thanks for offer sonny but I'm way up north -- anyway, just want to replace the sliding windows, not the sills and "one bys" etc that are attached to my brick house.

i thought there might be a premade frame i could cut to size then simply insert glass to make a fixed (non opening) unit.

perhaps not.

i want to do something custom for a precise fit.

just the top, bottom, sides and i suppose a middle piece.