Compound Miter Angle For a 6 Sided Planter 15 Degree Slope
Miter 29.15° / Bevel 7.44°
- 6 sides
- Slope from vertical: 15°
Methodderived from the panel face-normal geometry of a regular 6-sided frustum — see /tools/angle-calculator/ for the full derivation.
Slope is measured from the HORIZONTAL here (0° = flat frame) — some published tables measure tilt from the vertical instead, which gives the same physical cut with different-looking numbers. Confirm which axis your saw calls which before cutting a test piece.
A 6-sided planter box with sides sloped 15° needs a 29.15° miter and a 7.44° bevel — the shape sold in most garden-centre "hexagon planter" kits, which is why this combination gets looked up more than any other compound angle on this site.
Why this one specifically
Hexagonal planters are a genuinely common real-world build, unlike the pentagon and octagon versions, because six sides read as "round" to the eye at typical planter sizes without the extra panel-cutting work a larger side count demands. At 15° of flare the bevel angle (7.44°) stays small enough that most benchtop table saws handle the rip cleanly in one pass, which isn't guaranteed once the slope or side count climbs — the 8-sided planter on this site, for comparison, needs a shallower slope specifically to keep its bevel manageable at a wider stance.
What moves the number
Worth flagging plainly: this figure treats a straight-sided, unflared hexagon as zero and counts slope upward from there, while some shop-published compound tables count the same physical lean the other way, starting from vertical instead. Both saw settings move together whenever side count or slope changes — there's no adjusting the miter without the bevel following it.