17 Treads
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Please Note: 1 x Centre Stringer (sold separately) is required for every 1500mm span. (ie. if your stairs are 3600mm wide you will require 2 Saw Tooth Centre Stringers.)
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Please Note: 1 x Centre Stringer (sold separately) is required for every 1200mm span. (ie. if your stairs are 3600mm wide you will require 2 Saw Tooth Centre Stringers.)