About 8 years ago, I replaced and wood deck and expanded it using Timbertech. I designed and printed the material list from the Timbertech site.
The site below is where I got most of my materials. Including some longer treated wood since they had free delivery. They used to have the ordering online. I put in my order and they called to confirmed the actual count of pieces. The only thing I did not order from them were the copper cap and hidden fastener. I was told that the Timbertech fastener were just a re-brand so I got the hidden fastener from 84 lumber for much cheaper. If you are doing composite railing, don't underestimate the cost of that. It gets real expensive fast. If I remember correctly, my deck was somewhere between 550-600sf and it cost me about $13K in materials only. The deck board actually worked out to be one of the cheapest thing. 4x4 sleeves, 12" and 6" facia board to give it a wrapped look added a lot of the cost. Those hidden fasteners and deck screws were probably close to $1000
Nice thing about the online deck software is you will get a material list. You will need that if your designed is not square and require different length.
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