How to Build a Rotating Canned Food Shelf

Storing canned food in your kitchen cabinets is an inefficient use of space and you will often find old cans in the back. This easy-to-build shelf system will solve the problem by rotating the cans. The cost is a small fraction of the price of retail canned food systems. There are many variations, so modify the plans to suit your needs and abilities.

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This article will cover a 5-shelf system that is 32 inches (81.3 cm) wide, 24 inches (61.0 cm) deep and 64 inches (162.6 cm) tall.^{[1]XResearch source}
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Cut the plywood on a table saw or with a circular saw.
- Cut one full sheet in half length-wise. From each half, cut a shelf at 32 inches (81.3 cm) (should leave 64 inches for the sides).
- Cut the other full sheet in half length-wise also. Cut each half in thirds at 32 inches (81.3 cm) each.
- Cut the half-sheet of plywood at 32 inches (81.3 cm). Cut the 32x48 piece in half (24x32). Set the remaining 16x48 piece aside for later. You should have 2-24x64 and 10-24x32.
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Using a router and straight edge, rout slots into the sides ³⁄₄ inch (1.9 cm) wide and ¹⁄₂ inch (1.3 cm) deep. (An alternative is to attach rails that the shelves will rest on. The slot method is stronger and will not interfere with the rolling cans.)^{[2]XResearch source}
- The shelves need to have a 1:12 slope (1 inch drop for each 12 inches run).
- For standard cans, the distance from the top of the input shelf to the top of the corresponding output shelf is 8 inches (20.3 cm).
- For standard cans, the distance from the top of the input shelf, to the top of the next output shelf is 4 inches (10.2 cm).
- For standard cans, the input shelf is 3.5 inches (8.9 cm) shorter than the output shelf.
- For larger cans, add 1 inch (2.5 cm) to these dimensions.
- Draw outlines for all slots.
The finished outside width of the shelf system will be 32 inches (81.3 cm). The shelves will fit in a slot ¹⁄₄ inch (0.6 cm) deep. Therefore, the width of the shelves is actually 31 inches (78.7 cm). Each input shelf also needs to be trimmed on the back to allow a space for the can to drop. For standard cans, this gap needs to be 3.5 inches (8.9 cm).
Insert the shelves into the slots and place the other side on top.
Put two screws in each shelf.^{[3]XResearch source}
^{[4]XResearch source}
Attach the pieces that were cut from the input shelves to prevent the cans from falling off the back.^{[5]XResearch source}
Turn the unit over so the front is facing up. Attach the 2x32 inch pieces to block the cans from falling out the front.^{[6]XResearch source}
Stand the unit upright and attach it to the base.
Each row will need to be about ¹⁄₂ inch (1.3 cm) wider than the can. On the table saw, rip ¹⁄₄ inch (0.6 cm)-wide strips from plywood, MDF, or dimensional lumber. MDF and lumber work best. Attach them to the shelves with wood glue.
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One problem you may have is the cans getting misaligned when they drop down.
- A solution for this is to add a divider connecting the row dividing strips, filling the gap. Cut cardboard in a trapezoidal shape to fit over the two row dividers. Cut out the center material of the cardboard and glue the flaps to the row dividers.
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Another problem occurs when the gap is too large for the cans. The can can get blocked, preventing other cans from dropping down.
- A solution for this problem is to glue wedges at the back of the lower shelf. This will cause the can to roll forward before the next one locks it in. The wedges can be cut from the same material used for the row dividers. They should be large enough to move the can forward.
Add labels to the front of each row to identify the contents and load cans in the top portion of each shelf.

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Tips

Pre-drill your holes for the 2 inch (5.1 cm) screws by drilling a pilot hole completely through the dado (routed) slot. This was you will know exactly where to place the screws.
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A simpler design is possible when you have easy access to the back. This allows you to load the cans in the back and they simply roll forward.
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The casters are very important. Experience has shown the mobility they add is a valuable convenience.
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Warnings

Always wear safety glasses when operating or using any type of power tool.
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Power tools can be dangerous; stay attentive and use with care.
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