2 Two Tier Racking Shelving Systems
Two-tier racking: more capacity and less cost than a mezzanine
Two Tier Shelving utilises all of the available building headroom without the need for a separate mezzanine floor, thus providing the most cost-effective solution possible.
Two Tier Shelving is extra-tall shelving with a raised aisle, suspended to create a walkway accessible via stairs.
You have to store many different products with enough stock to supply demand, whilst having only so much space available. Where there is sufficient headroom, a Two-Tier or multi-storage platform is the ideal solution providing maximum capacity whilst maintaining straightforwrad accessibility for employees.
The heavy duty uprights are dimensioned to be able to carry the loads from the floor above. Multi-tier installations are often used for spare parts or for many low-turnover articles in laregr warehouses.
The modular construction of the shelving walkway systems makes two- and three-tier systems ideal when the concrete slab has a finite load-bearing capability or access is limited.
As tiered floor systems require a building regulations application to be submitted, our project designers will advise on the steps necessary to satisfy these regulations.
For further information, please contact our office 01635 32032: one of our designers will be pleased to come on-site and carry out a free site survey
What standards should they be built to?
Tiered storage structures must comply with Building Regulations and require approval by the building control body and your local fire authority.
What load can they bear?
Typical rack or shelving mounted structures allow for between 3.5 – 5 kN per square metre. However it is possible to design in greater floor loading although this will incur greater costs and may add limitations to the structure.
What sizes, formats and configurations do tiered storage structures come in? Are they an 'off the shelf' product, or are they all tailored to order?
Tiered storage structures are all bespoke to meet customers’ individual needs. They are available in a wide range of floor areas, from 10 m2 to well over 15,000 m2.
What materials are they made of?
The walkways within tiered structures can either be supported by angles fixed to the front face of the rack or by purlins to allow greater spans of walkways. The flooring material can be specified as particleboard typically 38mm thick or open grid steel flooring, the depth of which can be varied to allow for various floor loadings. Benefits of particle board flooring include the option to add decorative or non slip floor surfaces which can be laid on top. If there is a very large area of flooring with particleboard it may be a requirement of the building regulations that the underside of the particleboard floor be fire protected to Class O flame spread resistance. Benefits of open steel flooring include increased spread of lighting from the floor above and water penetration for the operation of sprinklers.
How do you incorporate lighting into the tiered structure?
It is fairly normal with tiered structures for the lighting supports tobe incorporated into the structure. It is usual on all raised storage areas to specify a lighting level of 300 lux along with emergency lighting.