Fixing stringers to walls

[stuartturbo]

For loft i have a winder stair to construct, having all the details the stringers are 275x38 in an enclose stairwell 740mm wide.
To fix the stringers would anyone have any recommendations other than "big screws into the walls"

 

[ladylola]

Joist hangers and brackets or notching over a trimmer?

 

[tony1851]

if you had a drawing or photo it would help.

 

[stuartturbo]

Hopefully this give an idea
Playing to get the winder correct.
I will probably use heavy use screw and loads to spread the laods

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• stuartturbo
• 6 Mar 2012
• 2

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[tony1851]

The straight flight is usually fixed by screws direct into the walls. 4" screws will do (to go through the string, plaster and into the wall).
The tricky bit is fixing the winders. Assuming you have had the stairs made up, the winders should be separate from the straight flight. To accommodate the extra depth, the string is usually deepened at the winders and you can still screw through this into the wall. The sketch taken from BS 585 (Wood Stairs) shows winders supported off blocks screwed to the wall. Hope this helps.

Untitled

• tony1851
• 6 Mar 2012
• 1

 

[big-all]

make sure you pack out any areas not touching the wall to stop the string being pulled off line

 

[stuartturbo]

All to be constructed by myself.
the winder I am making a frame work for each step.

 

[catlad]

I would use rapiers instead of screws.

 

[tony1851]

What's a rapier?

 

[catlad]

Its a relatively new fixing 6mm dia with its own cutting thread, you can basically drill straight through your wood into the masonry then straight in with the rapier no rawl plug. Faster, stronger.

 

[tony1851]

Thankyou.