I've had an all wool runner on my stairs for 12 years and absolutely love it. We have a large dog and two kids have grown up with this stair with no slipping issues. Wool is great for other reasons from an environmental aspect. There are several online sources that can educate you about wool carpets and it's appropriate applications.

I used to be a 100% wool girl but I've switched to Godfrey Hirst's Eco+ range for several reasons. It's made from a corn polymer so there are no concerns with allergies. It's divinely soft underfoot, is available across a wide range of pricepoints, all with a 25 year warranty and in a broad range of classic and contemporary colours, including a charcoal grey. It is not a sisal look but in a bedroom it's lovely to have something a bit more luxurious looking and feeling. I am not affiliated with Godfrey Hirst at all but my clients and I all love this product! If you decide to check it out would love to hear your thoughts. Here's the link to the brochure but you really need to go to a carpet showroom and stand on it :) http://www.godfreyhirst.com/au/ecoplus/inspiration/brochure-eco

Sounds like the right way to go, they look great and the carpet place should also be to do the over locking for you,ours did, don't forget the non slip under coat

Hi Kezzle This is a bit intricate but it should make sense... The flooring industry has tried to move across from lineal metres (lm) to square metres. Normally carpet is 3.66m wide (12ft). It sounds horrendous to buy a 4m wide (15ft) carpet at $390 lm, but if you express it as $97 sqm it's not so bad. Nevertheless, the flooring industry buys it from the suppliers in lineal metres and calculates the quantities in lm also. The trick is to balance the number of joins vs the wastage when deciding the layout. There is also a little trick in the trade where they crimp the quantity but that is for another day... There are two ways of laying the carpet upstairs. The first way is front to back of the house ie 'down' the room in eg bed 1 as shown below. This way will mean you will have a join in bedroom 3 and two in the passage, 1 being in the line of the wir doorway and the other in the line of the bed 3 cupboard. Here is a rough mud map... I can't quite make out the measurements very well, so I have written down the assumed numbers in lineal (length) metres. You can change these if incorrect. In the games room, you will have 1 join which you can't avoid due to the size of the room. This will require around 22.9 lineal metres of carpet.... and at $97.5sqm it should be costing you about $8930. Alternatively if you were paying $9,600 then the real cost of the carpet is $105 sqm.... just like Dr Retro (and there is the trick) If you turn it around the other way, you will have more joins and could do it for around 21.5-22.5lm depending on how many pieces are used in joins... I would go into the shop and ask them to show you how they are installing it.... then crunch the numbers yourself... There are about 3 or 4 ways this can be done so the above is just one... Cheers