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Longspan Explained
Longspan Design and Configuration
Longspan Shelving & racking is designed to be easy to assemble, have good stability, yet remain low cost. This has driven the modular configuration, made up of Frames, Beams and Shelves (Decking).
Frames
Each frame (end-piece) is composed of two metal, perforated uprights. The uprights are joined together with diagonal bracing to provide stability.
The frame uprights are perforated to allow boltless mounting of the beams - a chracteristic that gives rise to the often used generic name of “Boltless Shelving”. The perforations are tapered in order to positively locate the cross-beams, guaranteeing a rigid shelving unit when built. The perforations are normally set at a pitch of 50mm to give plenty of flexibility when it comes to positioning shelves.
Beams
The beams fit between the frames and support each deck (shelf). Beams are recessed so that the shelves are steadily in position, with no movement.
Shelves
Once the beams are in place, shelves are laid betweeen them. Shelves are generally made of 25mm Chipboard.
Levels
You will often hear people referring to “Levels” when talking about Longspan Shelving systems. This term simply means the combination of two beams and a shelf.
Bays
A bay is the basic building block for a run of Longspan Shelves and comprises a minimum of two Frames and Two Levels. Although three Levels per bay is generally seen as a true minimum number. Our Longspan is provided with three levels per bay as standard.
Bays can be further divided into Starter Bays and Add-on Bays.
A Starter Bay is the unit described above, with two end-frames and two or more levels. This is the item needed if you want a standalone Longspan Shelving Unit. You will also need one Starter Bay for every run of multiple bay Longspan Shelving that you erect.
Add-on (Extension Bays) come with a number of levels but only one frame. This is used in a run of shelves as one end of the beam fits in the frame of the bay next to it.
This configuration, making use of common frames, allows you to keep costs down by reducing the number of frames required in a run. For example, a continuous run of four bays needs only five frames, rather than the eight frames required by four single bays.
Longspan Summary
Hopefully the information in this guide will prove useful in your purchase of Longspan Shelving.
For more information on the Longspan Shelving that we have for sale, you can call us on 01743 874346, email sales@3jc.co.uk or visit our New Longspan Shelving or Used Longspan Shelving pages.
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