How much can I hang off this wall?

[nordita]

Question

I want to hang heavy gym stuff off this wall. Do you know what's a sensible amount of weight I can put on there?

Wall

The wall is 18mm osb -> 40mm celotex ->100mm dense concrete block. The wall was built within 2 years and has
been kept dry with cladding.

Loads

The barbell rack can hold 160kg of barbells.

There are 6 horns for holding olympic weight plates. Each rated for 100kg. They would have this load spreading away from the wall up to 325mm.
Obviously these won't be maxed out but I do have 320kg of weights to place on them.

Total weight is around 480kg, adding 50% of "safety" its 720kg total.

Attaching question

The horns will be placed horizontally on the bottom.

Each horn has 4 holes for fixing and came with enough wall plugs and M10 75mm Hex Lag Screws which I feel are too short to get adequate depth in the blocks.

I was planning on using 7.5x110mm concrete screws instead.

Pictures

 

[JohnD]

The wall is 18mm osb -> 40mm celotex ->100mm dense concrete block.

No wooden studs, you say?

Are the blocks hollow?

 

[nordita]

No wooden studs, you say?

Are the blocks hollow?

Yes there are 40mm thick studs but excluded them as I won't be able to drill through all of them.

Blocks are solid dense 7.3N 20kg.

 

[nordita]

No wooden studs, you say?

Are the blocks hollow?

Yes there are 40mm thick studs but excluded them as I won't be able to drill through all of them.

Blocks are solid dense 7.3N 20kg.

 

[JohnD]

you could drill through the studs and into the blocks, and bolt a few hanging rails, to which you can fasten your equipment. If it was me I might use 8mm steel studding fixed into the blocks with resin rather than plugs. the wooden studs will provide support to prevent deflection by crushing the foam or bending the fixing.

You could also put a frame resting on the floor, to take the deadweight, and fixed to the wall to prevent it toppling.

 

[Tigercubrider]

I’d certainly use something to support the deadweight, either joining new metal to the existing near the floor or adding blocks of the thing to rest on and carry the load to the floor.

You could use concrete screws or epoxy studding but use short bits of electrical conduit to act as spacers so that the celotex doesn’t get compressed and the wall mount drops.

 

[kp00110]

Maybe some vertical uni-strut rails from the floor (so like a basic ladder frame) to carry the vertical weight down through the floor, and pin back to the concrete blocks

Would only push the frame out another 50mm

 

[kp00110]

Something like this maybe, plus or minus the pad feet, and bolt your rack to the vertical parts. Believe they are called H frames