Square & Rectangular Planter Liners and Feet

Protect your planters and the surfaces beneath them

Measure the inside of your planter (length × width × depth) and match to the size below. If your planter is between sizes, choose the next size up.

Size Fits planter (inches) Fits planter (cm) Available as
Medium 16" × 16" × 16"H 400 × 400 × 400mm H Single & 2-Pack
Large 20" × 20" × 18"H 500 × 500 × 450mm H Single & 2-Pack
XL 24" × 24" × 20"H 600 × 600 × 500mm H Single & 2-Pack

Not sure? Measure the inside of your planter. If your planter is close to the maximum dimensions, choose the next size up.

OAKENZ liners and corner feet are designed to fit square and rectangular planters of all materials — wood, metal, plastic, or concrete. They prevent leaks, reduce stains, and promote healthier root growth, helping your planters last longer while keeping outdoor surfaces clean and protected.

Why Planters Cause Damage

Planters can trap moisture at the base, leading to staining, rot, and surface damage. Poor drainage can also impact plant health.

Planter Corner Feet

Lift your planter off the ground to improve drainage and protect surfaces.

OAKENZ corner feet create airflow beneath your planter, helping reduce moisture build-up and prevent staining on decks, patios, and paved areas.

Discreet, low-profile design

Supports heavy planters

Suitable for timber, resin, concrete & metal

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Square wooden planter rotting

WHY PLANTERS ROT & DEGRADE

The main cause of planter damage is the direct contact between soil, moisture, and the planter walls.

Over time, this constant exposure leads to staining, rot, and structural breakdown.

OAKENZ liners create a protective barrier between the soil and the planter — reducing moisture absorption and extending the life of the planter.

The OAKENZ Liner Solution

OAKENZ liners solve the root cause of planter damage by creating a protective barrier between soil, moisture, and the planter walls.

This prevents moisture absorption, reduces internal damage, and helps extend the life of the planter.

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Square Planter Liners – Waterproof Insert for Wooden Planters - OAKENZ

Square Planter Liners

Available in Medium, Large and Xtra Large to fit common planter sizes

  • Heavy duty -100 micron
  • Helps reduce planter wear and rot
  • Supports moisture retention for healthy plant growth
  • Strong, UV-resistant construction
  • Made from plant-safe, recyclable materials

Fits All Planter Materials → Wood, metal, plastic, or concrete

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Rectangle Planter Liners - OAKENZ

Rectangle Planter Liner

  • Heavy duty -100 micron
  • Helps reduce planter wear and rot
  • Supports moisture retention for healthy plant growth
  • Strong, UV-resistant construction
  • Made from plant-safe, recyclable materials

Fits planters up to: 39" × 20" × 20"H (1000 × 500 × 500mm H)
Measure the inside of your planter before ordering.

Fits All Planter Materials → Wood, metal, plastic, or concrete

Shop Rectangular Planter Liners