When the section length of a vertical element is four times greater than its thickness it is defined as a wall. The design of walls does not differ significantly from that for columns except for the following:

■ The requirements for fire resistance (see Table 3).

■ Bending will be critical about the weak axis.

■ There are different rules for spacing and quantity of reinforcement (see below).

There is no specific guidance given for bending about the strong axis for stability. However, the principles of CIRIA Report 10810 may be followed. Alternatively the strut and tie method may be used (section 6.5 of the Eurocode).

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