Quote Originally Posted by spluppit View Post
I have not seen other threads on this but what is the overall size and the size of the box? Is there any reason you have made this frame in a format which is basically 2 squares/rectangles joined in the middle?

In this one i produced some years ago you will see the box runs full length then all cross members and infills added after. This is the standard format used in industry and how designers would produce a frame. I have made many like this the years on a slab (large surface plate, not a welding table) This ensures the best flatness possible within the constraints of the material.

Attachment 23320

If your frame is as big as it looks and they have a slab that big, then its a fair price in my view if those boxes are as big as they look. Also the way you have designed it as mentioned as 2 squares joined has not helped the costs, it makes it harder to keep it as flat as possible as apposed to having the box run full length,
No reason other then recommendations which proves to be very strong and sturdy, but for those who can weld its not so much of a trouble with mild steel being very cheap but for me having to find someone to weld it for me then all those pieces to weld is costing a fortune.