Cut off a 21-in.-long board for the shelves, rip it in the middle to make two shelves, and cut 45-degree bevels on the two long front edges with a router or table saw. Bevel the ends of the other board, cut dadoes, which are grooves cut into the wood with a router or a table saw with a dado blade, cross- wise (cut a dado on scrap and test-fit the shelves first!) and cut it into four narrower boards, two at 1-3/8 in. wide and two at 4 in.
Remember those fire safety tips you used to get in grade school, about the dangers of oily rags? It was linseed oil they were talking about. All oily rags are dangerously flammable. Linseed oil will self-combust. Linseed oil doesn't evaporate, it oxidizes. The oxidization generates heat, and the increased temperature increases the rate of oxidation.
Tools: I am inspired by tools, whether the tool is a good chef’s knife, a watercolor paintbrush or a lowly marking gauge. I find 18th-century tools particularly beautiful and elegant in their simplicity. To openly admit I am inspired by my tools makes me somewhat of a kook. But here, amongst friends, I suspect I am not alone. I’ve copied many tools in these books and sought tools that resembled these and been a happier person for it.
Originally published at the turn of the twentieth century by an anonymous “Practical Joiner,” Woodwork Joints: How to Make and Where to Use Them remains an incredibly useful and practical guide for deciding which joints to use and how to make them the right way for carpentry, joinery, and cabinet-making. Here is the carefully illustrated source on joinery that not simply a collectible classic, but also a requisite and invaluable tool that withstands the test of time, containing more useful information than any other woodworking guide. Inside are illustrated instructions for making all kinds of joints, from simple to complex, suitable for novices and experts. The comprehensive list includes joints such as glued; halved; bridle; tongued and grooved; mortise and tenon; dowelling; scarf; hinged; shutting; dovetail and many more. Instructions specify which tools are required (i.e., planes, gauges, saws, chisels, the try square for testing purposes, etc.) and how to use them on each joint. Extensive chapters on each type of joint contain precise illustrations that make identifying joints for different purposes easy. Not a word is wasted in this short but entirely comprehensive guide, making Woodwork Joints the perfect aid for any joinery project.
I don't see anywhere you mentioned the over all length of the bench top. A piece of 1 1/2" x 25" x 8' glued edge oak at Lumber Liquidators costs $192 including tax. Two piece is almost $400! Would that be better if I use two IKEA 1 1/4" x 25" x 74" solid Beech ($99 each plus tax) on top of a layer of 3/4" Birch plywood. That would be 3 1/4" over all.
A workbench needs to be heavy enough that it doesn't move under you while you're working, and stiff enough that it doesn't rack itself to pieces under the forces that will be placed upon it. It doesn't take many hours of planing a board or hammering a chisel for a worktable made of nailed 2x4s to come apart. Traditional bench designs use mortise-and-tenon joinery, which is strong and rigid, but not really suited for a novice woodworker who doesn't already have a bench.
Beyond the weight capacity, the Grizzly is also the largest table top on our list and in more ways than one. For a workspace, the Grizzly provides 5’ of length by 2 ½’ of width. There is not another table that really comes close to that size. Another size advantage of the Grizzly bench is the table top’s thickness. While the standard thickness of the table top for a quality woodworking bench is 1” with lesser models often offering only ¾” of thickness, the Grizzly provides a 1 ½” thick table top.