This section is from the book "Box Furniture", by Louise Brigham. Also available from Amazon: Box Furniture.

This simple device is an excellent substitute for extra chairs. The set has a seating capacity for nine persons, seating them according to age or size, two children being seated upon each of the two larger benches. Two sets were used constantly in the Sunshine Cottages.
The outside dimensions of the finished seats are as follows:
1 seat 8 in. deep, | 9 in. wide, | 16 in. long |
l " 81/2 " | 10 " | 18 " |
1 " 9 " | 11 " | 20 " |
l " 9 1/2 " | 12 " | 22 " |
1 " 10 | 13 " | 24 " |
1 " 101/2 " | 14 " | 26 " |
1 " 11 " | 15 " | 28 " |
The benches are made from boxes by removing the covers and sides, one side being replaced with a thicker piece forming the seat.
Bodies. 7 Boxes varying in size, but each sufficiently large to make one of the benches. The ends of the boxes must be 3/4 in. thick and the bottoms not more than 1/2 in. thick.
Seats.
1 piece 3/4 in. thick, | 8 in: wide, | 16 in. long. |
1 " 3/4 " | 81/2 " | 18 " |
1 " 3/4 " | 9 " | 20 " |
1 " 3/4 " | 91/2 " | 22 " |
1 " 3/4 " | 10 " | 24 " |
1 " 3/4 " | 101/2 " | 26 " |
1 " 3/4 " | 11 " | 28 " |
Remove the covers and both sides from the boxes, and reduce the remaining portion of each box to form a bench. The following table specifies the outside dimensions of each body-piece before the addition of the seat.
1 body-piece 8 in. deep, | 81/4 in. wide | , 16 in. long |
1 " 81/2 " | 91/4 " | 18 " |
1 " 9 " | 101/4 " | 20 " |
1 " 91/2 " | 111/4 " | 22 " |
1 " 10 | 121/4 " | 24 " |
1 " 101/2 " | 131/4 " | 26 " |
1 " 11 " | 141/4 " | 28 " |
Nail a seat to each body-piece of a corresponding size, using care to have the ends of the body-piece square with the bottom, which then becomes the back of the bench. Use 2 inch wire nails to secure the seat to the ends. When completed, the benches should all fit one within the other as shown. Paint or stain them any color, dark green being suggested as serviceable.
 
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