BUT the stand surface may be warped, especially around the edges.
It looks to me like one of your horizontal supports is warped.
As it appears your stand platform does not look even.
Looks like the stand is not true.
I took the longest factory cut edge I could find (the edge guard for the tank itself) and the stand itself appeared to be straight, with the exception of the front shelf (shelf to put misc. junk on). It is difficult to tell by just a photo (especially taken at an angle). The tank itself appeared to have one minor low spot in the middle but not enough to cause that much of a difference at the end.
...draw a straight line on the 2x6 horizontal beams and cut it with a circular saw.
If I was to attempt something like this I would use an electric planer as a circular saw would be much more difficult to make the precision trimming needed (in my opinion).
It looks like your tank stand top surface is warped in the centre,
The center appears to be fine by all indications, but it's rather difficult to tell by just a photo.
It is my understanding the engineered lumber can be much more true with regard to having a crown or being warped.
https://en.wikipedia.org/wiki/Engineered_wood
Engineered wood, also called
composite wood,
man-made wood, or
manufactured board, includes a range of derivative
wood products which are manufactured by binding or fixing the strands, particles,
fibers, or
veneers or boards of wood, together with
adhesives, or other methods of fixation
[1] to form
composite materials. These products are
engineered to precise design specifications which are tested to meet national or international standards. Engineered wood products are used in a variety of applications, from home construction to commercial buildings to industrial products.
[2] The products can be used for joists and beams that replace steel in many building projects.
[3]
Typically, engineered wood products are made from the same
hardwoods and
softwoods used to manufacture
lumber.
Sawmill scraps and other wood waste can be used for engineered wood composed of wood particles or fibers, but whole logs are usually used for veneers, such as
plywood,
MDF or
particle board. Some engineered wood products, like oriented strand board (OSB), can use trees from the poplar family, a common but non-structural species.
Some good, some bad, and some great; basically you get what you pay for.
It doesn't take much to make something wobble corner to corner.
It is solid at a rock corner to corner, and does not rack in the slightest.
I think I will most likely lay down a sheet of foam (polystyrene etc.) then possibly another sheet of plywood, then another sheet of foam. As the two most common answers (other than rebuild) were to top it off with one or the other of these two products.
Again, thank you one and all for your suggestions.You all have been a great help, and I doubt that I would have had the idea to do that without you input,
vonRies
