6 Best Furniture Leveling Shims For Uneven Pool Decks

Nothing ruins a relaxing afternoon by the pool faster than a wobbling lounger that tilts with every movement. Uneven decking is a common reality for outdoor spaces, often caused by shifting pavers, drainage slopes, or natural settling over time. Properly leveling your furniture ensures both longevity for your gear and, more importantly, a stable, stress-free experience during poolside downtime.

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Wobble Wedges: The Most Versatile Leveling Shim

Wobble Wedges are the quintessential problem solvers for anyone dealing with miscellaneous furniture legs. Their patented interlocking ridges allow for precise stacking, meaning they can accommodate tiny gaps or significant height discrepancies with ease. Because they are molded from high-impact plastic, they handle moisture exceptionally well without rotting or compressing like wooden alternatives.

These are the go-to choice if the poolside setup includes a variety of furniture types, from side tables to chairs with unique leg shapes. Since they come in different sizes and rigidities, it is easy to keep a variety pack on hand for unexpected wobbles. For the homeowner who values a universal kit that can handle anything from a bistro table to a heavy sun lounger, these are an essential addition to the maintenance shed.

Table Shox Self-Adjusting Glides: Best for Tables

Table Shox represent a departure from traditional manual shims by utilizing a hydraulic-like internal system to keep tables stable on uneven ground. Once installed, these glides automatically adjust to the deck surface, eliminating the need to stack wedges or constantly reset the furniture. They turn a frustrating, rocky table into a solid surface with no manual labor required after the initial setup.

These are specifically recommended for dining or bistro tables where stability is non-negotiable. While they require a bit more effort to install than simply sliding a wedge under a leg, the convenience of a self-leveling table is unparalleled. If the goal is a permanent, high-end fix for a frequently used pool deck dining area, these glides are the gold standard.

Steady-Sticks: Top Choice for Heavy Furniture

Steady-Sticks provide a robust solution for larger, heavier furniture items that tend to dig into or slide across deck surfaces. Designed with a wide base and durable construction, they offer a firm point of contact that won’t easily kick out or flatten under the weight of metal or teak lounge chairs. They are engineered to provide maximum surface area, which helps distribute weight more evenly across the decking material.

These shims are the ideal partner for luxury pool furniture that stays in one spot for the duration of the season. Because they are thicker and more substantial, they are less likely to get lost during seasonal storage. Anyone looking for a heavy-duty, “set it and forget it” option for substantial outdoor seating should prioritize Steady-Sticks for their longevity and structural integrity.

Bear Grizzly Shims: The Heavy-Duty Solution

When the job calls for extreme durability, Bear Grizzly Shims stand out for their rugged build quality. These shims are designed for heavy-duty applications where standard plastic wedges might crack under high pressure. Their reinforced design ensures they maintain their shape under the immense load of cast iron or wrought iron furniture, preventing that annoying “give” that often develops over time.

These are perfect for commercial-grade or industrial-style pool furniture. They are not the most subtle option for lightweight plastic chairs, but they are unmatched for heavy gear that needs to remain absolutely static. For those who own substantial, heavy-duty pieces that would crush a lesser shim, these are the only reliable choice.

Glake Screw-In Levelers: For a Permanent Fix

Glake screw-in levelers move beyond the concept of a temporary shim by becoming a literal part of the furniture frame. By drilling and tapping the legs of a chair or table, these levelers offer infinite adjustability through a simple twisting motion. This provides the cleanest look possible, as the mechanism is largely hidden beneath the leg of the furniture.

This solution is recommended for those comfortable with basic tools and looking for a permanent upgrade to their favorite pieces. They effectively solve the issue of shifting deck pavers because the height can be adjusted in seconds without lifting the furniture. For the dedicated DIY enthusiast seeking a sleek, integrated look, screw-in levelers are the superior path.

NELCO Tapered Shims: The Budget-Friendly Pick

NELCO tapered shims offer a straightforward, no-nonsense approach to leveling at an extremely accessible price point. Their simple design allows for quick adjustments, and because they are sold in bulk, they are perfect for managing multiple pieces of furniture simultaneously. These are the workhorses of the shim world, providing consistent results without the need for complex engineering.

These shims are the right choice for the casual pool owner who needs a quick fix for a handful of chairs. They are excellent for keeping in the garage for guests or for quickly stabilizing a plastic table that has started to tilt. If cost-effectiveness and simplicity are the primary drivers, there is no reason to look past the reliable utility of NELCO tapered shims.

Choosing Your Shim: Hard vs. Soft Plastic

The choice between hard and soft plastic shims comes down to the friction requirements of the deck surface and the furniture legs. Soft or flexible plastic shims provide a slight “grip” that prevents the furniture from sliding on smooth stone or tile surfaces. Conversely, hard plastic shims offer superior weight-bearing capacity and will not deform over time, making them better for heavy, permanent setups.

• Soft Plastic: Ideal for slippery pool tiles; provides extra traction and noise dampening.
• Hard Plastic: Best for heavy furniture on rough concrete or wood; prevents “creep” and maintains stability over long periods.

Consider the surface of the pool deck closely before purchasing. A smooth, sealed concrete deck might benefit from the grip of a softer material, while a textured paver deck will almost always perform better with a firm, rigid shim that can bridge the gaps between stones.

How to Safely Level Your Poolside Furniture

Safety starts with ensuring that the leveling process does not create a trip hazard. Always trim excess shim material so that it sits flush against the leg of the furniture, ensuring no part of the shim protrudes where a bare foot might catch it. Use the “rule of thumb” test: if you can easily catch your toe on the shim, it needs to be trimmed or replaced with a lower-profile option.

• Always level on a flat, clear section of the deck if possible.
• Avoid stacking more than two shims high, as this significantly decreases stability.
• Periodically check levels after heavy rainfall or seasonal freezing, as deck surfaces often shift.

When installing, always perform a weight-test by applying pressure to the furniture before putting it into service. If the piece rocks or the shim slips, re-evaluate the placement. A few minutes of careful adjustment prevents injuries and keeps the pool area safe for everyone.

Can Shims Damage Your Pool Deck Surface?

It is a common misconception that shims are inherently harmful, but improper selection can indeed cause surface damage. Soft shims are generally very gentle, but hard, abrasive plastic or poorly finished metal shims can scratch delicate pool finishes or travertine tiles over time. Ensure that the base of the shim is smooth and free of burrs before placing it directly onto a high-end pool deck surface.

Additionally, trapped moisture beneath a shim can sometimes lead to localized staining or algae growth on porous deck surfaces like natural stone. Periodically lifting the furniture to wipe down the area and the shim itself helps maintain the integrity of both the deck and the shim. Choosing a shim material that matches the hardness of the deck surface will almost always prevent long-term cosmetic damage.

Beyond Shims: Other Uneven Deck Solutions

If shims feel like a band-aid solution, consider addressing the deck surface itself or the furniture features. Many modern outdoor rugs are thick enough to level out minor height variations in pavers, providing a stable, level surface while adding a decorative element. Alternatively, if the deck itself is the issue, professional leveling or “mud jacking” might be necessary if the pavers have settled significantly enough to create drainage issues.

• Outdoor Rugs: Excellent for hiding minor discrepancies and protecting deck surfaces.
• Adjustable Feet: Many modern chairs come with factory-installed adjustable leveling feet.
• Deck Recoating: Sometimes the issue isn’t the deck but a thin, uneven finish that can be evened out with a professional resurfacing.

While shims remain the most practical and immediate fix for poolside wobbles, they shouldn’t always be the final answer. Evaluating the state of the deck and the furniture periodically ensures that the space remains a safe, comfortable retreat for many seasons to come.

Taking the time to stabilize your poolside furniture transforms a source of constant frustration into a reliable foundation for relaxation. By choosing the right tool for the job—whether it is a rugged shim for a heavy lounger or an integrated leveler for a dining table—you protect your gear and elevate your outdoor experience. Stick with these practical solutions, and your deck will remain the steady, inviting destination it was meant to be.