Roof trusses - what weight could they support from below?

[RrogerD]

Can I hang a block n tackle from the garage roof truss to lift an engine or is it going to end in disaster?

It's a BMW 2.5 litre engine. Weight 130kg

Could it be done if we put a bar across say three trusses?

Edit: should have said, it's a 6m span and bottom timber of the truss is 3" x 1.5"

 

[JohnD]

No.

 

[oldbutnotdead]

Very unwise. Make a tripod- 3 bits of scaff, 2 swivel clamps and steel wire rope to restrain the bottom of the legs.

 

[JohnD]

tool hire shop

 

[Captain Nemesis]

It's a BMW 2.5 litre engine.

Good luck bleeding the cooling system.

 

[charliegolf]

No.

Yet a full 200l cold water tank rarely pops down into the bedroom for a visit, does it?

 

[RrogerD]

Yet a full 200l cold water tank rarely pops down into the bedroom for a visit, does it?

Very good point!

 

[JohnD]

a garage seldom has a 200kg water tank balanced on "6m span and bottom timber of the truss is 3" x 1.5""

 

[charliegolf]

130kg, distributed over several trusses is not going to be a problem.

 

[Captain Nemesis]

Could it be done if we put a bar across say three trusses?

Hang 65kg from one and see what happens.

If it fails there shouldnt be any repercussions from the loss of one truss.

Plan B - what are the walls made of?

 

[lostinthelight]

My mate borrowed my acrow props and placed them either side of the car directly under the truss, guess you could do the same with some 4x4 fence posts