Attic staircase - gap between frame and collar beam

[Soy]

Hello!

I am planning to install an attic ladder. I have 54 cm between the joists and found a ladder, Dolle Clickfix, that has an outer frame dimension of 54 cm wide. It states that the hole should be 55 cm. My question is, do I have to/should I have 5 mm on each side for some reason, or can I install the ladder directly against the joists?

https://www.dolle.se/shop/vindstrappa-clickfix-56s

https://img.bygghemma.se/pfiles/Mon... 56__e3c372b8-b60f-40db-a5c9-b76dd3f78dcb.pdf


/S

 

[nimhed]

You usually want a few mm to be able to insert some insulation. Otherwise, there is no point in the gap.

 

[Soy]

Thank you for that!

 

[Tubie]

Hello!

I'm planning to install an attic ladder. I have 54 cm between the ceiling joists and have found a ladder, Dolle Clickfix, which has an outer frame dimension of 54 cm wide. It states that the hole should be 55 cm. My question is, do I need/should I have 5 mm on each side for some reason or can I install the ladder flush against the ceiling joists?

[link]

[link] ClickFix 56__e3c372b8-b60f-40db-a5c9-b76dd3f78dcb.pdf


/S

Hello! How did you solve it? I'm about to install the larger Clickfix 76 with hole dimensions 115x70 where the frame is 113x68 but realize that the spacers that are supposed to be between the frame and ceiling joist are not included. Where the heck can one find wooden spacers that are 10 mm? Thanks for the response!

 

[Workingclasshero]

Hi! How did you solve it? I'm about to install the larger Clickfix 76 with opening dimensions of 115x70 where the frame is 113x68, but I realize that the spacers that should be between the frame and the rafter are not included. Where on earth can you find 10 mm wooden spacers? Thanks for the answer!

Fit plywood or similar on the sides so it becomes stable. There's no point in using flimsy small spacers when you can make it really stable. Nice that you chose a wider staircase than the 55 cm I chose, but that's what was available 30 years ago... before the internet... I regret it every time I walk there, cramped...

Good luck with the installation

/W

 

[Tubie]

Sheath with plywood or similar on the sides to make it stable. There's no point in using flimsy little spacers when you can make it really stable. Nice that you chose a wider staircase than the 55 cm I chose, but that's what was available 30 years ago.....before the internet....... I regret it every time I go there, it's cramped....

Good luck with the installation

/W

Thanks for the tip! I guess I have to buy an entire plywood sheet then. I thought planed 8 mm might work but solid pieces of plywood might be better.

https://www.k-rauta.se/produkt/planhyvlad-moelven-8x43mm-obehandlad-furu-33m/7040431895625

Yes, 70 cm seems good. Hopefully, I can lift a moving box without twisting it past the hole.

 

[Workingclasshero]

Thanks for the tips! I guess I'll have to buy a whole plywood board then. I thought planed 8 mm would work, but substantial pieces of plywood might be better.

[link]

Yes, 70 cm seems good. Hopefully, I can lift up a moving box without twisting it past the hole.

It works fine with planed, it's just a spacer, not load-bearing. A few extra screws, you know, you'll be standing on it, well, when you're on the ladder, that is