About Large Box Planters
| Standard Size | Dimensions (cm) |
|---|---|
| Size 200 | 200 x 50 x 50 |
| Size 150 | 150 x 50 x 50 |
| Size 100 | 100 x 50 x 50 |
| Size 50 | 50 x 50 x 50 |
Large Box Planters deliver clean rectilinear geometry and architectural boundary definition for residential courtyard perimeters, commercial streetscapes, and alfresco dining zones. When elongated containers hold substantial volumes of damp growing media, long vertical walls experience continuous outward pressure. To counter this lateral force, every box planter is engineered with horizontal and vertical reinforcement, ensuring sidewalls remain plumb, straight, and structurally sound under active root growth.
Crafted from advanced Polystone Resin, the containers capture the visual weight and tactile presence of carved masonry while remaining lightweight compared to solid precast concrete. The composite is inherently water-resistant, eliminating the need to apply internal waterproofing sealers before adding soil. On selected sizes, pre-moulded feet are integrated into the base mould to raise the container floor slightly above the pavement, encouraging unrestricted drainage airflow and preventing moisture accumulation beneath the pot.
Four modular stock sizes accommodate diverse spatial layouts: 200 x 50 x 50, 150 x 50 x 50, 100 x 50 x 50, and 50 x 50 x 50. For projects requiring exact joinery or non-standard architectural dimensions, custom sizing can be manufactured to your project specifications. Explore complementary designs in our Polystone Resin Planters and Trough Planters collections, or contact us about a product or project to discuss custom fabrication and trade supply.
What planting schemes work best for privacy screening in 200 x 50 x 50 troughs?
The generous 50 cm width and depth provide sufficient soil volume for dense hedging species. Syzygium (lilly pilly), clumping bamboo (Bambusa gracilis), Viburnum tinus, and pleached ficus establish vigorous root systems in these troughs, creating effective acoustic and visual screens along suburban boundary fences.
How does dual-axis reinforcement prevent bowing across a two-metre container?
A container spanning 200 cm experiences immense hydraulic and mechanical forces from saturated potting media. Embedding horizontal and vertical reinforcement bands within the Polystone matrix resists lateral deflection, preventing the long side panels from bulging outwards over time.
How should the drainage layer be assembled in long box planters?
Confirm all base drainage holes are unobstructed. Place strips of drainage cell or coarse drainage aggregate along the bottom channel, overlay with commercial non-woven geotextile fabric to prevent soil migration, and fill with an open-structured potting mix that drains freely under automated drip irrigation.
What are the structural benefits of pre-moulded feet on paved surfaces?
Pre-moulded feet lift the underside of the planter off the pavement, creating a continuous air gap. This prevents bottom drainage holes from sealing against smooth stone or concrete, stops standing water from discolouring delicate alfresco tiles, and enables rapid runoff after heavy rains.
How do you clean and maintain the stone-like Polystone finish?
Wash exterior panels periodically with a soft sponge, warm water, and mild detergent to remove traffic grime, garden dust, or mineral splash. Avoid wire brushes, abrasive pads, and solvent cleaners that could mar the stone-textured exterior.
