You can usually feel sheathing nails which are driven into rafters through the underlayment attach a jack by driving two 16d nails never roofing nails into a rafter.
Ratchet style roof jack.
While ratchet type jack stands are safe enough pin type stands are almost indestructible since the locking pin makes it impossible for the supporting bar to slip through the base.
Vestil trailer stabilizing jack ratchet beam 40 000 lb.
Rhino rack 43175 pioneer pickup kit ratchet style set of 4 102 00 the pioneer pickup kit allows you to strap down items to your pioneer system very quickly and easily as the ratchet straps come with loops on the end.
Esco screw style jack stand 20 ton capacity model 10803 not yet rated only 299.
Safe working load for 5 16 grade 70 3 8 grade 70 or 3 8 grade 80 chain pack of 4 by peerless.
Free shipping on eligible orders.
Roof jacks provide a stable surface to work increasing safety and making it easier to apply roofing.
Those types of jacks have been around for a long time.
I have used similar stands for holding up a honda accord.
I trust them more than the ratchet style because they are made from extruded steel and not cast steel.
This ratchet jack can adjust from 20 7 16 to 29 7 8 and has grease zerks and a 1 clevis pin.
This is a heavy duty ratchet jack with 1 1 4 acme threads.
This type of jack stand is the preferred stand for heavy vehicles because it is the strongest and most reliable stand to use in this application.
4 9 out of 5 stars 111.
5 0 out of 5 stars 1.
The standard scissors jack provides a sandwich construction bearing design to assist in screw operation.
I never had a problem.
Tooth gear design of the scissor arms ensures straight line vertical extension and retraction.
Shop 4 ratchet jack at northern tool equipment.
Double lead acme thread drive screw is designed so the jack raises quickly and the crank handle turns easily.
Myers tire supply phoenix 6 ton ratchet style jack stand pair.
Lifting capacity 39 1 2in.