@Dahatre..i saw some jua kali imitation type of such doors along Ngong road opposite Racecourse where there are alot of furniture and steel gate fabricators. Take a look there and compare.

@Dahatre, if thieves really really wanted to get into your house, even with those doors for 500k they will still get in.

But those are the doors you want so...

Check out these guys: http://www.steelstructureskenya.com/

the 8,12 16,20 refer to the diameter. If you have a measuring instrument such as a veneer caliper etc, you can just measure.
As to the quality of the steel eg maleability etc, last time i checked at Devki, they did not chemically analyse since they used scrap metal. Associated Steel are more detailed . They should be in a capacity to offer detailed chemical analysis of their steel eg carbon content, iron content etc.

With the numerous building collapse, i am hoping that Kenya bureau of standards will move a step further and enfroce steel standards not just in terms of diameter, but to include chemical analysis content eg % of carbon, iron ,manganese , how malleable the steel is etc. KBS should set the standards in conjunction with Engineers association of Kenya.

@A4Architect,

Many thanks for your valued advice on this forum.

How would you rate these locally produced Tactile stone coated roofing tiles? Do they fade? How would they compare with Decra - costwise, aesthectics, etc?

http://tactileroofing.co.ke/company/

Not sure if you read the link in my previous post or maybe am missing something. Apparently these tactile stone coated sheets are being manufactured locally – by tile and carpet, and are about 25% cheaper than the Decra tiles. Now, Tile and carpet is a respected company and just wanted to know if anyone can recommend their stone coated tiles. I would consider them if the product is good rather than importing from China and end up creating jobs in china. ANYONE?