques

Secure bench slats using weather-resistant joinery:

• Screw slats into ledgers or Cleat boards.
• Use stainless steel brackets.
• Cut slats to interlock with grooves routed into side joists.

Waterproofing and Flashing

Prevent water damage and rotting by:

• Applying flashing along the intersections of seating and decking.
• Sealing wood with protective stains and finishes.
• Installing drip edges so water runs off framing.

Installing Deck Seating

When your framing is complete, installing deck seating involves three main steps:

Prepping and Fastening

• Drill drainage holes in support structures as needed.
• Attach water-resistant, closed cell foam before fastening slats.
• Fasten slats with exterior-grade screws, spaced 4-6 inches apart across each joist.

Integrating with Decking

• Match elevation of seating with deck floor height.
• Miter edges of deck boards for seamless transitions.
• Incorporate matching or coordinating decking materials.

Completing Final Details

• Sand and finish seating slats and decking consistently.
• Caulk gaps for watertight joints using exterior sealant.
• Add backless throw pillows for comfort and accent colors.

Customizing Your Built-In Benches

Personalize your seating with built-in storage, planters, or other unique touches:

Adding Cushions

• Measure precisely before having weather-resistant cushions custom-made.
• Opt for easily removable backless cushions.
• Choose fabrics that shed moisture and resist mildew.

Incorporating Storage

• Build hinged lids over bench cavities for hidden storage.
• Use storage benches to organize outdoor furniture cushions and accessories.
• Line storage areas with moisture barriers and drain holes.

Attaching Tables or Shelves

• Secure weatherproof folding side tables with integrated hardware.
• Affix floating shelves for plants, decor items, or extra storage.
• Ensure attachments don't compromise bench stability or safety.

Maintaining Your Integrated Seating

With proper care, your built-in seating can last for decades:

Protecting Wood Finishes

• Reapply protective sealants as needed, at least every 2-3 years.
• Keep wood free of standing moisture and debris to prevent premature rotting.
• Cover benches during construction or remodeling to avoid incidental damage.

Repairing Cracks and Damage

• Fill small gaps between slats using exterior wood filler.
• Replace severely damaged or rotting slats and structural members as needed.
• Use touch-up markers and stains for minor aesthetic damage.

Replacing Worn Cushions

• Expect to replace cushion covers every 3-5 years.
• Swap out waterlogged, mildewed or deteriorating foam as needed.
• Use original cushion dimensions when ordering replacements.

Costs of Built-In Deck Seating

Prices vary based on materials, complexity of design, and whether you DIY or hire a professional:

Material Expenses

• Pressure-treated pine lumber: $3-4/linear foot
• Cedar or redwood: $9-12/linear foot
• Composite wood: $20-25/linear foot
• Stone, brick, or tile: $25-50/square foot

Labor Pricing

• Basic bench with backing: $50-100/linear foot
• Built-in storage or integrated planters: $100-200/linear foot
• Complex multi-level designs: $200-400/linear foot

Common Problems and Solutions

Avoid these pitfalls with smart design and preventative maintenance:

Preventing Rot and Deterioration

• Use naturally rot-resistant cedar, redwood, or pressure-treated lumber.
• Apply protective finishes and routinely re-apply as needed.
• Incorporate drip edges so water drains properly.

Fixing Unstable Benches

• Check for loose fasteners securing structural framing.
• Shim and level uneven piers or posts.
• Replace deteriorating framing materials as needed.

Troubleshooting Comfort Issues

• Verify dimensions match ergonomic guidelines.
• Angle seat slightly to allow drainage.
• Add custom cushions for extra comfort.

Built-In Seating Ideas and Inspiration

Explore these popular built-in deck seating options to spark your creativity:

Curved Bench Designs

• Continuous curving benches utilize corners efficiently.
• Soft curves feel more welcoming and organic.
• Accent inward or outward-facing curves with contrasting colors.

Two-Level Layouts

• Upper and lower benches frame spaces beautifully.
• Vary seating heights for visual interest.
• Connect upper and lower levels with integrated steps or planters.

Fire Pit Seating

• Circular benches around a fire pit encourage conversation.
• Center fire columns double as tables.
• Bluestone or stone seating withstands fire pit heat.

The perfect integration of built-in deck seating requires careful planning, construction, and customization tailored to your space. But the end result delivers an inviting, comfortable area primed for relaxation or social gatherings with family and friends. Maintain your built-in benches properly, and they'll provide enduring, high-quality seating options for decades of happy memories outdoors.

Now that you know the ins and outs of building your own integrated deck seating, you can confidently plan and construct custom benches uniquely suited to your space and needs.