The edge profile is the shape machined into the front of the sill — it sets whether the piece reads modern or traditional. Here are the six profiles we offer and where each one fits.
Six machined edge profiles, applied to the top arris, bottom arris or both. Outside corners can be clipped or rounded; inside corners on return sills can be routed to a 3/4-inch radius — each corner independently.
Softened square arris — clean and contemporary
45° chamfered face for a crisp shadow line
Rounded edge — the classic sill profile
Concave scoop for a soft, recessed shadow line
S-curve detail for traditional millwork
Reverse S — a cove flowing into a round
Profile one face or both
Routed ear corners, per side
Sharp intersection where allowed
Visual fronts to 4" from 3/4" stock
Any profile can be applied to the top arris, the bottom arris, or both edges of the front face. Profiling just the top keeps a flat underside; doing both gives a fully sculpted front. On thicker sills a laminated build-up lets the visible front read as 2", 3" or up to 4" deep while starting from 3/4" stock.
Outside corners can be left square, clipped or rounded. On return (horned) sills, the inside corners where each ear meets the body can be routed to a 3/4" radius to wrap a bullnose drywall corner — set independently per side — or left square for a crisp intersection. See the measuring guide for how returns are measured.
You can preview every profile live on your own sill — open the configurator, and the drawing updates as you change the edge.
Eight steps, a live drawing, and a firm quote in one business day.