My builder uses Houzz Pro to plan the timeline and give detailed estimates and daily updates with photos of progress, and provide invoices at pre-agreed key points in the build. This made the whole experience much more efficient and stress-free.
Thanks for your question. The cushions are from Target, and are not fastened to the banquette in any way, but a no-slip underlayment (such as one intended for rugs), or velcro could be used if needed.
Etelamaki Architecture