One piece folding Bench and Picnic Table
Changing stock size and/or table length
Changing a stock size
This project calls for two stock sizes - 90 mm x 45 mm (1½" x 3½"), and
90 mm x 32 mm (1¼" x 3½").
The latter is readily available in some places, but not so in others.
Ideally, if you can source or obtain both stock sizes all the better, but if you can only source the 90 mm x 45 mm (1½" x 3½") stock which is more widely available, then the following changes to the plans would need to be made:
The bolts would need to be ½" inch longer (there are only four),
Pieces (K - longer seat boards) would need to be 1" longer, and pieces (m - tabletop boards) would need to be 1½" longer.
Pieces (l - shorter seat boards) would remain the same.
To use a different stock size or change the length of the table apply The 'The formula' below.
Changing the table length
You can change the overall length of the unit simply by changing the length of the tabletop boards, the seat boards, and the bolts. But there is a formula...
The formula is worth considering if you want to make the table and seats longer (or shorter), or use a different stock size for the side frames.
The formula -
The difference in length between the shorter and longer seat boards is the sum of the thickness of four side framing members.
For example, if the side framing members are 45 mm (1½") thick, four times that is 180 mm (6"). Therefore 180 mm (6") will be the difference between the length of the front and rear seats boards.
The difference in length between the tabletop boards and the longer seat boards is the sum of the thickness
of two side framing members plus 50 mm (2") for the end overhangs.
For example, if the side framing members are 45 mm (1½") thick. Two times that is 90 mm (3"), and plus the 50 mm (2") overhang = 140 mm (5").
Therefore, In that case the table boards will be 140 mm (5") longer than the longer seat boards.