Had to lay out balcony decking for the shop and installer

I had to work out how the deck boards go on my balcony. Just one, simple drawing for the decking shop (lengths, counts) and for the installer (gaps, joists, threshold at the door).

My is problem I don't have a CAD license.

I'm a structural engineer but I work in software now. I put together a small browser tool to sketch this kind of thing quickly with mm dimensions and notes.

Here's what I sent them:

https://preview.redd.it/ga8e1naregch1.png?width=2492&format=png&auto=webp&s=d911a564066d142122a968071150881c3ed85c90

What do you think? Is it good enough?

If you're curious, the editor is here: https://engsketch.com/app