Hello,
I'm planning to build an uninsulated storage shed against an outbuilding. I'm wondering if you think the attachment of the rear posts will hold? The roof and the deck will be approximately 5.4 x 4 m in snow zone 2.
All beams in the picture are 45x220 c24 and the post consists of 2 pieces 45x90 c24.
I'm planning to build an uninsulated storage shed against an outbuilding. I'm wondering if you think the attachment of the rear posts will hold? The roof and the deck will be approximately 5.4 x 4 m in snow zone 2.
All beams in the picture are 45x220 c24 and the post consists of 2 pieces 45x90 c24.
The alternative to a 6x120 screw might be a French screw, but it feels a bit weak to use a French screw on the short side of a 45-rule.
I'm not entirely sure what you're worried about here. Is there something up in the air? If it's just about securing the post in the deck, your 6x120 will do just fine as long as the post is on a slab/pillar or similar. French screws work well too if you have those on hand.
The post is not on a slab/block. It is only screwed into a floor joist.
Then you need something thicker than a 6x120 screw as these easily pop off over time if they are subjected to torsion and loads. Go for a 10mm screw and, if possible, add a brace so the post rests/hangs on the joist. Alternatively, notch the post into the load-bearing joist a bit so that it stands on something and is not just hanging by the screw.D Derbyboy said:
can you describe what a knap is?
A knap means that you screw/nail a block, usually under something bearing, as extra support.D Derbyboy said:
If we start with your picture, you can imagine that your post continues two-three meters down below the framework. Then it suddenly becomes a balcony because the beams are now suspended in the air, and all the weight is on your 6x120 screws that sit in the post. To relieve the screw, you can then screw/nail a block on the post that lies tightly up against the underside of the bearing beam. In this way, you get more screws that everything rests on, and you can afford some of them breaking over time.
However, in your case, I would notch out 22-45mm in depth and 220mm in height in the post so you can slide it into the beam. In this way, the post stands on the framework, and the screw you fasten with is not subjected to the same force. Then you can use 6mm screws as these are mainly just to keep the post in place sideways.
Thank you very much.
You are good at explaining things.
You are good at explaining things.