Starting a Profitable Kerb-Making Business: A Comprehensive Guide

Kerb-making is a specialized sector within the paving industry that offers significant profit potential. Unlike brick-making, kerb-making does not have as high competition, providing a unique opportunity for entrepreneurs to establish a successful business. Whether you use plastic molds or steel machines, understanding the kerb-making process, required equipment, costs, and profitability is crucial. This guide provides detailed insights into starting your kerb-making business, from essential equipment to cost estimation and profitability analysis.

Types of Kerb-Making

  1. Kerbs Made with Plastic Molds
    • Description: Kerbs produced using plastic molds are versatile and can be customized into various shapes and sizes. They are ideal for smaller projects and intricate designs.
    • Benefits: Cost-effective, easy to use, and allows for creative flexibility.
  2. Kerbs Made with Steel Machines
    • Description: Kerbs produced using steel machines are suited for larger-scale projects. These machines can produce multiple kerbs simultaneously, ensuring uniformity and efficiency.
    • Benefits: High production capacity, durable, and consistent quality.

Equipment and Materials Needed

  1. Plastic Molds
    • Variety of Designs: Available in various shapes and sizes to create different kerb profiles. Cost: R50 to R300 per mold depending on design and quality.
  2. Steel Kerb-Making Machines
    • Automatic Kerb Machines: Suitable for large-scale production, capable of producing multiple kerbs simultaneously. Cost: R100,000 to R300,000 depending on capacity and features.
    • Semi-Automatic Kerb Machines: Suitable for medium-scale operations. Cost: R30,000 to R100,000.
  3. Mixing Tools and Equipment
    • Concrete Mixer: Essential for mixing cement, sand, and water. Cost: R5,000 to R15,000.
    • Vibratory Plate Compactor: For compacting the base layer. Cost: R10,000 to R30,000.
    • Trowels and Spades: For spreading and leveling the mixture. Cost: R100 to R500 each.
  4. Materials
    • Cement: Essential for the mixture. Cost: R80 per 50 kg bag.
    • Sand: Primary component of the mixture. Cost: R200 per cubic meter.
    • Water: Necessary for mixing with cement and sand.
    • Optional Additives: Enhancers like color pigments for aesthetic appeal.

Setting Up Your Kerb-Making Operation

  1. Site Selection
    • Choose a location with ample space for production and storage.
    • Ensure proximity to raw material suppliers to minimize transportation costs.
  2. Procurement of Equipment and Materials
    • Invest in the necessary kerb molds or kerb-making machines based on your production scale.
    • Purchase cement, sand, and optional additives in bulk to benefit from volume discounts.
  3. Kerb-Making Process
    • Preparation: Ensure the site is clean and level.
    • Mixing: Combine cement, sand, and water in the correct ratio. Optional additives can be included at this stage.
    • Molding and Compaction: For plastic molds, pour the mixture into the molds and allow it to set. For steel machines, use the machine to mold and compact the kerbs.
    • Curing: Let the kerbs cure properly to achieve maximum strength and durability.
    • Installation: Arrange the cured kerbs in the desired pattern.

Profitability Analysis

Understanding the profitability of your kerb-making business is essential for long-term success. Here’s a detailed breakdown of costs and potential profits based on hypothetical projects.

Kerbs Made with Plastic Molds

  1. Cost Breakdown for a Kerb Project
    • Total cost to produce 100 meters of kerbing:
      • Plastic molds: R3,000 (assuming reusable molds)
      • Cement: R6,000
      • Sand: R3,000
      • Labor and equipment rental: R8,000
    • Total cost: R20,000
  2. Revenue and Profit Calculation
    • Charging R300 per meter for the project.
    • Revenue: 100 meters x R300 = R30,000
    • Profit: R30,000 – R20,000 = R10,000
  3. Daily Production and Profit
    • If a team can complete 100 meters in a week, the weekly profit is R10,000.
    • Daily profit: R10,000 / 7 ≈ R1,429

By completing and charging for one 100-meter project per week, you can achieve a weekly profit of R10,000, resulting in a daily profit of approximately R1,429.

Kerbs Made with Steel Machines

  1. Cost Breakdown for a Kerb Project
    • Total cost to produce 100 meters of kerbing:
      • Machine rental or depreciation: R10,000
      • Cement: R6,000
      • Sand: R3,000
      • Labor: R10,000
    • Total cost: R29,000
  2. Revenue and Profit Calculation
    • Charging R400 per meter for the project.
    • Revenue: 100 meters x R400 = R40,000
    • Profit: R40,000 – R29,000 = R11,000
  3. Daily Production and Profit
    • If a team can complete 100 meters in a week, the weekly profit is R11,000.
    • Daily profit: R11,000 / 7 ≈ R1,571

By completing and charging for one 100-meter project per week, you can achieve a weekly profit of R11,000, resulting in a daily profit of approximately R1,571.

Important Considerations

  1. Pricing Strategy
    • Ensure your kerbing services are competitively priced. Conduct market research to understand competitors’ pricing.
    • Consider incremental price increases to boost profitability without significantly affecting demand.
  2. Cost Optimization
    • Optimize labor costs by incentivizing productivity.
    • Purchase raw materials in bulk to secure discounts.
    • Reuse plastic molds to minimize costs and regularly maintain machines to avoid downtime.
  3. Operational Efficiency
    • Invest in reliable transportation to ensure timely delivery of materials.
    • Regularly update your profitability calculations based on real-time data and actual costs.


Starting a kerb-making business can be highly profitable if managed effectively. By investing in the right equipment, optimizing costs, and strategically pricing your services, you can maximize your profits and build a sustainable business. Careful financial planning and operational efficiency are crucial to achieving business success. Unlike the highly competitive brick-making industry, kerb-making offers a unique opportunity with less competition, making it a valuable investment opportunity for entrepreneurs seeking long-term profitability and market stability.

Note: Prices and costs mentioned in this article may vary as the cost of equipment and materials can differ from suppliers and may change over time. This article is written on 13 June 2024, and all estimates are based on information available at that time.

Related articles

Starting a Profitable Mobile Solar System Rental Business

Starting a Profitable Solar System Installation and Sales Business

Starting a Profitable Rib and Block Slab-Making Business

Starting a Profitable Paint-Making Business

Starting a Profitable Pillar-Making Business with Fiberglass Molds

Starting a Profitable Lintel-Making Business

Starting a Profitable Paving Business with Steel Machines

Starting a Profitable Paving Business with Plastic Molds

Starting a Profitable Brick-Making Business