Double Stacked Cubes

Double Stacked Cubes
700kg/m² Payload – Long Lasting
 
Perfect for Construction, Barges & Heavy-Duty Use
 
Double Stacked Cubes are engineered for demanding applications like work platforms, floating bridges, industrial barges, and any marine setup where high payload strength is critical.
 
By stacking standard modular cubes two-high, you’ll get a robust floating surface with a load rating of over 700 kg per square metre. Secured with extended locking pins, the structure is tough, slip-resistant, and fully modular – meaning you can reshape, resize, reposition, or remove the system as needed.
 
These platforms are environmentally friendly and safe for marine habitats, offering strong UV resistance and designed to handle Australia’s harshest weather. Their outstanding buoyancy even supports the integration of storage or equipment. For heavier jobs, triple stacking increases the payload capacity to approximately 1,000 kg/m².
 
HDPE Double Stacked Cube Docks deliver
700kg/m² per m2 - double stacked
Durable, UV-stabilised, and 100% recyclable materials
Long lifespan – 15+ years
Certified tensile strength over 1,950 kg
Custom colours available
Safe, non-slip surface with no sharp edges
1m² (Double Stacked) = 8 Cubes
 
All cube modules are internationally certified, fully recyclable, metal-free, and maintenance-free – ideal for long-term, sustainable use.
 
Floating Modular Dock Features
Configuration: Customise to any size or shape.
Durability: Resistant to UV, frost, seawater, corrosion, and impact.
Safety: Anti-slip surface, rounded edges, stable walkways.
Strength: Compression load 1,000+ kg/m²; tensile strength 1,950+ kg.
Flexibility: Modular design for quick installation and reconfiguration.
Sustainability: 100% recyclable HDPE, environmentally friendly.
Longevity: 10–15 years of reliable service with minimal upkeep.
Advantage: Expand or reduce dock size at any time with extra cubes.
 
Included in per m2 Dock Pricing
Single Cubes – Stable base, ideal for drive-on/off docks. Colours: Blue, Grey, Orange
Connections – Cube Long pins, side nuts & Long bolts, and washers included.
Tools – Pin spanner (pins), wrench (nuts/bolts).
 
Dock Pricing per m2 (Ex Depots)
01–10 m² – $450 per m²
11–20 m² – $430 per m²
21–30 m² – $415 per m²
31–40 m² – $400 per m²
Plus 41m² – $390 per m²
Depots: Brisbane, Melbourne, Perth, Sydney
Delivery: To Door & other destinations available on request
 
Delivery Time
Approximate lead time is 6–8 weeks
 
Dock Accessories
OTTOP carries the largest range of modular dock accessories in Australia
Discounts available when purchased with a dock system
Accessories also sold separately (shipping applies)
 
Dock Installation
DIY ready with straightforward setup
Two people can install around 50 cubes per hour
Comes with clear, step-by-step instructions
Installation available on request (service fee applies)