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Book Frame: Recycle a Mattress Box Frame into a Book Shelf!

Step 5Making the cut(s)

Making the cut(s)
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  • K:\Book Frame\SNV32417.JPG
  • K:\Book Frame\Book Frame Cuts.JPG
Now it's time for some carpentry. The finished boards are shown below. I've included some of the measurements I used to make my book frame, both as an image and an attached powerpoint file. These cuts can get a little tricky, due to the 45 degree element, but I got it done with a drill and a jigsaw (hopefully you have better tools at your disposal!). Here's the play by play:

1) Cut 9 boards that are 3.5" wide and 26.25" long
2) 3 of these boards will be the middle supports - Make the measurements shown and draw horizontal lines at each position
3) Refer to the Middle Supports blow-up in the center of the second image. First draw diagonal lines from the bottom line to the 3rd, then the 2nd to the 4th. Once that is done, measure 1.75" from the outer edge of the board along the top diagonal and draw a perpendicular line that connects the two diagonals. This area is represented in white in the image, and will be cut out of the board. Repeat for both the top and bottom slits.
4) The other 6 boards are the side supports. Make the measurements shown for the side supports and draw the corresponding horizontal lines.
5) Refer to the side supports blow-up in the center of the image. Draw diagonals connecting the lines as shown in the figure. Once that is done, measure 2.5" along the middle line. Then measure 1.25" from that point in opposite directions, and draw 2 new perpendicular lines to connect the diagonals. The area shown in bold will be cut out from the board. Repeat for both the bottom and top slits on all 6 boards.
6) Cut 8 boards that are 2.5" wide and 40" long. These will be the cross bars that support the books. Leave 4 of them alone for now. On the other four, make 0.75" deep notches as shown in the figure. These notches will help the boards stay in place while maintaining the structural integrity of the middle supports.
7) Lastly, take some scrap wood that is 1" wide and cut 4 strips that are 4" long and another 4 strips that are 8" long.
8) Sand and finish to your satisfaction!
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Author:LMO