06/04/2026
Reel 3 of 9 – Building the Oak Window Sill
This reel starts with a quick look at the finished window, complete with the oak sill, casing, reveals, and apron installed.
Then we head back to the workshop to build the sill. The main body of the sill is made from 3/4” material, with a solid 1-1/2” x 1-1/2” hardwood front edge added for strength and a more substantial profile. This is also the same thickness as the shelves on the bar.
All of the joints are cut using a finger-joint profile to maximize glue surface and create a strong, stable assembly. After machining the parts, everything is glued up and clamped into a single solid sill blank.
(That small piece i added at the back was insurance to make sure the sill was wide enough. As it happed, i ended up cutting off this piece when i came to the install. Better to have it and not need it.)
The final shots show the completed glue-up, followed by some hand-planing to flatten one of the joints ( not sure why it wasn’t flush) and bring the surface flush before sanding it smooth and preparing it for installation.