Decking Supports for Uneven Ground

When installing decking on uneven ground, it’s essential to create a stable and level base to ensure the longevity and safety of the structure. Here are some common methods and supports used for decking on uneven ground:

Concrete joist Footings

Poured concrete bases that provide a solid and stable foundation for deck posts, concrete footings provide a solid and stable base for decking.

Pros:

• High Stability: Excellent support and stability for large or heavy decks.
• Durability: Long-lasting and resistant to shifting or settling.
• Code Compliance: Often required by building codes for elevated or attached decks.

Best For: Small & Large, permanent decks, especially those attached to a house.

Installation Process

Here’s a basic outline of the installation process:

• Mark the Deck Area: Outline the area where the deck will be installed.
• Dig shallow holes for the footings: Dig shallow holes at regular intervals.
• Lay dry Cement mix: Pour dry cement mix into the holes to create footings.
• Install Post Anchors: Place post anchors into the cement mix to hold the deck blocks.

Concrete Decking Blocks

Precast concrete Decking blocks can be used as a simple and quick solution for supporting decking.

• Ease of Use: Simple and quick to install with no curing time needed, D.I.Y friendly save on professional costs.
• Cost-Effective: Generally less expensive than poured concrete footings, no waiting for concrete to set. The whole job can be completed in the same day.
• Mobility: Easy to move and reposition if needed.

Installation Process

• Place Blocks: Lay concrete blocks on the ground in a grid pattern to support the deck framework.
• Adjust for Level: Use shims or other materials to adjust the height of the blocks and level the decking.

Installation Process

• Prepare the Ground: Level the ground as much as possible.
• Use Pavers or Concrete Blocks: Place pavers or concrete blocks directly on the ground to support the deck.
• Build Frame on Supports: Construct the decking frame on top of the pavers or blocks.

Summary

• Concrete Footings: Best for stability and durability; ideal for large, permanent decks.
• Adjustable Deck Supports: Plastic will perish over time also the base of the plastic feet are small and may sink.
• Ground Screws: Quick and minimal disturbance; Professional labour required, can be complexed if you have not had the ground checked for water pipes and cables. ideal for projects needing fast setup but not suitable for all soil types.
• Concrete Blocks: Easy and cost-effective; good for small and large freestanding decks.
• Post and Beam Construction: Strong and versatile; suitable for large decks but labour intensive with a lot of digging required.
• Floating Deck: Flexible and easy to install; best for small, low-to-ground decks using Decking blocks

Tips for Success

• Site Preparation: Clear and prepare the site by removing vegetation and debris. A layer of landscape fabric can help prevent weed growth.
• Drainage Considerations: Ensure proper drainage by sloping the ground slightly away from structures.
• Safety: Wear appropriate safety gear and consider hiring a professional if you’re unsure about any part of the process.

Each of these methods can be adapted to suit the specific requirements of your site and the design of your deck.