Plural of baluster; multiple short decorative pillars or posts arranged in a series to support a railing.
Simply the plural form of baluster, following standard English pluralization rules. The singular form 'baluster' derived from Italian and Latin sources in the 1600s.
The rhythm and spacing of balusters is carefully calculated by architects—get the spacing wrong and you create a safety hazard, but get it right and you create a visual pattern that feels both safe and aesthetically pleasing, which is why classic staircase designs are still copied today!
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