Using a rectangular steel tube design called 3DQ, the width of the pillar is just 89 mm, compared with a claimed standard width of 124 mm. (evo.co.uk)
The cabinets come in standard widths, between nine and 48 inches, in three - inch increments. (styleathome.com)
Parents with stairs that are a non standard width may think there is no available solution to their problem, or that the installation of a suitable baby gate will cause damage to the walls or banisters. (babysafehomes.com)