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Welcome to Maple Oatmeal Wooden Blocks.

Build Your Own Set of Wooden Blocks

This website is for building custom sets of wooden building blocks. If you are looking for complete sets of Wooden Blocks for School Classrooms, Preschool, Kindergarten, Home and Family use, please visit Carolina Pratt Unit Blocks.

When you order, please include your phone number without dashes so that we can reach you if there are any questions.

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.

Estimated Weight of Standard Unit Blocks in Hard Maple

A standard basic unit Wooden Block made from Hard Maple (5.5 x 2.75 x 1.375 inches), a double unit plank (11 x 2.75 x 0.6875 inches), or a double unit pillar (11 x 1.375 x 1.375 inches) each weighs about 0.53 pounds.

A hard maple double unit block (11 x 2.75 x 1.375 inches) or a quadruple unit plank (22 x 2.75 x 0.6875 inches) weighs just over one pound.

A quadruple unit block (22 x 2.75 x 1.375 inches) in hard maple weighs a little over two pounds.

Make Your Own Wooden Blocks.

Of course, we’d rather sell you finished hard maple blocks, but we'll also provide instructions and block stock for the experienced woodworking hobbyist.

Instructions for Making Your Own Standard Unit Wooden Blocks.

We’ll walk you through making your own wooden blocks in the classic standard unit block sizes and shapes.

You can start with kiln-dried hard maple from your local fine woodworking shop or purchase milled lumber from us in 2 foot lengths that you can then cut and shape to size.

Make Wooden Block Friends on Facebook, Twitter, and Google+.

Share your passion for wooden blocks and the imagination of childhood!

We'll help you build on that passion. We sell Wooden Blocks รก la carte. The more you buy, the bigger your discount.

Want to make your own building blocks? We'll help you do that, too.

You get updates, discounts, special offers, and more by clicking the "Like" button for our Maple Oatmeal Wooden Blocks page on Facebook. Your friends get to learn about us, too.

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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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