Swanson Wood Magnet + 2×4 = Cheap-Ass Beam Level

What’s a wood magnet? It’s a level that press-fits onto a 2×4 to make one hell of a long beam level. Assuming you can find an un-bowed and un-warped 2×4, it sounds like a decent idea. Of course, that’s a pretty big if.
The simple horseshoe design sports three bubble vials each measuring on a separate axis.
I can’t imagine that this thing is going to be the most accurate instrument on the jobsite, but consider this: it’ll cost you about a quarter what a standard 4’ beam level would, even with the cost of an 8’ 2×4 thrown in. And you’re also quite a bit less likely to break the part that matters. So if you can live with the accuracy, it might be useful.
Wood Magnet [Swanson Levels]
Street Pricing [Google Product Search]
Via Amazon [What’s This?]
I think I’ll agree that this can’t be too useful (at least for 2×4’s)
I’ve seen something similiar used for leveling posts :
http://www.amazon.com/Great-Neck-Saw-11060-Fence/dp/B00004YZOP/ref=pd_bbs_3/103-6830410-8406224?ie=UTF8&s=hi&qid=1182881671&sr=8-3
I have one made by Stanley, but I can’t find it online.
They’re nice when you’re sinking a 4″x4″ post into the ground.
If you’ve got a way to rip a straight edge (ie: I’ve got a Festool saw and rails), it might be worth starting with a 2×8 or larger and ripping 3/4″ bits off either side to let the internal stresses settle ’til you’ve got a straight edged 2×4.
I’d just spend the few extra dollars for a real level, but there’s always a new way to use a tool…
I could see this working well on a metal concrete screed, but a Goldblatt magnesium 8 footer is around $80.
Why not use this with a Steel 2×4? Those are straight light and fairly cheap.