If the plans are too small right click on the image and select ‘save as’ to save it to disk. The image will be bigger if you view it there.
The idea with these plans is to give you easy access to the wood, while allowing air to circulate. I recommend making it out of maple. Each rack section is made of two uprights with an upper and lower spacer. You may need an extra pair of hands to put it all together. You should load up your lumber rack evenly on each side. I put the heaviest items at the bottom.