Now look at the top shelf. Run all of your smaller sized books side by side across the top shelf. If you have multiple book cases side by side, run these books across all of them. The books should be all the same height if you can. And idealy they should run the complete width of the shelf. This will give a visual frame to the book shelf.
Steel prefabricated garage shelving is the best choice in this category. You can also purchase plastic shelving, which is OK for light items, but does not work well for storing heavier items. The big disadvantage of steel shelving is that the shelves cannot be cut to size. You are forced to work with standard measurements for depth and length of the shelves. Also, be sure that there are at least two different settings for shelf placement on the frame. The adjusting pins must be heavy-duty and should have something in place to prevent them from working loose or becoming accidentally dislodged.
The final consideration when using prefabricated garage shelves, especially those designed for heavy loads is that you find some way to attach them to the wall, or create some other form of support that will prevent them from tipping and creating a danger to friends and family members.
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