I inherited a garden room when we moved. We're just in the process now of converting it into a home office/low impact gym and I always thought the floor was too bouncy. Turns out that there are not any noggins in between the joists and not enough joist and they had just rested the 9mm(!) boards on top. That's a job and cost for another day soon!
That sucks! 9mm is too thin for flooring boards, especially if their purpose is to take weight. I wouldn't use anything smaller than 18mm OSB and as you can see in Part 7 of this series, have at least a noggin between each joist so that the edge of each board has something to rest on. Otherwise it will sag and be bouncy like you say. If there's one thing I'd do different, it would possibly be to use tongue and groove on the floors and roof, however my budget didn't allow for that. Thanks for the view 🙂
@@irvine40 you're 100% right. My original plan was to have pads running along the centre. I will take your advice and figure out another way to support them underneath. Next video should be putting insulation, so you'll see what I come up with then. Thank you 👍
So I took your advice with regards to the joists that were effectively spanning 3.5m without support in the middle. I was too far in to rip up the fabric and dig more holes for the concrete pads so I ended up using some 5x2 cut offs as stilts, resting on the fabric and screwed into the joists. If you're eagle eyed you'll see what I mean in the next video, although I don't really focus on them. thanks.
I inherited a garden room when we moved. We're just in the process now of converting it into a home office/low impact gym and I always thought the floor was too bouncy. Turns out that there are not any noggins in between the joists and not enough joist and they had just rested the 9mm(!) boards on top. That's a job and cost for another day soon!
That sucks! 9mm is too thin for flooring boards, especially if their purpose is to take weight. I wouldn't use anything smaller than 18mm OSB and as you can see in Part 7 of this series, have at least a noggin between each joist so that the edge of each board has something to rest on. Otherwise it will sag and be bouncy like you say.
If there's one thing I'd do different, it would possibly be to use tongue and groove on the floors and roof, however my budget didn't allow for that. Thanks for the view 🙂
Good job! Looking forward to the progress. I am planning on something similar for my garden.
Thank you. Good luck with your build
If possible I would add more pads for the joists to sit on as the floor could be springy in the centre
@@irvine40 you're 100% right. My original plan was to have pads running along the centre.
I will take your advice and figure out another way to support them underneath.
Next video should be putting insulation, so you'll see what I come up with then.
Thank you 👍
So I took your advice with regards to the joists that were effectively spanning 3.5m without support in the middle. I was too far in to rip up the fabric and dig more holes for the concrete pads so I ended up using some 5x2 cut offs as stilts, resting on the fabric and screwed into the joists. If you're eagle eyed you'll see what I mean in the next video, although I don't really focus on them. thanks.
@@grim-upnorththat’s great you were able to add extra support at this stage. I am sure it will turn out fantastic when finished