Over garage door storage

[Premiershipman]

Would appreciate opinions on my idea to create a storage area above my garage door.

Essentially I have a single garage which is getting cramped with tools/materials/kids bikes etc and there is a lot of dead space above the runners and brackets for the garage door.

I want to put up a steel framework above the garage door bracketry but it is only to be anchored off the 3 garage walls as I don't really want to have vertical sections attaching to the ceiling trusses at the front edge of the steel (where there is no wall), as there is a lot of stuff already piled in the garage loft area above and i don't want any extra downward load on the bottom chord of the roof trusses.

I am just wondering how much deflection/bending will occur in the steel without these vertical pieces connected to the ceiling. The steel is 2"x1" and it will be on its edge if that makes sense (orientated so the 2" side is against the walls). I am likely to pile a lot of hand tools etc into this area so allowing for about 100-200kg maybe)

I have attached a picture (top down view), the black sections are the garage walls (all brick/block), the red is the steel framework and the small red lines depict rawlbolts which will be drilled and inserted through the steel into the brickwork/blockwork.

Any suggestions/ideas will be greatly appreciated.

Shady

 

[normspanners]

Just an idea but if the run that is across the garage 2700mm is done in smallish section 'rsj' or 'universal beam' t6hat would create better strength, and it rested it on the walls, or if there isnt the space you could weld 300mm long 12mm flat plate on the top section overhanging the ends, then the flat plate, could sit on the wall, rather than bolting it to the wall , put the shorter 1800 mm beams from 'rsj' to the wall over the door, you could rest the beams on the inside of the bottom lip of the 'rsj' so that you dont limit the headroom by having to put them ontop, the whole structure would then be sitting 'on' something rather than bolted and the beams would only need tacking just to hold them in place

 

[Premiershipman]

I have been mulling over it all day - i was considering changing the layout and having the lengths run across the garage rather than in from the garage door which would mean having 4 x 2700 lengths running side to side across the garage, and the 2 x 1800mm lengths along the side walls anchored to the brick/blockwork.

I don't really plan on buying anymore steel as i already have about 13m of 2"x1" box sections steel already but the rsj is an interesting idea.

The headroom will end up being about 400mm after steel and plywood, the idea of putting the steel 'on edge'was that the deflection would be less than if it was laid flat.

I also think there may be a concrete lintel above the garage door so drilling above the door opening may not be an option.

 

[normspanners]

My opinion is, you would be better having one strong piece across the long span and the weaker lenghts on the short runs if you are like me, it's, 'I will only put light stuff up there' then, Oh yeah I will just put this and that and the other up there. Just like my loft, after I boarded it out Looked up from my bed one morning and thought s**t there a 'bit' of a bow there, i thought they are only bin bags with a few bits in HUM!! I ended up having to put stud iron down from the perlins to brackets screwed to the joists to jack the cealing back up !! it had to come up about 3"!!
Can you not put bearing plates on the top of the walls n lintels and let them just sit there ? its allways better for weight to sit 'on' than be bolted 'to' when it comes to walls, thats why the rsj section is good because you can use the bottom 'foot' but it is still just as strong along its lenght , is there a used steel supplier close to you, as used should not be too expensive.
Once its bent its bent !

 

[normspanners]

ps you could you use channel rather than than rsj it would be cheaper

 

[Premiershipman]

Its an awkward one really, i have 2x2 and 2x1 box section to spare and dont really want to go to the expense of and rsj !

I considered welding some plate around the ends of the 2x2 creating a flange and using that as the 2700mm piece across the garage that way it would be bolted via the flange at the end giving greater strength.

I do have the option of embedding one side into the block work of the inner wall but the other side is only single skin brick.

Maybe I could embed one side in the wall and flange the other side ?!?

 

[normspanners]

How about using masonary drill, drill holes side by side through the mortar bed and take out a piece of the brick on the single side will only take 5 mins and pass the 2x2 through the wall and then embeding the other side,slice the piece of brick down and stick it back with a little mortar and you would hardly see the join. Then if the 2x2 does tend to bow it is not going to pull on the mounts then weld 2x1 under leaving a 1" lip to sit your 1800 'joists' on then just tack them on.
I did that with 2 off 6x6 x 20ft uni beam through my 5" wall to get it in the loft I had thought of all ways of getting it in and mounting it, then I just drilled out the bricks slid in the beam into sockets cut in the far wall only took about 1hr.