Usually, when possible, the entire staircase is assembled on the floor, so to speak. Then it's lifted into place. This is the best way! Unfortunately, this is not always possible, so I usually assemble the second flight first and put it in place before assembling the first flight and setting it in its place.
 
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Mikael_L
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Mikael_L
Thank you so much. d^_^b
I don't have any more questions now, but surely some will come up when I get started (tomorrow or whenever it happens!)

I promise to post some text and pictures about how I did it in the thread later.
 
We look forward to it! :)
 
Mikael_L
Yes, I promised pictures!!! :x
Would you like a lot of pictures and the detailed version?

I started framing the wall with cc30, but since I needed some 45x70 for another place, I ended up as the picture shows, cc30 at the beginning and end of the stairs. ;)
Then I hung up the long stringer provisionally and measured and pondered and pondered and measured.
I calculated the existing step heights and checked that the steps were level as the stringer was hung, etc., etc.
It's a used staircase, not custom-made, so I wanted to determine the length of the stair opening and whether I needed to trim a few mm somewhere due to the height, etc.
But the stated length of 3000mm and width of 900mm seemed to fit well.
And as far as I could assess, the height would be just perfect. d^_^b
 
  • Wooden framework of a staircase under construction inside a house, with temporary supports and visible tools.
Mikael_L
Then I cut the beam between the rafters to the correct length. That is 3000mm + 45mm + 20mm from the opposite wall. 3000mm = staircase, 45mm = support rule, 20mm = adjustment allowance. Adjustment allowance considering that it is much easier to fill a 20mm unwanted hole than to cut away 5mm from the side of the support rule if things don’t align in the end. :cool:

Support installed with angle brackets.

Then I covered the wall with sheet material. I glued and screwed the OSB to the studs. The white glue adhered somewhat poorly to the smooth OSB surface (I tested gluing a piece), so I made a quick pass with the sander to get a better surface. The gluing is probably total overkill, but I'd rather spend this half an hour now than stand there afterward wondering if any squeak is due to skipping the gluing. After OSB, it was gypsum.
 
  • Building site with wooden beams, a saw, and tools scattered on the floor. Construction materials like OSB and gypsum boards are visible.
  • Wooden beam structure with angle brackets mounted, OSB boards attached, insulation material visible underneath, and construction tools in the background.
  • OSB sheets installed on a floor, with construction adhesive visible and a framed wood structure in the background, part of a renovation project.
Now I'm hijacking the thread and informing you that I have a better second-hand staircase similar to Mikael's for sale at a cheap price. :)

Edit: By popular demand, I should add that the staircase is approximately 303 cm from floor to floor and has 16 steps. Roughly. :)
 
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S
never surface floor under stairs or other "fixed" installations. it becomes so troublesome if you change flooring and you need to ensure the same thickness under the stairs.
especially important if you have click flooring as they move more at the joint than glued joints
 
Mikael_L
Should I continue ... ;) :P
 
...but then you have to hurry up. :@
Some people have other things to do. :cool:
It is Friday after all. :rolleyes: :wow:
 
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Mikael_L
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Mikael_L
Then when I was going to attach the staircase according to option 1 (in posts #28 & #29), I couldn't figure out any reasonable way to attach the staircase that way. And there were no holes whatsoever that revealed how it was attached in the previous house. Maybe it only lay down against some beam that they attached under the end of the inner stringer?

Anyway, I decided to attach it according to option 2 instead. The stairwell wouldn't be wider than the staircase anyway.

1. So first I measured 916mm from the surface of the gypsum. The idea was 16mm extra clearance so I would wedge in a piece of 16mm MDF between (and glue it).

2. Mark where the beam should be. (My Hultafors angle is exactly 45mm wide across the blade, place it and draw a line on each side ;). How smart they are at Hultafors.)

3,4. A joist hanger.

5. A piece of sparse panel as temporary support for the other side of the beam. :)

6. I also drove in two 6x100mm screws into the end grain, nothing should wobble here. :)

7. A glued and screwed block holding the other side works well. Additionally, there is a strong beam as part of a deflection-stabilizing structure prescribed by the truss supplier. So I could also attach this to the sturdy beam using an angle iron.

Now there are many pictures, i.e., the looong version. :D
The last part will probably be on Sunday... Remind me if I forget. ;)
 
  • Wooden beam fixed to a wall with visible screws and metal plate, part of a staircase installation project; drywall and insulation visible underneath.
  • Wooden beam marked for cutting with pencil lines, possibly part of a staircase installation, showing grain patterns and knots in a workshop setting.
  • Galvanized metal joist hanger attached to a wooden beam, used for securing structural elements in building and renovation projects.
  • A metal bracket securing a wooden beam in a construction project.
  • Wooden beams and construction materials in a partially built staircase, showing the process of attaching the staircase to a supporting structure.
  • Wooden beam with metal brackets securing it to a wall; part of a staircase construction, showing attachment details discussed in a renovation forum post.
  • Wooden staircase installation showing supporting beams and an MDF piece for adjustments close to a staircase opening, with tools and materials nearby.
Ola78
Mikael_L said:
When I was trying to fix the staircase according to option 1 (in posts #28 & #29), I couldn't find any sensible way to attach the staircase in that manner. And there were no holes at all to indicate how it was attached in the previous house. Maybe it was just placed down against some beam they attached under the inner side of the staircase?

Anyway, I decided to go with the attachment according to option 2 instead. The stair opening wouldn't be wider than the staircase anyway.

1. So first I measured 916mm from the surface of the gypsum. 16mm extra margin was the idea, so I would wedge in a piece of 16mm MDF between (and glue this).

2. Mark where the beam should be. (My Hultafors angle is exactly 45mm wide across the blade, place it and draw a line on each side ;). How clever they are at Hultafors.)

3,4. A joist hanger.

5. A piece of sparse panel as temporary support for the other side of the beam. :)

6. I also drove in two 6x100mm screws into the end grain, nothing should be loose here. :)

7. A screwed and glued piece of short timber holding the other side works fine.
In addition, there is a strong beam as part of a deflection-stabilizing framework that the truss supplier has recommended. So I could also attach to this solid beam with the help of an angle iron.

Now there are many pictures, i.e., the loooong version. :D
The last bit will probably be on Sunday... Remind me if I forget.;)
Now we want to see the last pictures, it is Tuesday after all, or do you have a different calendar than we do?;)
 
Mikael_L
But it's not Sunday yet...
(not the Sunday I was thinking of... I didn't say which one... :P)

OK ok, I'll get to it, any day now. :blushing:
Yesterday I worked on a few more pictures, but tonight I might be away all evening. We'll see...
 
mycke_nu said:
Now I'm hijacking the thread and telling you that I have a better used staircase similar to Mikael's for sale at a cheap price. :)

Edit: By popular demand, I will add that the staircase is about 303 cm from floor to floor and has 16 steps. Approximately. :)

Does it have 16 steps approximately??? :S:rolleyes:;)
 
In my projects, we always place the stairs on concrete/framework, and raise it corresponding to the floor thickness. Then, the floor is laid against the stairs and finished with some type of trim, e.g., quarter round.
 
Mikael_L
Now with the stairwell opening completed, it was time to assemble the staircase. The short piece with three steps was quick and easy to handle. The long part was a bit trickier, but it went really well. I inserted a few steps at the beginning and the end but didn't fully tighten the screws on the short carriage; they were just slightly inserted to hold things together. Then I added all the other steps one by one and finally tightened all the screws while continuously checking that the steps fit into their grooves.

Image #3. Here, I began lifting the large part into place and planned to join it with the short section once I had lifted it sufficiently. I'm not sure if this was the best method. In hindsight, I might have assembled the two parts with the staircase on the floor. Any thoughts on this?

Image #4, here I've joined both sections, but I managed to drop the staircase while it was supported by a ladder, causing the ladder to wedge between two steps and leaving decent marks in the wood. :S After this mishap, I used binding straps, which I attached to the roof trusses, instead. I also couldn't connect the lower stair section to the upper until I removed step #4, which I later had to squeeze back in place.

Image #5 I couldn't then twist the staircase out enough to reach and screw in step #4, as well as the screws that join the short outer carriage with the long outer carriage, and a screw for step #3. So, I used a ratchet with a bit holder. OK, that works well too. :)

If anyone thinks I've placed an outlet oddly, I'd like to point out that it's quite smart instead. :P There's a conduit there up to the device box for the staircase switch. So if I decide to install some lighting effects in the staircase (LEDs to illuminate the steps or something), I'm prepared for it. I've also placed two device boxes at the switch spot, considering using a motion sensor on one. It'll likely detect those heading down the stairs as well as those going up.

Image #6 Now the staircase is finally almost in place. Just a bit of measuring and adjusting to get the exact right position and then screwing it in place.
 
  • Wooden staircase parts lying on the floor, partially assembled, in a room under renovation, with tools and materials visible in the background.
  • Wooden staircase laid sideways for assembly in an unfinished room, showing visible steps and support structures, with construction materials nearby.
  • Wooden staircase assembly in progress, supported by clamps and elevated. Construction tools are visible around the area. Natural light from nearby windows.
  • Wooden staircase under construction, showing several steps in place but not fully secured, with adjacent tools and building materials visible.
  • Wooden stair construction with a ratchet wrench attached to a screw on the underside of a step, in a narrow space. A green wall socket is visible.
  • Wooden staircase under construction with straps for support, partially assembled with visible screws and unfinished elements, surrounded by wooden beams.
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