Unit block
title: "Unit block" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["construction-toys", "educational-toys", "early-childhood-education-materials", "wooden-toys"] topic_path: "general/construction-toys" source: "https://en.wikipedia.org/wiki/Unit_block" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::figure[src="https://upload.wikimedia.org/wikipedia/commons/b/bd/Unit_block_wagon.jpg" caption="Wooden unit blocks in a wagon"] ::
A unit block is a type of standardized wooden toy block for children. Known also as standard unit blocks or kindergarten blocks, these building blocks are common in preschools and some kindergarten classrooms in the United States.
Sizes
A unit block is 5.5 inches long, 2.75 inches wide, and 1.375 inches thick, giving the dimensions a 1:2:4 ratio. Larger pieces include the double (11 inches long) and quadruple (22 inches long) sizes. Smaller sizes are made in various fractions of the standard unit.
History
::figure[src="https://upload.wikimedia.org/wikipedia/commons/e/e6/Child_playing_with_unit_blocks_2.jpeg" caption="Childcraft]]."] ::
Wood
Unit blocks vary in price according to the wood used and the manufacturer. Maple blocks (the original wood put forth by Pratt) are more expensive than birch or beech, which in turn are more expensive than rubberwood.
References
References
- "communityplaythings.com - Our History".
- "The Economist explains How do unit blocks help children learn?". The Economist.
- [https://web.archive.org/web/20080528093432/http://www.cityandcountry.org/cc2/mission.html City and Country School Mission/Philosophy]
::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::