Standard (Straight Edge) Window Sill Molds
3/4” Sill Molds, 3-Cavity
Part Number | Description | Width (A) | Length (B) |
22714 | 5" x 120” Sill - 3-Cavity | 5" | 120" |
22715 | 6" x 120” Sill - 3-Cavity | 6" | 120" |
22716 | 7" x 120” Sill - 3-Cavity | 7" | 120" |
22717 | 8" x 120” Sill - 3-Cavity | 8" | 120" |
22721* | 9" x 120” Sill - 3-Cavity | 9" | 120" |
22718 | 10" x 120” Sill - 3-Cavity | 10" | 120" |
3/4” Sill Molds, 4-Cavity
Part Number | Description | Width (A) | Length (B) |
22713 | 4 x 120” Sill - 4-Cavity | 4” | 120” |
3/4” Sill Molds, 6-Cavity

Part Number | Description | Width (A) | Length (B) |
22684 |
6 Cavity - each cavity 2" x 146" x 3/4" (5.08 x 370.84 x 1.9 cm) |
2” | 146” |

Corniced Edge Window Sill Molds
Cornice Window Sill molds feature a corniced edge treatment (shown at left). Whether it be a window sill, a fireplace mantel, or a bookcase shelf, you can cast beautifully contoured corniced leading edge sills. These male molds can be cast quite easily without use of a female, so a female is not offered. To cast, pour the main mold volume normally, let it kick, then lay the mold on its side (it's built to accommodate that), and finish pouring the front lip.
For each of the following, block down using special End Stop Divider Part Number 010866.
Cornice Sill molds are available in a variety of lengths and depths:

180-18 - 5" Corniced Window Sill Mold (3-7/8" Depth Inside) x 122"L - #228185

180-18, 9-5/8" Depth Corniced Window Sill Mold (8-3/4" Inside Depth) x 122" L - #22818
Note: this mold has previously been referred to as a 10” depth sill mold, but is actually 9-5/8” depth.
Cast weight is 85 lbs (39 kg). Net weight of Male Mold is 115 lbs (52 kg). Net weight of Female mold is 57 lbs (26 kg).

180-18, 12" Depth Corniced Window Sill Mold (10-7/8" Inside Depth) x 146"L - #22874

180-18, 24" Depth Corniced Window Sill Mold (23" Inside Depth) x 146"L - #22873
Related Accessories:
Special End-Stop Dividers are available for blocking Corniced Sill Molds down to any desired length. They are ordered based on the depth of the mold - either 5", 10", 12" or 24":