Quinn Hollowcore Flooring

Precast Hollowcore Flooring

Mannok Hollowcore Flooring units are machine cast concrete slabs, with tubular voids extending the full length of each slab, creating a light weight building unit, saving money on materials and transport costs.

All Mannok Hollowcore Flooring products are produced to the highest quality standards and conform to current European, British and Irish standards. The design of the units is in accordance with EN 1168 and the characteristic strength at 28 day test is 50 N/mm2.

The precast hollowcore flooring system eliminates costly excavation, provision and compaction of infill and provides an immediate dry working platform.

Large open spaces can be created with minimum use of internal support and, with the excellent span/depth ratio, overall construction height can be minimised.

This flooring is suitable for both domestic and commercial buildings and is supplied is supplied in lengths to site requirements ranging in depths from 150mm to 400mm.

Alternative shapes and widths are available to order and the Technical by Mannok Team provides advice and guidance on floor plans for layouts, spans and loadings.

The Technical by Mannok Team can also prepare layout drawings with design details and support calculations to assist you with your construction project when selecting your precast products.

Safe Imposed Load v Clear Span Data for Prestressed Solid and Hollow Core Slabs

Depth of precast unit (mm) Type Density (kN/m2) Allowable clear span (m) for imposed live load (kN/m2)
1.0 2.0 5.0 10.0
150 Hollow core 2.38 7.30 7.30 6.97 5.52
150HD Hollow core high density 3.00 7.30 7.30 6.72 5.39
200 Hollow core 2.89 9.80 9.80 8.84 7.06
250 Hollow core 3.43 12.30 12.30 10.65 8.59
300 Hollow core 3.95 14.80 14.47 12.66 10.30
320 Hollow core 4.42 14.80 14.80 13.67 11.19
400 Hollow core 5.02 17.30 17.30 16.26 13.35
Specification
Load bearing elements can be placed directly onto the hollowcore flooring units, eliminating the need for additional support and providing greater design flexibility
The hollowcore flooring units are cast on steel moulds, type “A” soffit finish as defined in BS 8110 Part 1 Clause 6.2.7.3
The top of hollowcore flooring units can be roughened during manufacture to ensure an adequate bond is achieved when a structural screed is required
Upward camber at erection will range between 2 and 4mm per metre length of span and the actual amount will be relative to the prestress in the unit
Deflection from the various applications of load, i.e. self-weight, partitions, screeds, finishes and live load, as well as the effects of temperature and creep, will rarely eliminate all of the initial upward camber
The hollowcore flooring units have a minimum fire resistance rating of 1 hour. Higher ratings can be achieved by using various ceiling finishes, additional cover to reinforcement, etc.
The hollowcore flooring units have a high resistance to the transmission of airborne sound and impact sound and can be adapted to suit almost any requirement – the 150mm dense slab meets the requirement of document E for sound
Performance & Properties
Depth Weight Density
150mm Dense Slab 296 kg/m2 3.00 kN/m
150mm Hollowcore 237 kg/m2 2.38 kN/m
200mm Hollowcore 276 kg/m2 2.89 kN/m
250mm Hollowcore 329 kg/m2 3.43 kN/m
300mm Hollowcore 380 kg/m2 3.95 kN/m
320mm Hollowcore 426 kg/m2 4.42kN/m
400mm Hollowcore 482 kg/m2 5.02kN/m
Applications
Blockwork
Brickwork
Steel and concrete framed structures
For more information call: 08000 322 122 (UK&NI) 1800 322 122 (ROI)
  • Why Work with Mannok
  • Benefits & Rewards
  • Professional Development
  • Wellbeing
  • Why Work with Mannok

    Why Work with Mannok

    At Mannok, we value the strength, skill and ingenuity of our workforce and we're committed to continual development and investment in our people to support every employee to achieve their career goals.

    We have a diverse culture, reflected not only in our business functions, but also in our people. A career with Mannok means joining a team that puts people at its core, whether it be customers, partners or employees. We offer significant development opportunities through a wide and varied range of roles and actively seek out potential.

    Mannok is an industry leader, with over 830 employees and almost 50 years of manufacturing history, supplying quality products to some of the construction and food packaging industries’ largest organisations.

    Sustainability sits at the heart of our values, as outlined in our 2030 Vision. We have ambitious targets which will see us transform from a carbon intensive business to a more sustainable pathway. In order to achieve our sustainability goals, we will rely on the commitment and support of every employee and seek to recruit those with shared values. We have built our vision on three core pillars of People, Planet and Partners, each of which are essential to the long-term success of our organisation, ensuring we continue to make a substantial contribution to the economic, social and environmental sustainability of this region for the next and future generations.

  • Benefits & Rewards

    Benefits & Rewards

    We value our people and give recognition for personal success, drive, commitment and determination. We understand that rewards are more than pay and performance related bonuses, so we have a variety of benefits to cater for the diverse needs of our people, these benefits include:

    • Attractive performance related pay scheme with annual salary review
    • Pension scheme
    • Life Assurance scheme
    • Sponsorship for professional qualifications / study leave
    • Enhanced company sick scheme
    • 30 days annual leave, inclusive of bank holidays
    • Incremental holiday allowance increase for long-term service
    • Skills Development Programme with structured career pathways linked to salary increments, rewarding multi-skilled personnel
    • Social Club
    • Discount on company products
    • Health & Wellbeing Programme
  • Professional Development

    Continuous Professional Development

    A career with Mannok offers a range of opportunities to continue learning and professional development, both internally as part of your role, and through our numerous educational and professional development partnerships.

    SKILLS DEVELOPMENT PROGRAMME

    We are changing how we develop, measure, and recognise levels of skills and competency in our business through the extension of our award-winning Skills Development Programme to every employee to enable all staff to become up-skilled and cross-skilled.

    The Programme will provide every employee with a structured development pathway and the necessary training materials to support their progression. Progress is linked to salary increases, ensuring our employees are financially rewarded for their skills and experience and are supported and encouraged to achieve their career goals.

    PROFESSIONAL QUALIFICATIONS

    At Mannok, we enable and encourage employees to progress their careers with recognised courses and qualifications in a wide range of disciplines through our range of development partnerships with some of the country’s leading educational and professional bodies. Employees have the opportunity to gain degree level qualifications and go on to become chartered in their relevant role.

  • Wellbeing

    Wellbeing & Resilience

    Here at Mannok, we recognise the importance of looking after our employees’ mental health and wellbeing, and that our duty of care goes beyond ensuring physical safety.

    We aim to create a diverse and inclusive workplace, enhance the mental and physical wellbeing of every Mannok team member and provide support to help sustain our people and build resilience into our business systems.

    We have established a partnership with local mental health charity, AWARE, and introduced a new Mental Health Charter to outline our commitment to the mental wellbeing of our employees. We have trained mental health first aiders across our business and all managers receive mental health training.

    Activities and advice on looking after your mental wellbeing are actively promoted through our internal communication channels and we provide signposting to support services available. Our digital employee health and wellbeing portal provides access to health, fitness and mindfulness classes and multiple resources to enable a tailored wellbeing platform for every Mannok team member.

Purpose

To benefit our local economy and community for the long term, providing sustainable employment opportunities and making a meaningful contribution to the economic, social and environmental prosperity of our local region.

Mission

To provide quality products and excellent customer service and to grow our business through continuous innovation, sustainability leadership and the development of our people. We are proud of our roots and are focused on the success of our local community.

Vision

To be sustainability leaders in our community and the industries in which we operate and the employer and supplier of choice.

Values

To be trustworthy
To respect people
To be committed to our community
To be sustainability leaders

  • Why Work with Mannok
  • Benefits & Rewards
  • Professional Development
  • Wellbeing
  • Why Work with Mannok

    Why Work with Mannok

    At Mannok, we value the strength, skill and ingenuity of our workforce and we're committed to continual development and investment in our people to support every employee to achieve their career goals.

    We have a diverse culture, reflected not only in our business functions, but also in our people. A career with Mannok means joining a team that puts people at its core, whether it be customers, partners or employees. We offer significant development opportunities through a wide and varied range of roles and actively seek out potential.

    Mannok is an industry leader, with over 830 employees and almost 50 years of manufacturing history, supplying quality products to some of the construction and food packaging industries’ largest organisations.

    Sustainability sits at the heart of our values, as outlined in our 2030 Vision. We have ambitious targets which will see us transform from a carbon intensive business to a more sustainable pathway. In order to achieve our sustainability goals, we will rely on the commitment and support of every employee and seek to recruit those with shared values. We have built our vision on three core pillars of People, Planet and Partners, each of which are essential to the long-term success of our organisation, ensuring we continue to make a substantial contribution to the economic, social and environmental sustainability of this region for the next and future generations.

  • Benefits & Rewards

    Benefits & Rewards

    We value our people and give recognition for personal success, drive, commitment and determination. We understand that rewards are more than pay and performance related bonuses, so we have a variety of benefits to cater for the diverse needs of our people, these benefits include:

    • Attractive performance related pay scheme with annual salary review
    • Pension scheme
    • Life Assurance scheme
    • Sponsorship for professional qualifications / study leave
    • Enhanced company sick scheme
    • 30 days annual leave, inclusive of bank holidays
    • Incremental holiday allowance increase for long-term service
    • Skills Development Programme with structured career pathways linked to salary increments, rewarding multi-skilled personnel
    • Social Club
    • Discount on company products
    • Health & Wellbeing Programme
  • Professional Development

    Continuous Professional Development

    A career with Mannok offers a range of opportunities to continue learning and professional development, both internally as part of your role, and through our numerous educational and professional development partnerships.

    SKILLS DEVELOPMENT PROGRAMME

    We are changing how we develop, measure, and recognise levels of skills and competency in our business through the extension of our award-winning Skills Development Programme to every employee to enable all staff to become up-skilled and cross-skilled.

    The Programme will provide every employee with a structured development pathway and the necessary training materials to support their progression. Progress is linked to salary increases, ensuring our employees are financially rewarded for their skills and experience and are supported and encouraged to achieve their career goals.

    PROFESSIONAL QUALIFICATIONS

    At Mannok, we enable and encourage employees to progress their careers with recognised courses and qualifications in a wide range of disciplines through our range of development partnerships with some of the country’s leading educational and professional bodies. Employees have the opportunity to gain degree level qualifications and go on to become chartered in their relevant role.

  • Wellbeing

    Wellbeing & Resilience

    Here at Mannok, we recognise the importance of looking after our employees’ mental health and wellbeing, and that our duty of care goes beyond ensuring physical safety.

    We aim to create a diverse and inclusive workplace, enhance the mental and physical wellbeing of every Mannok team member and provide support to help sustain our people and build resilience into our business systems.

    We have established a partnership with local mental health charity, AWARE, and introduced a new Mental Health Charter to outline our commitment to the mental wellbeing of our employees. We have trained mental health first aiders across our business and all managers receive mental health training.

    Activities and advice on looking after your mental wellbeing are actively promoted through our internal communication channels and we provide signposting to support services available. Our digital employee health and wellbeing portal provides access to health, fitness and mindfulness classes and multiple resources to enable a tailored wellbeing platform for every Mannok team member.