I’m at the end of a full landscape job although still trying to squeeze in 2 built in hebel or hebel and blueboard seats.
hebel I can use a texture paint or paint directly. If using blueboard the render expense is quite large. If anyone has done a similar construction that was cost effective and worked well please let me know! Thank you!
I don't believe members have shared anything similar on Bunnings Workshop in the past, although @debby1was asking recently. If you search for outdoor bench on the site you'll find plenty of projects, however most are timber.
Please let us know if you could share even a basic sketch of what you'd like to achieve, complete with dimensions, and members like @MitchellMc will be more than happy to assist.