Build a Pallet Deck on Sloping Ground

Creating an outdoor living space can be a rewarding do-it-yourself project. Pallet decks offer a trendy, eco-friendly, and budget-friendly solution. However, uneven terrain can complicate the build and create an unstable foundation.

With some planning and preparation, it's possible to securely build a pallet deck even on a sloped yard. Follow these guidelines to take on the challenge of constructing a pallet oasis on irregular ground.

Choose the Right Location

When selecting where to build your pallet deck, consider several factors:

• Sunlight - Pick a sunny spot for lounging, or a shady area for an afternoon retreat. Be aware of how the sunlight shifts between seasons.
• Views - Position the deck to maximize appealing vistas of your yard or landscape. Frame views by orienting seating toward focal points.
• Access - Ensure there's a clear path to transport materials and enter the finished deck. Allow a minimum of 3 feet for steps and ramps.
• Drainage - Avoid low-lying areas that can collect rainwater runoff. Watch for signs of poor drainage like muddy patches.
• Slope - Take note of the degree of incline or decline across the site. Steep slopes over 30 degrees may require terracing or retaining walls.
• Obstacles - Check for large rocks, trees, wires or pipes that must be avoided. Transplant small trees or plants if necessary.

Identifying slope issues and obstructions early allows you to modify the plans rather than running into problems mid-build. Survey the site and take detailed measurements to understand the terrain fully.

Prepare the Site

Prepping the build site takes effort but creates a stable base for a lasting pallet structure. Here are some tips:

• Clear away any brush, weeds, roots or debris. Use loppers and a mattock for larger roots or stumps.
• Use a rake to smooth and level the surface as much as possible. Aim for maximum 1" gaps beneath a level.
• Add sand and gravel to any low spots to build them up. Compact in 6" layers with rented equipment.
• Install landscape edging around the perimeter to contain the fill material. Use spikes to secure firmly in soil.
• Compact the entire area well before building. Make several passes with a hand tamper or plate compactor.

For steep slopes, you may need to create a retaining wall on one side with bricks or timbers. Take time to get the groundwork right before assembling pallets. Rushing this stage can undermine the integrity of the entire deck.

Design and Layout

Sketching ideas and measurements will make construction easier. Keep in mind:

• Basic shape - Square, rectangle and curved edges work for small pallet decks. Combine shapes for interest.
• Access - Include stairs or a ramp if the deck sits above ground level. Minimum stair depth is 11".
• Dimensions - Allow for walking space around any seating areas. Decking requires 12-15 sq. ft per person.
• Floor Plan - Draw a bird's-eye view with measurements for reference. Show existing structures and trees.

Flexible plans let you adjust on-site for inevitable uneven spots. Just be sure to measure carefully as you build for square corners. Check proportions against the ground frequently.

Select Materials

Choosing the right pallets and supplies prevents issues down the road:

• Pallets - Source high-quality, sturdy pallets made of heat-treated hardwood. Oak withstands weather best.
• Uniformity - Match pallets for a consistent finished look. Varying wood tones can detract.
• Spare boards - Have extra slats on hand to swap damaged pieces. Estimate 10% extra for repairs.
• Fasteners - Use 3-4" exterior deck screws to secure pallets. Pre-drill holes to prevent splitting.
• Anchors - Purchase cinder blocks or metal brackets to stabilize the frame. Check requirements for sloped sites.

Inspect each pallet for broken boards, warping or mold before using. Also, confirm any paint or stain on recycled pallets is lead-free. Choose pallets in good condition for longer structural integrity.

Build the Frame

Construct a robust pallet framework as your foundation:

• Lay pallets flat in the planned shape, with slats perpendicular to the deck boards.
• Use clamps to hold pallets flush at the edges before driving screws. This prevents boards shifting.
• Secure each pallet joint together with several deck screws. Stagger screw placement to reinforce connections.
• Double or triple up pallets on edges or high-traffic areas. This distributes weight better.
• Check corners with a level often to maintain 90 degree angles. Square assembly prevents racking.

A tightly fastened perimeter provides stability. Take care to keep the frame square as you build off the work surface. Checking for level frequently ensures proper alignment.

Add Supports

Elevating the deck prevents sinking and promotes drainage. Here are some options:

• Cinder blocks - Sturdy and inexpensive, space every 2-3 feet along frame. Check local frost line depth.
• Metal brackets - Connects frame to uneven ground. Allow for height adjustments. Provide side bracing.
• Wood piers - Raises structure 1-2 feet. Pour concrete footings for each. Anchor post bases to footings.
• Screw jacks - Adjustable threaded anchors turn to stabilize and level. Use at least one per pallet.

Nestle supports into the soil for added stability. Check for level and connect outer rim pallets securely to supports as you go. Improper support spacing or attachment jeopardizes safety.

Install Decking

Now turn your pallet skeleton into a usable surface:

• Cut boards to fit snugly within the frame to cover gaps. Allow 1/4" spacing between boards for drainage.
• Pre-drill deck boards to prevent splitting when screwing down. Drill pilot holes 2" from board edges.
• Use shims underneath to level any wobbles or dips. Look for rocking in several directions.
• Stagger deck board ends between pallets for smoother look. Offset seams from pallet joints.

Taking time to level decking prevents tripping hazards. Take care securing the ends of each board into the pallet frame for safety. Improper decking installation causes instability and premature deterioration.

Finish the Surface

Apply final touches to complete your hillside oasis:

• Sand surface to smooth any rough edges. Start with 60 grit paper and work up to 220.
• Seal and stain deck to protect wood from weathering. Use opaque stains to limit sun damage.
• Add non-slip paint on rainy, steep sites. Look for grit-based coatings to resist wear.
• Install railings around edges for child safety. Space balusters less than 4" apart.
• Decorate with comfy patio furniture and potted plants. Group items for intimate spaces.

Regular sweeping and upkeep makes your pallet deck more enduring. Consider an umbrella or awning if built on an exposed southern slope. Proper finishing protects your investment for seasons of enjoyment.