I clamped the top to the side of the base, as I had done before, so that the edge with the knot would be easy to work with. I mixed up some ordinary five-minute epoxy and added just a touch of black epoxy pigment. I applied this freely. After about twenty minutes I checked on it and found that in the deepest spot the void wasn't entirely filled, so I mixed up another batch and added more. After that had cured for a bit I eased the top to the floor and applied a coat of oil to the bottom side. I planned on attaching the base to the top the next day, and I wanted the bottom side oiled to keep it from absorbing moisture.
I find furniture takes on new meaning when separated from the sterility of an art museum (such as the Philadelphia Museum of Art’s American Wing. Maybe that’s why I prefer the museum’s period rooms). Jeffrey P. Greene’s book is perhaps my favorite of recent period woodworking texts for its ambition and helpful exploded diagrams of furniture in its appendix.
I'd decided on an oil-and-wax finish. Oil finishes are by no means the toughest. In fact, they're really rather pathetic, so far as protecting the wood goes. But they're easy to apply, and not even the toughest finish will stand up to the abuse that a workbench will suffer, so it's more important that it be easy to repair. Wax is usually used to add a high gloss. On a bench, it's there to keep glue from sticking.
 6. The Complete Book of Woodworking by Tom Carpenter. Another great reference book you'll come back to again and again. The latter half contains a bunch of projects you may or may not end up making (I bet you won't) but the details covered in the first half are as good as any overview-style book I've come across. When I want to make sure my process is up to snuff when I'm working on a ManMade post, this is the one I check first. 
Mine is similar but a bit more robust. The top is a sandwich, two 18mm sheets of WBP ply with an 18mm mdf filling. The legs are mortise and tenoned together, the ends glued and pegged, the stretchers are joined with long bolts so it comes apart. I stiffened it by adding a very closely fitted cabinet underneath (it had to go in dead square) and it is now absolutely rock solid.
All glue & stain benches are made using a solid maple frame for lasting durability and strength. Side Clamp Benches are made specifically for bar clamps, and are used for gluing projects or clamp storage. Benches feature an open top with 17 sets of 3/4"W grooves that accept bar clamps measuring 3’ and over. Lower center rail is adaptable for storage of hand screws and C-clamps. Side clamp benches are available with or without a drip pan. Glue & Stain Benches are made with a 1-1/4” plywood top covered with heavy-coated galvanized steel. Bottom shelf has a 4” rear retaining lip. Glue and stain benches are available with or without casters. Limited Lifetime Warranty.
Lay a leg flat on your work surface, with the countersink side of the thru-holes down. Stick a piece of threaded rod in each hole. Take a stretcher that is marked to have one end adjoin the top of this leg, stick a dowel center in its dowel hole, line it up against the leg, using the threaded rod for positioning, You want the top of the stretcher to be even with the top of the leg, or just slightly above it. Give the end of the stretcher a whack with your rubber mallet. This will leave a mark indicating where the matching dowel hole in the leg needs to be drilled. Repeat with the lower stretcher than adjoins this leg. Then repeat for the other leg that will form this trestle, and the other ends of the two stretchers.
Grizzly is a company currently undergoing an upheaval. This brand was once known as a manufacturer of professional grade tools and equipment for woodworking products. Though, in recent years, that reputation has begun to slip a bit since being bought by the Chinese company SIEG. These days, whether the Grizzly product stands up to its previous standards of excellence often has more to do with what you are buying than the company itself.