Top 28 Surprisingly Awesome Garden Bed Edging Ideas - When vegetables that are growing in raised garden beds utilizing the Square Foot Gardening approach, your beds will need to be sectioned off into one-foot sections called putting squares. Each putting square comes with an address used to identify the square.
While the methods for addressing change, one of the most straightforward would be to use letters for numbers and columns for rows, and also the mix of the two identifies the square. Numbering starts in the upper left corner and proceeds left to right, top to bottom. I've yet to locate a commercially available garden bed for marking putting squares off with an enclosed attribute.
I wish somebody would create a Square Foot Gardening grid that you can insert into a raised garden bed to mark off squares, but until this is available, if you wish to work with the Square Foot Gardening process, for marking squares off you will need to formulate your own system. The first step is to compute the dimensions on the interior of the garden bed, which will be width and the length that's actually usable for planting.
The 4x8 foot garden beds I purchased, for example, are 4x8 feet from end to end. But when you connect the planks in the corners, you lose several inches, therefore the interior dimensions of the garden bed are actually a few inches short of the advertised size. In my own instance, my beds have an interior dimension of 46.25 inches x 94 inches. I refer to these dimensions as Usable Span for the remainder of the post.