The phrase "a block of paper" is correct and usable in written English.
It can be used to refer to a quantity or a specific type of paper, often in contexts related to printing, writing, or crafting.
Example: "I need to buy a block of paper for my art project to create some beautiful sketches."
Alternatives: "a ream of paper" or "a stack of paper".
That has left the charity with a big block of paper that, for the purpose of financing its operations, is essentially worthless.
Holding his notebook, a block of big sheets of paper stapled together and divided into three columns, he went from one body to the next.
The woman at the restaurant's front checked my (fake) name off a short list of reservations on a piece of paper on a block of wood in front of her.
From a rack of other guns, he selects a rifle and fires several rounds into the block of paper, but once again finds the results lacking.
Burbank police and the Los Angeles County Sheriff's Department Bomb Squad responded to the scene after the CHP officer found what turned out to be a block of wood wrapped up in paper, with wires sticking out of it, inside an impounded car, officials said.
The thick backing board onto which the sheets of paper are bound keeps everything stable and makes it easy to hold the block of paper on your lap while working.
The artist provided an ink drawing on thin paper, which was pasted to a block of cherry wood and rubbed with oil until the upper layers of paper could be pulled away, leaving a translucent layer of paper that the block-cutter could use as a guide.
Brown drew each of the 1325 panels separately on watercolour paper on a block of wood he placed on his lap in lieu of a drawing table, which allowed him seamlessly to rearrange, insert, and delete panels as he saw fit.
In the context of this paper, we define a block of statement as a set of statements of a program.
In a small alcove, eight blocks of paper city occupy a pedestal of about a square yard.
