One of the only practical options for heavy storage racking in industry is the heavy duty angle iron unit. These shelving units consist of holed angle iron uprights with sheet metal shelves and angle iron or wood bracing. These are the most popular industrial duty systems on the market and they have industrial looks and prices.

There is one particular brand that is best known, and heavy duty angle iron shelving is often called by its name even though it does not bear the brand’s name. Its units are mostly sold as 90cm wide bays and there is a choice of depths and height. 30, 45 and 60cm are three of the popular depths.

There are quite a few different brands and hole patterns. Unfortunately, different systems, as a rule, will not fit together. It is possible to force them together but this will be less than perfect since the shelves are often not horizontal and poorly supported. Therefore it is recommended that when adding to shelving space the same brand of unit is bought. That or a different brand is used but as a separate unit rather than as an extension to the existing system.

When assembling the heavy duty units, 1 inch M6 roofing bolts are recommended. A storage shelf fitted at ground level will create a strong box structure for the legs. This box structure is also useful to help to spread the load on the floor. Uprights can be cut with a tool known as an angle grinder.