
Marquee Ballast Blocks
Elite Precast Concrete's KM500 and KM1000 Marquee Ballast Blocks provide a robust, reliable and practical solution for securing marquees, temporary structures and event installations where traditional ground anchoring methods may be unsuitable or restricted.
What are Marquee Ballast Blocks?
Designed to provide substantial ballast weight without the need for permanent foundations or ground penetration, these precast concrete blocks offer a convenient solution for marquee hire companies, event contractors and temporary structure installers working across a wide range of locations.
Manufactured using high-quality precast concrete at our production facilities in Shropshire, our marquee ballast blocks combine durability, stability and ease of handling, making them suitable for repeated use across the events and temporary structures industry.
Elite Precast offers two marquee ballast block options to accommodate different installation requirements.
KM500 Marquee Ballast Block
The KM500 provides a compact, heavy-duty ballast solution for marquee and temporary structure installations where a nominal 500kg ballast unit is required.
Its manageable size makes it a practical choice for applications where space is limited or where individual ballast units need to be positioned around the perimeter of a structure.
KM1000 Marquee Ballast Block
The KM1000 offers a higher-capacity ballast solution, providing a nominal 1000kg unit for installations requiring greater individual ballast weights.
Suitable for larger marquee installations and temporary structures where additional ballast is specified, the KM1000 provides a durable alternative to multiple smaller ballast units, subject to the installation's engineered requirements.
Both products provide a reusable, free-standing ballast option for temporary installations.

Why Choose Elite Precast
With decades of precast expertise, in-house engineering support and a proven delivery record on projects of every scale, Elite Precast is the partner specifiers trust. We pair robust, repeatable manufacturing with the flexibility to engineer bespoke solutions when a standard product will not do.
Key Features & Benefits
Concrete ballast blocks provide a practical alternative to ground stakes and anchors where underground services, existing surfaces or site restrictions prevent traditional anchoring methods.
Full specifications
Installation Overview
Supporting Safe Temporary Structure Installations
The correct selection and positioning of marquee ballast is essential to the safety and stability of temporary structures.
Ballast requirements will vary depending on the size and design of the marquee, anticipated wind loads, site exposure, ground conditions and the manufacturer's installation specifications.
The KM500 and KM1000 blocks must be selected and used in accordance with the temporary structure manufacturer's instructions and a suitable site-specific design or ballast assessment.
The required number of blocks, their positioning and the method of connection to the structure must be determined by a competent person. Ballast weight alone does not establish the suitability or safety of an anchorage system.
Once correctly positioned, they must be connected to the marquee or temporary structure using an appropriate, engineered anchorage system. Installation should always follow the marquee manufacturer's guidance and the site-specific ballast design.

Applications
Our KM500 and KM1000 concrete ballast blocks can be used in a variety of temporary structure and event applications, including:
Marquees and event tents – providing ballast for temporary structures where ground anchors cannot be installed.
Wedding and hospitality marquees – supporting temporary installations at hotels, country estates and event venues.
Festivals and outdoor events – providing ballast for suitably designed temporary event infrastructure, such as Christmas, seasonal or specialist interest events.
Exhibition and promotional structures – supporting temporary installations on hardstanding or paved surfaces.
Corporate events – providing a practical ballast solution for temporary structures and hospitality facilities.
Temporary shelters and canopies – offering weighted anchorage where specified by the structure designer.

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Frequently Asked Questions
Can Elite Precast Concrete supply marquee ballast blocks nationwide?
Yes, Elite Precast Concrete manufactures KM500 and KM1000 Marquee Ballast Blocks at its production facilities in Telford, Shropshire and can arrange delivery to customers across the UK. Whether you require ballast blocks for a single event or regular supplies for a marquee hire business, our experienced sales team can discuss your requirements, product availability and delivery arrangements.
. What are the advantages of concrete marquee ballast blocks over water-filled weights?
Precast concrete ballast blocks provide a consistent, substantial weight without requiring on-site filling, draining or access to a water supply. They are durable, reusable and suitable for repeated transportation between event locations. Their compact, solid construction can also make them a practical option where installation space is limited, subject to the required ballast arrangement.
Are concrete marquee ballast blocks suitable for outdoor use?
Yes, precast concrete ballast blocks are well suited to outdoor environments due to the inherent durability and weather resistance of concrete. They provide a robust ballast solution for events and temporary structures exposed to changing weather conditions. However, the suitability of the complete anchorage system must be assessed against anticipated wind loads and other environmental factors.
How are KM500 and KM1000 marquee ballast blocks installed?
Marquee ballast blocks should be positioned using suitable mechanical handling equipment and approved lifting arrangements. Once correctly positioned, they must be connected to the marquee or temporary structure using an appropriate, engineered anchorage system. Installation should always follow the marquee manufacturer's guidance and the site-specific ballast design.
Are precast concrete marquee ballast blocks reusable?
Yes, precast concrete marquee ballast blocks are designed to provide a durable, reusable solution for temporary structure installations. Unlike some temporary anchoring methods, concrete ballast blocks can be transported between event locations and used repeatedly, provided they remain in suitable condition and are inspected for damage before use.
Can marquee ballast blocks be used instead of ground anchors?
Yes, precast concrete ballast blocks can provide an alternative to ground anchors where the temporary structure has been designed and approved for a suitable weighted anchorage system. This is particularly beneficial at venues where ground penetration is restricted due to underground services, paved surfaces or site requirements. The ballast arrangement must meet the structure manufacturer's specifications.
How many concrete ballast blocks are needed to secure a marquee?
The number of ballast blocks required depends on several factors, including the marquee's size, design, location, anticipated wind loads and ground conditions. The marquee manufacturer or a competent temporary structures engineer should determine the required ballast weight, positioning and connection arrangements. Ballast requirements should never be calculated solely from the marquee's dimensions.
Where can marquee ballast blocks be used?
Marquee ballast blocks are suitable for a wide range of applications, including weddings, festivals, exhibitions, corporate events, outdoor hospitality venues and temporary shelters. They are particularly useful on hardstanding surfaces such as car parks, paved areas and event venues where traditional ground anchoring methods may not be possible.
What is the difference between KM500 and KM1000 marquee ballast blocks?
Elite Precast Concrete offers two marquee ballast block options: the KM500, with a nominal weight of 500kg, and the KM1000, with a nominal weight of 1,000kg. The KM500 provides a smaller ballast option, while the KM1000 offers greater weight per unit. The appropriate block should be selected according to the temporary structure's design and ballast requirements.
What are marquee ballast blocks?
Marquee ballast blocks are heavy-duty precast concrete weights used to help secure marquees, event tents and temporary structures. They provide a practical alternative to traditional ground anchors where staking into the ground is unsuitable or prohibited. Elite Precast Concrete manufactures KM500 and KM1000 Marquee Ballast Blocks for use across the events and temporary structures industry.
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UK Manufacturing & Nationwide Delivery
Every product is manufactured in the UK to recognised quality standards and delivered nationwide on a fleet built for site access. The result is shorter lead times, full control over quality, and the confidence of working with a British manufacturer.
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