Flute Ratio?

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Forum topic by kit posted 11-02-2010 04:31 AM 1109 views 0 times favorited 2 replies Add to Favorites Watch
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24 posts in 2945 days

11-02-2010 04:31 AM

A granite counter top is to be anchored at both ends with 4×4 posts, faced with 1×4 boards and finished off with cove molding in the “open” corners created by said boards. On each board, I want to route a series of vertical/parallel flutes using a core box bit. My question is with respect to the fluting, is there a ratio of flutes to spacing between flutes for optimum appearance? For example, on paper a layout with 3/8” on the left & rights sides and four 1/2” flutes with 1/4” in between each flute seems to look good and the total of these dimensions is equal to the 3 1/2” board width. I know to test on scrape wood but first would like to learn if there is an established pattern. Thank you!


-- Kit, Paso Robles, CA,

2 replies so far

View cabmaker's profile


1740 posts in 2983 days

#1 posted 11-02-2010 04:51 AM

Were it me I think I would lesson the field between the flutes and even narrow the 1/2 inch flute to what ever it takes to mill a fifth. Flutes and reeds are milled in odd numbers to be architectually correct. Sounds like your on the right track. Good luck JB

View GaryL's profile


1099 posts in 3005 days

#2 posted 11-02-2010 04:54 AM

I usually try to keep things symmetrical by keeping the spacing the same as the core box bit. The width of the piece may delegate the size and number of flutes.

I’ve used this pattern on several fireplace surrounds…

-- Gary; Marysville, MI...Involve your children in your projects as much as possible, the return is priceless.

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