Raised Bed Garden Hoop Covers - When growing vegetables in raised garden beds utilizing the Square Foot Gardening method, your beds will need to be sectioned off into one-foot segments called planting squares. A 4x4 foot garden bed, for example, will have 16 planting squares (because there are 16 square feet in a 4x4 bed). A 4x8 foot garden bed will have 32 planting squares. Each planting square has an address used to identify the square.
While the methods for addressing vary, among the most straightforward would be to use letters for columns and amounts for rows, as well as the square is identified by the combination of the two. Numbering beginnings in the upper left corner and goes left to right, top to bottom. As an example, planting square A1 is the upper left hand square (1st column, 1st row), while planting square C4 is the square in the 3rd column and the 4th row. I've yet to find a garden bed that is commercially available for marking off planting squares with an enclosed attribute.
I wish somebody would develop a Square Foot Gardening grid that you can fit into a raised garden bed to mark off squares, but until this is available, in case you wish to work with the Square Foot Gardening process, for marking off squares you will need to formulate your own personal strategy. Step one will be to calculate the dimensions on the interior of the garden bed, which can be width and the length that is truly useable for planting.
The 4x8 foot garden beds I bought, for instance, are 4x8 feet from end to end. But when you connect the planks at the corners, you lose a few inches, so the interior dimensions of the garden bed are really a few inches short of the advertised size. In my own case, my beds have an interior measurement of 46.25 inches x 94 inches. I refer to these dimensions as Usable Length for the remainder of the particular article.