The PDF includes two plans for what are sometimes called floating shelves. These are pretty stylish bookshelf plans, and the construction is really solid.
Using 4'x8 plywood flooring instead of hardwood flooring. Sealed here with just polyurethane. Saw it on Everyday Cheapskate.
Invisible Bracketed (Floating) Shelves DIY: I really want to get some reclaimed wood and make custom shelves in the alcove, but drilling holes and injecting resin scares me.
We used 2'x2' biscuit-joined birch plywood for our basement floor. Here's a picture of it.
Ana White | Build a Triple Pedestal Farmhouse Bench | Free and Easy DIY Project and Furniture Plans / Farmhouse table
More Like Home: Day 23 - Build a Chunky Bar Stool, less than $10 per stool. Would work great outside.
Reclaimed Pallet Wood by skramstadprimitives on Etsy, $165.00
Fabulously Free Coffee Station--I pinned this to show a friend but then realized, this
Ana White | Build a Modern Vertical Slat Top Console | Free and Easy DIY Project and Furniture Plans
Ana White | Build a Simplest Armoire | Free and Easy DIY Project and Furniture Plans