Hi Does any one know a good source for pull fireplace screen ?

I have a customer who needs a fairly large one 4x4 ft 

Any ideas >thanks 

What do you mean by pull?  The flexible stuff that slides to the side like a curtain?  Or regular mesh attached to a mobile screen?

I use a pair of large bolt type tongs. the working ends are 2 pieces of 1/4" x1"x1" held on with a countersunk rivit. these swivel. I start from a corner and bolt the screen in place. I use the tongs as a lever and pull the screen tight. I work equally in both directions from the corner. when done, replace bolts with rivits, if that's your form of joinery.

I hope this is what you were asking about.