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The posts need to go down 400 and set in at least 200 of concrete (not quickset) but that is provided the area of roof supported is no more than 10 square metres

Decking would be built around the...

Not that anyone pays any attention but a dynabolt only 45mm from the edge a concrete slab is not sufficient. It needs to be a chemical anchor to avoid shear cone failure. But everyone uses dynabolts...

It means as triple laminated studs. That is joined to make a solid cross section of timber that would be 90mm x 135mm. They would only need to be nail laminated and have a noggin at half height on a...

Get a certifier, not just an engineer. Councils do not always accept a Structural Engineers inspection unless they are also a registered building certifier. It is better to engage the Engineer to...

Then just notch the HySpan.

If your bearers are not short spans with intense loads on them then shear will not be a problem. But in saying that, because you are using I joists it will become a problem if you notch because of...

You will find that a lot of Structural Engineers have a deep mistrust of timber and will also not want to mix timber and steel. There is not an issue with mixing them and if you use RHS sections like...

Studs will depend on wall heights. They can be 450cts instead of 600cts.

Prefab is the way to go. Just make sure you are accurate and there will be little issue.

I got quotes for my reno and the cheapest carpenter was $3600, whereas the frames delivered was $1100.

I would ask about tie down.

You are too helpful Ausdesign. Keep answering the questions before I can. What he said.

A few things to make sure of:

The stud wall has adequate studs under the beam location.
The steel beam is tied down to the wall frame.

It does look messy but as long as there are no lateral...

What Ausdesign said. Bounce is dependant on the stiffness of the joists and bearers. The stiffer (deeper or higher grade) they are the less bounce. The flooring can obviously play a role but 19mm at...

You want it to bear on the load bearing wall.

I would use mortar pads top and bottom.

There is evidence that in some situations timbers squeeze out nails over time (especially nailplates) but no one quite knows why and hence exactly what conditions will cause it. The most likely...

They do look quite strong.

If you need any assistance with it just ask. What is your need? See if it comes with the design table CD. I have never bought one and have online access so I don't know if the tables come with it but...

Definitely go with one of those Architect style programs. To set up and get a good result with AutoCAD would take a newbie too long.

Doesn't he also have an area that isn't pavers? I would be worried that this area woul sink or atleast settle more than the pavers part and so would be a problem. If he wants a good deck he needs...

First work out whether the concrete stumps will continue to sink.

I would use something that doesn't compress that much like steel plate or even very dense hardwood.

AS1684.2-2006 is the latest for non cyclonic.

They go like this:

.1 Design (gives the design procedures and design limits for all timber elements)
.2 Non Cyclonic (has design tables and all...

Cypress is like any pine. You must provide protection against termites. So make sure the builder has a plan on how to protect it.

Why doesn't the builder just measure up and order from a frame &...

Please use the term hanging beam. A joist hanger is a propriety metal bracket that connects joists to beams/bearers.

A 75PFC will work but the deflection is right on the limit. I would consider...

You may be best off pouring a concrete slab and gluing the decking to the top. No termite issues.

What Joe said. Structural Engineers are the way to go. You could contact frame and truss companies or even one of the three nailplate suppliers and ask for their engineers.

Another solution that...

I can't see the balcony being designed to carry 50mm thick concrete slab. That is 120kg/m2. That is over 2 layers roof tiles in terms of weight. If your calculation of 1/3 is correct it is just under...

Unless it is floating in the air there needs to be either a termite barrier, treated timber or hardwood with less than 20% sapwood.

Maybe if you talk to a council inspector (with no names or addresses) they could give you another solution, or at least what they would be prepared to accept and certify.

It says you must have a mimimum of 2 risers.

If you want to be inside the BCA requirements there is no easy way.

I wouldn't advise cantilevers on decks unless necessary. The span tables are set up with load widths assuming that the other side of the member is supported. In terms of the member loaded the load...

You need 400mm for inspection or 150mm for ventilation. If you provide termite protection to the deck and not allow a path into any other structures then 150mm is OK. Check with your council as to...

It depends on the match you need and what you have. I had brick that were from a company that doesn't exist anymore and the bricks had yellows, reds, dark blues and browns running through. I didn't...

You may look into a truss boot due to the 90mm.

Matching bricks is not easy. Best bet is to go and see brick suppliers like Boral/Austral etc and see it they have anything close. But remember that every batch will be different.

You should run an extra member to stiffen the ceiling joists that connect to the trimmer.

It could work, without the details I don't want to comment but the trimmer is a simpler way to do it.

But from your posts it seems like the stairs go up and turn left thus eliminating the trimmer...

That method will work as long as the deck is close to the ground and there is little uplift force.

Fair enough. Depends on the set up but when I installed flooring at home, cutting the flooring was hard. Obviously not the case for everyone.

I have never come across a building designer before. So the plans are architectural or structural or both? Because there are some major differences in the drawing types. Are they more of an...

Either way I would have run it long ways and just cut in some trimming members to support the sheet. Why make 8 unnecessary cuts? You could just fill the gap of 100mm with a strip of flooring if you...

What are the qualifications of a building designer?

No doubt it will need a beam to support loads but the issue is the bracing. Judging by the tone of the authors post, I would recommend a professional to size the beam and investigate the bracing...

You will need engineering advice. My thoughts are that adding a second rafter nailed to the original would be adequate.

If they are not on the plans you may need to assume that there is bracing in the walls and come up with a solution then when you get to the job, if it is there you implement the solution otherwise...

It is essential to know if the wall is a bracing wall but being external I would assume it is. That is not the end of the story. There is a way to remove the parts of the wall even if they are...

I would direct this enquiry to the engineers at Pryda as to the suitable use of their stirrups. One would think that the raised stirrup is for ease of installation and possible termite protection but...

Please do not assume that beam stiffness will always govern design.

That is all well and good but the first line in your post is incorrect. Beam Stiffness is what you are referring to and it is a function of the I and the E (youngs modulus) which is a measure of the...