That will be fine.
A half inch thick steel plate, A half inch thick plywood, Brick, Concrete Block
The subfloor plywood typically used in construction projects is around 3/4 inch thick.
The thinnest plywood available on the market is typically around 1/8 inch thick.
For optimal support and durability, the plywood under a mattress should be at least 3/4 inch thick.
For a subfloor, typically 3/4 inch thick plywood is recommended for stability and durability.
It is supposed to be a 1/4 inch thick. It is usually a little thinner though.
The answer will depend on what it is filled with - air or lead, for example.
For flooring, it is recommended to use plywood that is at least 3/4 inch thick to provide sufficient strength and durability.
Not very thick. Many building codes (perhaps most) allow 3/4 inch waferboard or 5'8 inch plywood as the structural subfloor over 16" O.C. joists. This is fine for normal sized floors with carpet or vinyl overlay, but is insufficient for very large floors or floors to be finished in ceramic, slate or porcelain tiles.
Scrabble tiles are 19 millimeters (0.75 inch × 0.75 inch) square. They are 4 millimeters (0.16 inch) thick.
For a mobile home floor, typically 3/4 inch thick plywood is recommended for optimal strength and durability.
The best plywood to use for an attic floor is typically 3/4 inch thick, tongue-and-groove plywood. This type of plywood is strong and durable, providing a sturdy surface for walking and storing items in the attic.