1. Draw a Template of the sides, floor, and roof. One of the side templates will be wider than the other, as two sides will be .25" wider to account for the thickness of the material at the corners. Google TARDIS and there are plenty of images to inspire your design.
There are 4x2 square door panels on the TARDIS, with the top ones each being a window with 3x2 panes
I went with the existing dimensions from the fruit box, so the height was 3.5".
It worked out nicely that the door panels were 0.5" square
Panel frames were 1/8" wide, and 1/4" to the edge.
Which left just the right amount of room at the bottom and top, including the space for the 'POLICE BOX' sign.
2. Cut out all the door panels on the main template using a sharp knife. We will use this to draw the panels with a Sharpie onto the doors after they have been painted.
3. Using the templates, mark the wood and cut out the shapes using cutting medium of your choice. I used a mitre chop saw. Exercise extreme caution and play safely.
4. Position the template on the wood and draw the top two panels on each side which will be the windows. Then cut out the panels - I used a 1/2" wood chisel which worked perfectly.
5. Cut out the window material: I used some strips of a translucent vellum paper that we had left over from something. You could use plastic packaging that's been lightly sanded, or probably white plain paper would be just fine.
6. The roof has two pieces that will be glued together before you paint all the pieces. I then mixed up an approximation of 'TARDIS Blue' using bright blue, black, and grey. Paint all pieces.
7. Glue the windows on the inside back of each side, and then draw the panes - I used a thin black Sharpie. There are 6 panes on the TARDIS, so one horizontal line and a couple of verticals. I drew lines on both sides of the paper.
8. Now draw the rest of the door panels using sharpies. I used a light blue for the bottom/left sides of the square, and black for the top/right sides. You can't see it too well in the pics, but it makes it look like the panels are recessed. I copied this effect from mradau
's rocking TARDIS bedroom door
. Thanks for the inspiration.