How far apart should vertical iron railings be on a 1st floor terrace in the UK according to builders regs ?

Question

How far apart should vertical iron railings be on a 1st floor terrace in the UK according to builders regs ?

Answer 1

you might be interested to know that the reason for the 100mm dia ball test is intended to prevent children from being able to push their heads through.

Answer 2

Less than 100mm (ie 99mm)

The test used to be 'to prevent the passage of a 100mm sphere'. Railings therefore are normally spec'd at 100mm centres. Refer Part K of the building regs. The minimum height is also controlled (1100mm).

Answer 3

100mm. Not quite 4".

Answer 4

contact your local council, building control dep/t for local regulations