can't see the wood for the trees

can't see the wood for the trees

Cannot see, understand, or focus on a situation in its entirety due to being preoccupied with minor details. The way he's obsessing over one doorknob when we're renovating the entire house makes me think that he can't see the wood for the trees.
See also: see, tree, wood
Farlex Dictionary of Idioms.

cannot see the wood for the trees

 and cannot see the forest for the trees
Prov. Cannot perceive the overview or important things because of concentrating too much on details. The information presented in this textbook is so disorganized that I can't see the wood for the trees. The politician's opponents claimed that she couldn't see the forest for the trees, because she spent so much time trying to solve minor problems.
See also: cannot, see, tree, wood
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

not see the wood for the trees

BRITISH or

not see the forest for the trees

AMERICAN
If someone can't see the wood for the trees, they are so involved in the details of something that they do not understand or pay attention to the most important parts of it. He often helped those who could not see the wood for the trees reach the correct decision. A picture is emerging of an agency that can't see the forest for the trees.
See also: not, see, tree, wood
Collins COBUILD Idioms Dictionary, 3rd ed.

cannot see the wood for the trees

fail to grasp the main issue because of over-attention to details.
The North American version of this expression is cannot see the forest for the trees .
See also: cannot, see, tree, wood
Farlex Partner Idioms Dictionary

not see the ˌwood for the ˈtrees

(British English) (American English not see the ˌforest for the ˈtrees) (informal) not have a clear understanding of a situation because you are only looking at small aspects of it and not considering the situation as a whole: The situation is so complex that many people are unable to see the wood for the trees.
See also: not, see, tree, wood
Farlex Partner Idioms Dictionary
See also:
  • cannot see the wood for the trees
  • can't see the forest for the trees
  • forest
  • not see the wood for the trees
  • not able to see the forest for the trees
  • not able to see the wood for the trees
  • slicker than snot on a doorknob
  • down to (someone or something)
  • down to somebody/something
  • until (one's) dying day