Heavy Duty Sandbags
Composite geotextile sandbags for coastal and marine applications
Filled weights approximate, vary with moisture.
Please note: our sandbags ship empty (unfilled) . Fill on-site with sand, soil, gravel or other ballast as needed.
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Ships in 1–2 Days
Nationwide delivery
Bulk Discounts
Save more on volume
Custom Orders
Tailored to your needs
High-performance sandbags for demanding and high-exposure applications
Our Heavy Duty Geotextile Sandbags are manufactured from a 500 g/m² composite staple-fibre geotextile, providing greater thickness and strength than our standard geotextile range.
The heavy-duty material combines high puncture and tear resistance with excellent water filtration, making these bags particularly suited to demanding environments where abrasion, exposure and water movement are important considerations.
They are well suited to coastal, marine and inland waterway applications, as well as projects requiring a more robust sandbag construction.
Choose Heavy Duty when: your project involves significant abrasion, water movement, filtration requirements or prolonged exposure to demanding conditions.
Projects Using These Bags
Where Heavy Duty Sandbags has been specified and installed.
Technical Specifications
Composite Staple Fibre Geotextile — Material tested in accordance with SANS and ISO standards - results represent laboratory averages
- Mass (+/-10%)
- 500 g/m2 (SANS 9864:13 / ISO 9864:05)
- Thickness at 2 kPa
- 3.6 mm (SANS 9863-1:13 / ISO 9863-1:05)
- CBR Puncture Strength
- 3.5 kN (SANS 12236:13 / ISO 12236:06)
- Tensile Strength (MD/CMD)
- 25/23 kN/m (SANS 1525:13 / ISO 10319:08)
- Elongation at Break
- >75% (SANS 1525:13 / ISO 10319:08)
- Trapezoidal Tear (MD/CMD)
- 750/600 N (ASTM D4533)
- Grab Strength (MD/CMD)
- 1,200/1,150 N (ASTM D4632)
- Grab Elongation at Break
- >75% (ASTM D4632)
- Throughflow
- 55 l/m2/s @100 mm head (SANS 11058:13 / ISO 11058:10)
- Manufacturing Method
- Needle-punched staple fibre nonwoven
- UV Resistance
- Enhanced - suited for prolonged coastal and high-UV exposure
- Chemical Resistance
- Resistant to soil chemicals and salt water
- Rot Resistance
- Non-biodegradable - rot and moisture proof
Common Questions
Tap a question to see the answer.
Fill bags to approximately two-thirds capacity. Do not overfill — partially filled bags stack and conform better, creating a more effective barrier.
Volume pricing
Per-bag rates step down as your order quantity increases, shown here for 700x350mm. Rates apply across the full order.
| Order size | 700x350mm price per bag |
|---|---|
| 100+ bags | R75.05 /bag |
| 250+ bags | R72.68 /bag |
| 350+ bags | R71.10 /bag |
-
100+ bagsR75.05 /bag
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250+ bagsR72.68 /bag
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350+ bagsR71.10 /bag
Customer Reviews
Trusted by businesses and organizations across South Africa
“Great product — outperforms the brown plastic bags we used before in durability, especially UV breakdown, and looks much more pleasing to the eye.”
Gareth Hedges
Campsite & Landscaping
“Very fast friendly and efficient service. Good quality product”
Industrial Trading Partner
Erosion Control
“Friendly and very efficient in delivery. Bags are high quality and all sizes are available. Highly recommend them.”
Fred Leask
General Construction
“Reliable partner for our construction projects. Consistently good quality and always delivers on time.”
Power Line Africa
Construction
“Outstanding service from Leanne. Delivered my order within 48 hours when I was in a bind - project started on schedule.”
Mo
Construction
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