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Build a Window Flat

Here are step by step instructions to build a window flat for our production of 12 Angry Men. We will need to build two identical flats.

  1. Gather Tools:
    • Drill with 1/8” drill bit for predrilling screw holes
    • Impact driver with star bit
    • Miter Saw
    • Tape Measure
    • Pencil
    • Speed square
    • Screws 2”

  2. Cut Wood:
    All wood for the frame is 1” * 4”
  • 2x 7’-10 1/2” Stiles
  • 4x 4’-0” Rails and Window Sides
  • 2x 3’-10 1/2” Toggles
  • 2x 1’-10 1/2” Braces
    Wood needed

3 Step 1 : Predrill and 2” screw the top and bottom rails to the stiles. The long stiles go inside the rails. Use the speed square to ensure all the corners are right angles. When you are done, make sure the rectangle measures exactly 4’ * 8’.


4 Step 2: Predrill and 2” screw the toggles into place. Ensure the corners are at right angles and they are placed accurately.


5 Step 3: Predrill and 2” screw the window sides into place. The inside dimensions of the window opening should be 2’ * 4’.


6 Step 4: Predrill and 2” screw the braces into place. These should be as close to centered as possible within a 1/4”.


7 Step 5: Skin the flat with luan plywood.