Beekeeper's Bungalow Update: Site-Built Window Casings

We're building and pre-assembling site-built window casings using pocket-hole joinery - and we're doing it on the ground as opposed to up in the air on ladders. This makes for an easy one-piece installation with joints that are held tightly together preventing gapping as the house weathers. This method worked well on our tiny house so we're doing it again on the Beekeeper's Bungalow. 

Recommended: The idea for our pocket-hole frames was inspired by Mike Vacirca, Fine Homebuilding No. 205 (September 2009), who shares a similar method using biscuit joints.

Pocket-hole joinery is simple, requiring only a drilling jig, clamp and screws. 

Pocket-hole joinery is simple, requiring only a drilling jig, clamp and screws. 

Holes are drilled at 15º angle to accept a seated screw. The technique is said to date back to the Egyptians, who used dowels in lieu of screws.

Holes are drilled at 15º angle to accept a seated screw. The technique is said to date back to the Egyptians, who used dowels in lieu of screws.

Fully assembled double window casing for our loft space. To size, we simply measured the size of the windows and added 1/8" for a snug fit. The head casing can be beveled at 5-10º or a decorative crown moulding can be attached post-installation (that's what we'll be doing).

Fully assembled double window casing for our loft space. To size, we simply measured the size of the windows and added 1/8" for a snug fit. The head casing can be beveled at 5-10º or a decorative crown moulding can be attached post-installation (that's what we'll be doing).

For our casings we enjoy the look of a window sill. This sill is 2-1/2" deep with a 15º bevel to shed water, as well as a 1/8"-1/4" drip kerf to prevent water creeping under the frame.

For our casings we enjoy the look of a window sill. This sill is 2-1/2" deep with a 15º bevel to shed water, as well as a 1/8"-1/4" drip kerf to prevent water creeping under the frame.

The entire casing is built from cedar and sanded, primed & painted before installing.  For heavier traffic areas where the sills might get bumped, we've used douglas-fir stock.

The entire casing is built from cedar and sanded, primed & painted before installing.  For heavier traffic areas where the sills might get bumped, we've used douglas-fir stock.

The window casing installed and ready for siding! 

The window casing installed and ready for siding!