Fastening of carriage components

[JF.]

Hello!

How is the best way to fasten these chassis pieces? I was thinking of screwing and gluing against the vertical studs, using 6.0x100mm screws. Then attach two blocks on either side of the floor joist. The question is whether it will be stable? Or should I do it differently?

 

[justusandersson]

The best option is probably real vangstycken (note the spelling), i.e., slanted beams with cut-out stair wedges. It is certainly possible to make your solution work, but it is inferior in terms of utilizing the material's strength and not as elegant.

 

[JF.]

The best option is probably real vangstycken (note the spelling), i.e., angled beams with saw-cut step wedges. It's certainly possible to make your solution hold, but it's less effective in utilizing the material's strength and not so elegant.

The problem with pre-manufactured vangstycken is that they don't work with the height difference I have. They're not particularly pretty, but they won't be visible once the decking is in place.

 

[justusandersson]

Prefabricated ones probably won't do. Make them yourself. Start with the stair formula, 2h+d=60-63. Double the riser height plus the tread depth should be 60 to 63 expressed in cm.

 

[JF.]

Prefabricated ones probably won't do. Make them yourself. Start with the stair formula, 2h+d=60-63. Double the step height plus the tread depth should be 60 to 63 expressed in cm.

Is it a 95 rule at the bottom in that case? The height difference is 41cm.

 

[toolman77]

41cm total height with two steps gives 20.5cm per step
2h+d=60 to 63cm
2*20.5+d=60 to 63 cm indicates that the step depth should be 19 to 22cm.

41cm total height with three steps gives ~13.5cm per step
2h+d=60 to 63cm
2*13.5+d=60 to 63 cm indicates that the step depth should be 33 to 36cm.

With only one or two steps, I think you can be a bit more flexible. How wide should the stairs be? I would probably make a "sitting stair" along the entire deck and make it deeper, about 3-5 decking boards deep, and furnish it with some cushions. Stairs are underrated for sitting.

The overhang at the back appears to be a maximum of 20 cm, so all the lumber used to accommodate the height difference will suffice.

 

[JF.]

41cm total height with two steps gives 20.5cm per step 2h+d=60 to 63cm 2*20.5+d=60 to 63cm means the step depth should be 19 to 22cm.

41cm total height with three steps gives ~13.5cm per step 2h+d=60 to 63cm 2*13.5+d=60 to 63cm means the step depth should be 33 to 36cm.

With just one or two steps I think you can take some liberties. How wide should the stairs be? I would probably make a "sit stair" along the entire deck and make it deeper about 3-5 patio boards in depth and furnish with some cushions. Stairs are underrated comfortable to sit in.

The overhang in the back looks to be a maximum of 20cm so all the lumber taking up the height difference will be sufficient

The stairs will be long, 9.6m. As it is made now, there are two steps, 350mm deep with a height of 138mm.

The distance between the beam and the posts is 24cm. How would you do the attachment in the best way?

 

[JF.]

I could do like in the picture. Have the staircase in the middle and then a seating bench on each side of it. The question is, how high should the seating bench be? Like the two steps?

 

[Marcusns]

A step is usually between 15-18cm in height. The seat height can be anything between 40-70cm. Calculate the total height of the stairs and divide by the desired number of steps, then calculate an average for the steps and place the seat height at a suitable spot that aligns with the stairs.

You can do it in many ways, so this is just an example.

 

[JF.]

A step is usually between 15-18cm in height. The seat height can be anything between 40-70cm. Calculate the total height of the staircase and divide by the desired number of steps, then calculate an average for the steps and place the seat height at a suitable spot that aligns with the staircase.

You can do it in many ways, so this is just an example

If it should align with the step, the bench will only be 27.6cm high, which seems quite low?

 

[justusandersson]

An appropriate seat height is around 50 cm. 45x95 for the lower part of the vangstycket might be suitable with the lengths that are relevant.