I'm designing a pipe grid layout for a basement space below an existing theatre. The coffered concrete ceiling is between 7'-6" to 9'-0" clear to the floor. The grid will be installed professionally by a theatrical rigging company.
There's no question that I am asking for a 1.5" ID Schedule 40 grid, and the presumption is that all lighting fixtures will yoke up or overhang as much as they can. There will be vertical space between the ceiling coffers to allow this in most areas (the grid will be just below the coffered beams). I will probably ask for installation using speedrail (or its equivalent) so the entire grid can be at one consistent elevation (instead of the US-DS pipes sitting above or below above the SL-SR pipes).
My inclination is to specify a standard 4'-0" x 4'-0" grid module, but I am entertaining possibly tighter pipe centers, say 3'-0", which might (or might not) make things more flexible and I wonder what people think about that. I'm also curious if readers have anecdotal comments about whether there should be a pipe on the space's centerline, or if the grid should split center so a yoked fixture can actually have its lens on center.
Finally I have an idea about stopping the grid short of the walls of the space to allow overhung fixtures at the end of the grid to light a backdrop (for example) mounted to a wall. I wonder if people have opinions about doing so.
Many thanks for the ideas....
There's no question that I am asking for a 1.5" ID Schedule 40 grid, and the presumption is that all lighting fixtures will yoke up or overhang as much as they can. There will be vertical space between the ceiling coffers to allow this in most areas (the grid will be just below the coffered beams). I will probably ask for installation using speedrail (or its equivalent) so the entire grid can be at one consistent elevation (instead of the US-DS pipes sitting above or below above the SL-SR pipes).
My inclination is to specify a standard 4'-0" x 4'-0" grid module, but I am entertaining possibly tighter pipe centers, say 3'-0", which might (or might not) make things more flexible and I wonder what people think about that. I'm also curious if readers have anecdotal comments about whether there should be a pipe on the space's centerline, or if the grid should split center so a yoked fixture can actually have its lens on center.
Finally I have an idea about stopping the grid short of the walls of the space to allow overhung fixtures at the end of the grid to light a backdrop (for example) mounted to a wall. I wonder if people have opinions about doing so.
Many thanks for the ideas....