Garden Design. Wednesday , March 21st , 2018 - 03:01:23 AM
The practical application that I make of the Golden Ratio involves its sibling, the Golden Rectangle, in which the ratio of the short side to the long side is equal to the ratio of the long side to the sum of both sides (a/b = b/a+b) you probably did not know that landscape architects had to learn math. Numerically, the Golden Rectangle ratio is close to 1: 1.6, a proportion I regularly use to lay out terraces, patios, arbors, and lawns.
Another ratio may even be platinum, That is what I have always called the rule for step design advocated by landscape architect Thomas D. Church, often credited with creating the California style. Laid out in his seminal work Gardens Are for People, it says simply that twice the height of the riser plus the tread should equal 26 inches.
That means that if the riser is 5 inches, the tread (what you walk on) should be 16 inches. All I can say is that the rule is true, and I have used it from steep canyon faces to gentle changes of patio levels. A useful corollary states that 5 feet is the minimum width for two people climbing steps side by side.
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