Veranda build advice

[sulking1]

Hello,

would it be ok to bolt a post to a heavy slab thats cemented down ? is this a good enough support.

let me know.

thanks.

 

[foxhole]

Good enough support for what?

 

[sulking1]

Yeh sorry be good to say what for, its going to be for a veranda a bit of shelter from the rain approx 6ft 7 by 4ft space.

 

[Tigercubrider]

I'd dig a hole and bury it like a post

 

[JohnD]

to avoid rot of your post, you could plant a RC concrete spur in the ground, and bolt a post to it, above ground level.

They are mostly used with fence posts, but you can use them for a low post and rail fence, or to support the legs of decking, sheds or carports. They last much longer than wood, and if the wood rots, you can bolt on a new piece. To make them blend in with the timber, you can paint them with masonry paint. It is easiest to match white or dark brown.

 

[sulking1]

thanks for suggestion but would that not look untidy ? i would prefer to dig a square and cement the slab down out of view and bolt the post to it and then cover it back over with the decorative stones i have.

 

[Tigercubrider]

I built a pergola onto my house 3 years ago.
It's basically a veranda without sheet material as it's a beam on the house wall, with rafters running away from the building.
I then built a goalpost type arrangement for the front, sinking the posts into the ground by 24".
So basically what you're after. The posts are pressure treated 150mm square.

where I used to work, we had covered cloisters that were oak posts sitting on the path, with a roof over the path.
Over time the posts had rotted, and the bases were modified by using concrete cast above ground by about 12".
But it's about 100 years old.

My dad's boss had a "proper" veranda on his thatched house and the posts were brick pillars.

I am no expert but given wind pressure, just bolting to a slab that's effectively just 'glued down' won't do much v. a ground anchor of some sort.

 

[sulking1]

yes thats it, it's only a small area across the wall a beam will go 6ft 7 across and rafters will go out 4ft onto goal post type arrangement.

 

[sulking1]

Will this be ok to use as the rafters as it's not a big area and i've seen similar wood used on another roof i saw ?

https://www.travisperkins.co.uk/Sawn-Timber-Softwood-Carcassing-Treated-25mm-x-38mm-x-3-6m/p/206947

 

[Tigercubrider]

That's pretty thin wood!

I used chunky wood as mine is roughly 3M square and holds grape vines ( which more or less means a roof in summer)

mine is about 100mm x 50 timber. I used a garden fencing company for the timber as it is close and the length meant I collected the timber in stages using my car.

The goal posts are 2 posts, with the crossbar being 2 pieces of timber - one on each side of the vertical posts, coach bolted through.
A similar post is on brackets on the wall of the house, at the same height (ish) - as I don't have to worry about a roof fall.

If you use too small timber is will look flimsy rather than delicate.
Mine is aprox the same size as a lean too conservatory so balances the timber size.
It might look weird if either too chunky or too slim.

 

[sulking1]

ok next question when attaching the wood to the beam that i put on the house how do i cut an angle into the wood so it leans a little to get water off ? or will the weight of the wood do that for me.