When we first took a look at the Rockwell Jawhorse for review, we realized that it bears as much resemblance to a sawhorse as a Porsche does to a Conestoga wagon. Sure, they might roughly be the same species, but otherwise, the Jawhorse and the sawhorse are light-years apart.
The Frustration of Using Sawhorses
Sawhorses are cheap--just slap some 2x4's together, or if you really want to get fancy, buy some sawhorse clamps from The Home Depot--but cheapness does not make quality.
Problems include: getting all eight legs (yes, remember it's 8 legs) leveled; cutting into the sawhorse with your circular saw; flimsiness; difficult to transport compactly; cannot easily clamp your work down; so forth and so on. Might it be worth shelling out some money for a real sawhorse?
Heavy, Substantial, and Solid
The Rockwell Jawhorse and its Plywood Jaw are nearly 100% steel (just minimal touches of plastic), a perfect, immobile platform for even heavy items like 3/4" plywood sheets...or heavier.
With its three legs, it forms a tripod that rests on practically any surface. Believe me, you don't want four legs; you would never get the thing correctly in position. Don't worry, the legs splay far apart and have wide feet, so the Jawhorse will not move when you saw, drill, or pound on it. The Jawhorse feet are padded, so you can easily place it on wood or tile flooring without scratching.
The Jawhorse's Jaw
As you might imagine, the very name Jawhorse has great meaning. Think of it as two words: Jaw Horse.
Yes, it's far more than just a solid surface to place items. It's like a giant, Transformers-sized hand that will literally grab massive workpieces and hold them firm while you do your stuff. Jawhorse product literature shows the product holding incredibly large items in vertical positions. As if that wasn't cool enough, the Jaw is operated by means of a foot pedal that completely frees up your hands and allows you to push down harder.
Soft pads on the Jaw protect items from denting and scratching and help prevent the items from slipping out.
Plywood-Holding Capacity and Some Wish-List Items
As a final note, the Jawhorse can--and will--hold full 4'x8' foot sheets. For any home remodeler, that's a big deal since four-by-eight is the standard size for plywood, drywall, paneling, and more. However, you would need to purchase the optional Rockwell Jawhorse Plywood Jaw to make this work.
Now that we're in the middle of big basement finishing project, we've used the Jawhorse a lot and found it to be phenomenal. If you want to know what Jawhorse does in just a few metaphorical sentences, it's this:
Jawhorse is like your bench vise. Except, instead of opening a few inches, it opens 4 feet wide. And its jaws are padded with rubber. And it's portable, not attached to your workbench. You can cantilever your material out crazy-far, yet the jaws still hold the material and the Jawhorse doesn't tip over.
Due to this experience, we highly recommend you pick up your own if your planning a job of this size and proportion.