Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to make a garden shelf [title] Attach frame supports to the back of the frame. [step] Each tier of this shelf will be comprised of one frame. The front and back of the frame are formed by 96 in (2.4 m) 2x4 boards.

Ending1: You can use two or three support boards to support the shelf. Frame supports also lower the shelf to a point that you can't be damaged; this helps to allow the rest of the shelf to attach well. Ending2: They should provide a basic planed base for this shelf. The rear and front frames should be fastened to both sides with wood screws. Ending3: These support the base of the shelf, making it easy to lift the shelf and lay it flat. [substeps] In some cases, a frame support brace can be made by securing two planks of 1/8 inch (. Ending4: There are four supports for each frame, and each support consists of one 21 in (53 cm) 2x4. Measure and mark where your supports will go with a tape measure and pencil.

Answer format: ending1/ending2/ending3/ending4