Mustang Seat Frames

The plan is to take the frames to an upolsterer and tell him to make some seat cushions that fit. The cusions I have seen have plywood or some other material (some kind of synthetic) backing sewed into them. With female threaded inserts in the wood so I can bolt through the frames to hold the cusions on. I am not an upolsterer though so I think I will just leave that part to them - we'll see.

64 Skier, my thinking is that with some material in the cusion (plywood or synthetic) of about 1/2" thick, when the cusions are bolted to the frame there will be enough rigidity. Again, we'll see.

Also, the 1/4" risers on the back are doubled when welded, to 1/2" and again the back cusion will have a 1/2" backing plate inside it also. The 1/4" flat bar riser above the welded risers is only the top 8" of the riser. Plus there are two 1/4" thick cross braces welded across the back for a total of 1/2" of thickness leaving only 4" of 1/4" aluminum on the back cusion risers. From a practical point of view, the aluminum back cusion riser part of the frame is 1/2" thick not including the 1/2" of rigid material in the cusion.

If I get too much flex I can always weld on stiffners but I don't think I will need them. Again, we'll see.

Here is a pic I found somewhere. I am using the pic as a model. Thanks to who ever owns this boat and posted the pic.

Looks good . So then what are you going to do ? Make ply wood frames for cushions and the screw them to the aluminum?

Pat