Single Standard Cube

Single Standard Cubes
350 kg/m² Payload – Ecofriendly
 
Our eco-friendly modular cubes give boat owners an affordable, low-maintenance solution for dry-docking, berthing, and keeping vessels secure — no fuss, no rust.
 
These single cubes are a go-to for floating walkways, pontoons, jetties, work platforms and more. With a buoyancy rating of 350 kg per square metre, they’re a solid choice for just about any floating setup.
 
Each cube measures 50 x 50 x 40 cm, weighs just 6 kg, and is made from premium-grade, non-slip, fully recyclable HDPE — built tough to handle Australia’s harsh marine environments. Certified to meet international marine safety and environmental standards.
 
Thanks to their flexible design, our cubes can be shaped, extended, or rearranged to suit your space — plus, you can mix colours for a custom look that stands out on the water.
 
Heavy-Duty: 350 kg/m² load capacity handles serious weight with ease.
Flexible Use: Perfect for a wide range of floating applications.
Safe Underfoot: Anti-slip textured surface with no sharp edges — safer for everyone.
Budget-Wise: No painting, no rust, low upkeep over the long haul.
Long-Lasting: +15 years - resists UV, saltwater, frost, corrosion, chemicals, and oil.
Strong as an Ox: Has a certified tensile strength over 1950 kg (tested at 50 mm/min).
Sustainable: 100% recyclable HDPE – better for the environment.
Easy to Build: Quick to install and pull down, no special tools needed.
 
Single Standard Cube Specs
Size: 50 x 50 x 25 cm
Weight: 6kgs
Colour: Blue, Grey, Orange
Custom Colour: MOQ 60m2 (240pce)
Durability: Resistant to UV, frost, seawater, corrosion, and heavy impact
Safety: Anti-slip surface with rounded edges for safe, stable walkways
Flexibility: Modular design allows quick installation and easy reconfiguration
Longevity: Designed for 10–15 years of dependable use with minimal maintenance
Material: 100% high molecular weight & high-density HDPE
Pontoon buoyancy: > 350 kg/m2 - Detection method: QB 1557-1992
Diagonal tensile strength: > 27 kN - Detection method: GB/T 1040.1-2006
Compressive strength: > 40 Kn - Detection method: GB/T 8813-2008
Tensile strength: > 30 Mpa - Detection method: ASTM D638-2014
Impact strength: > 65kJ/m2 - Detection method: ASTM D256-2010
 
ROHS tests
The raw materials do not contain six chemicals including lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl and polybrominated diphenyl ether, making it more conducive to human health and environmental protection.
 
Pricing ex Depots (Cubes Only)
Single Standard Cubes included with purchases of dock systems sold per m2
To Purchase separately: $130ea (includes shipping)
OTTOP depots in Brisbane, Melbourne, Perth, and Sydney
To Door Delivery and 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)