Lumber Crayons
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Lumber Crayons for Timber, Construction, and Industrial Marking
Lumber crayons — also known as keel crayons or timber markers — are the workhorse marking tool of the forest products and construction industries. CSP Forestry carries professional-grade lumber crayons in standard colors that write on rough, wet, or oily surfaces including green logs, rough-sawn lumber, concrete, and steel. Our lumber crayons are formulated with a wax base that leaves a bold, legible mark visible from a distance — essential for grade marking, tally marking, and sort identification at the landing, mill, or construction site.
We carry lumber crayons from trusted brands including Dixon, Markal, and scannable lumber chalk for automated scanning applications. For markers that can be used on metal and non-porous surfaces, see our metal marking products and paint stiks. Browse our complete marking products catalog for every timber and construction marking solution.
Frequently Asked Questions
What are lumber crayons (keel) used for?
Lumber crayons are used to mark grade, tally, dimensions, or sort information on logs and lumber at the landing or mill. They write on wet, rough, or frozen wood where other markers fail — a standard tool in logging and sawmill operations.
What colors do lumber crayons come in?
Standard lumber crayons are available in red, blue, yellow, white, orange, and black. Different colors are used for different grades, sorts, or operations to provide fast visual identification.
Do you carry scannable lumber chalk?
Yes. Our scannable lumber chalk is specially formulated to be readable by automated scanning systems in modern mill operations — an important product for mills upgrading to automated sorting and grading systems.
What brands of lumber crayons do you carry?
We carry lumber crayons from Dixon, Markal, and other professional marking brands. Browse our lumber crayons and lumber crayon and marker sets for all available options.
