Thicker wood will be able to support more weight. If you have an unfinished garage, you can use the 2-by-4s in the wall ...

The shelves can be made from spare wood or plywood, or ... you can then find more possibilities for storing any common garage items. The great thing about this no-frills, squared-off design ...

Extra storage shelves are always a bonus, but they're even better when they're multi-functional and can also serve as tables.