Re: would like to make outdoor sitting arrangements
Welcome to the Bunnings Workshop community @poonam. It's amazing that you've joined us, and many thanks for your question.
Have you had a look at @Adam_W's guide on How to build a low-level deck? I trust you'll find plenty of helpful information in there to get you started. Our members will be keen to assist once you have provided some details on your project. Perhaps you might like to start by sketching out your ideas to show us? I'm sure you'll find our Top 10 most popular deck projects of great inspiration during this process.
Once you have read through the guide above, please feel free to let us know if you have any specific questions on building a deck and sitting area.