Will a 6-inch storage bin fit under my bed?

Measure from the floor the bin will slide on

1. Find the lowest point along the route. Measure from the top of the rug or carpet, if present, to the underside of the side rail. Check at both ends of the opening and under any brackets, crossbars, or other hardware in the bin’s path. Keep the smallest reading.
2. Measure one clear lane. Measure the opening between the legs, then measure how far back you can go before hitting a center support. Take those measurements across the whole footprint. If you rotate the bin, swap the width you need at the opening and the depth you need under the bed.
3. Check the space outside the bed. Measure from the side rail to the first obstacle in the room, such as a dresser or wall. For a straight pull, aim for more room than the length of the bin in the direction it travels, with enough space to get your hand around the handle and open the lid.

Make a full-size stand-in

Tape together a flat cardboard rectangle 33 inches by 17 inches. Attach rigid six-inch uprights at the four corners and in the middle, measuring the height from the underside of the base. Slide it in and back out along the same route you’ll use with the real bin. If the cardboard bends or catches, treat that as a failed pass.

Try the long edge facing you first. That takes a little more than 33 inches of clear width but only a little more than 17 inches of depth and straight pull-out space. Rotate it 90 degrees if the opening is narrow and the lane is deep. Test a second parking spot separately if you plan to use both bins.

For example, a 35-inch opening, 19-inch depth, and 22-inch aisle can work with the long edge facing out. But if a rug raises the floor under a bracket so the gap there is 5¾ inches, the six-inch bin still fails. At exactly six inches, there’s no room for the lid to bulge or the bin to tilt over a rug edge. A half-inch of extra height is a practical starting allowance. Check it with your own mock-up.