Refer to attached picture for intention.
Require drafter to create professional 3D drawing of the room for the next step to get contractors to fabricate it.
To use 25mm width x 3mm thickness metal plate for the rooms' dome skeletal beam structure.
The rectangular room structure to use 50mm x 50mm square metal pole.
Hi. I am a professional Civil Engineer expert in 3D modelling. I’ll make your dome within hours in your specified budget. Just text me up to discuss it in detail. Thanks.