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Find The Best Unit Blocks — Wooden block

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Are you looking for one of these wooden block shapes?

Standard Unit Block Shapes – Wooden Block Shapes and Sizes.

These are based upon the Standard Unit Block invented by Caroline Pratt 100 years ago and used widely as a play-based educational material. Dimensions are given in inches.

Click here to show hide definitions with size, shape, and dimensions of standard unit blocks.

Click on the name of the wooden block shape to search for that shape of unit block.

Basic Units
Wooden blocks measuring 5.5 x 2.75 x 1.375 inches. The base wooden block size. All other standard unit blocks are fractions or multiple of the basic unit. Another term for standard units.
Standard Units
Wooden blocks measuring 5.5 x 2.75 x 1.375 inches. This is the basic unit with its 4:2:1 ratio upon which all other shapes are based. Educator Caroline Pratt extended Froebel's Fourth Gift using a slightly larger wooden block made from hard maple.
Half Units
Wooden blocks measuring 2.75 x 2.75 x 1.375 inches. These square blocks are half the length of the basic standard unit block but the same width and depth. In cheaper sets, half units may be substituted for standard unit, or even called standard units, to increase the advertised block count and reduce shipping weight. Compare with Melissa & Doug 60 Standard Unit Blocks.
Double Units
Wooden blocks measuring 11 x 2.75 x 1.375 inches. These blocks are twice as long as the standard unit block. In cheaper sets, there may be only two or less of these to increase the block count and reduce shipping weight.
Quad Units
Wooden blocks measuring 22 x 2.75 x 1.375 inches. The same as Quadruple Units.
Quadruple Units
Wooden blocks measuring 22 x 2.75 x 1.375 inches. These blcoks are four times as long as standard units. Almost nonexistent in economy unit block sets. Compare with Melissa & Doug 60 Standard Unit Blocks.
Ramps
Wooden blocks measuring 5.5 x 2.75 x 1.375 inches. The same dimensions as the standard unit except one 2.75 edge is cut off to make the 5.5 x 1.375 inch sides triangular.
Triangles
Wooden blocks measuring 5.5 x 2.75 x 1.375 inches. The same dimensions as the standard unit except one 1.375 edge is cut off to make the 5.5 x 2.75 inch sides triangular.
Small Triangles
Wooden blocks measuring 2.75 x 2.75 x 1.375 inches. The same dimensions as the half unit except one 1.375 edge is cut off to make the 2.75 x 2.75 inch sides triangular.
Pillars
Wooden blocks measuring 5.5 x 1.375 x 1.375 inches. Square columns that are half the width of the standard unit but the same length.
Double Pillars
Wooden blocks measuring 11 x 1.375 x 1.375 inches. Square columns that are half the width of the standard unit and double the length.
Arches
Wooden blocks measuring 5.5 x 2.75 x 1.375 inches. The same dimensions as the standard unit except for a 2.75 inch diameter semicircle cut out of the middle of the one 5.5 inch edge.
Half Roman Arches
Wooden blocks measuring 5.5 x 2.75 x 1.375 inches. The same dimensions as the standard unit except for a 1.375 inch radius quarter circle and half pillar removed from the one 5.5 inch edge creating an "L" shaped block. Two of these may be use together to create a Roman Arch.
Small Cylinders
Wooden blocks measuring 5.5 x 1.375 diameter inches. Round columns that are half the width of the standard unit but the same length.
Large Cylinders
Wooden blocks measuring 5.5 x 2.75 diameter inches.Round columns that are double the depth of the standard unit and the same length and width.
Quarter Circles
Wooden blocks measuring 2.75 x 2.75 x 1.375 inches. These blocks are the same dimensions as half units except one corner is removed to create a quarter circle shape on the 2.75 by 2.75 inch side.
Elliptical Curves
Wooden blocks measuring 11 x 8.25 x 1.375 inches. These blocks add a half unit to one end of a 8.25 inch radius quarter cicle arch. A standard unit can fit under the half unit and a 2.75 inch radius quarter circle and 5.5 inch radius quarter circle arch can fit under the curved portion of an elliptical curve.
Quarter Circle Arches
Wooden blocks measuring 5.5 x 5.5 x 1.375 inches. A 2.75 inch radius quarter circle can fit under this 5.5 inch radius quarter circle arch.
Quad Unit Floor Planks
Wooden blocks measuring 22 x 2.75 x 0.6875 inches. See quadruple unit planks.
Quadruple Unit Planks
Wooden blocks measuring 22 x 2.75 x 0.6875 inches. These blocks are ideally half thickness quadruple units used for roads, roofs, floors, tables and bridges.
Double Unit Planks
Wooden blocks measuring 11 x 2.75 x 0.6875 inches. These blocks are ideally half thickness double units used for roads, roofs, floors, tables and bridges.
Floor Planks
Wooden blocks measuring 5.5 or 11 or 22 x 2.75 x 0.6875 inches. Half-thickness standard units, double units, or quadruple units used to make floors.
Roof Planks
Wooden blocks measuring 5.5 or 11 or 22 x 2.75 x 0.6875 inches. Half-thickness standard units, double units, or quadruple units used to make roofs.
Road Planks
Wooden blocks measuring 5.5 or 11 or 22 x 2.75 x 0.6875 inches. Half-thickness standard units, double units, or quadruple units used to make roads. May include intersections
Half Pillars
Wooden blocks measuring 2.75 x 1.375 x 1.375 inches. Square columns that are half the length and half the width of standard units.
Half Cylinders
Wooden blocks measuring 2.75 x 1.375 diameter inches. Round columns that are half the length and half the width of standard units.

Featured Standard Unit Blocks: Maple Oatmeal Wooden Blocks

We recommend these wooden blocks for children of all ages.

>> More Wooden Blocks for Kids for your home or classroom.
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