Mitre gauge is a wooden measuring tool with two pieces of wood (one i s a blade, the other stock) that are at fixed angle to one another, and this plan represents mitre gauge for 30, 45 (mitre) and 60 degree angles.

It is a very practical and desirable piece of measuring tool for marking and testing mitre joints with great accuracy. They are easy to make but when you making it, pay attention, that the straight edge and the stock are glued up in accurate of 30, 45 or 60 degree angles, otherwise all the work done with it will be inaccurate.


Mitre, 30 and 60 degrees gauge plans
Project type
Project difficulty
Simple, requires precision
Skill level
for advanced beginners
Level of workshop equipment
Basic hand toools
Applied woodworking joints
Oblique T bridle joint reinforced with dowels

Mitre (Miter) gauge:  292mm (11.5'') x 127mm (5'') x 25mm (1'')

30 degree gauge:  320mm (12.59'') x 102mm (4'') x 25mm (1'')

60 degree gauge:  276mm (10.86'') x 152mm (6'') x 25mm (1'')


Exploded view and parts list
Gauge 30 degree - Parts list
Mitre gauge 45 degree - Parts list
Gauge 60 degree - Parts list
Assembly drawing
Gauge 30 degree - Assembly drawing
Mitre gauge 60 degree - Assembly drawing
Gauge 60 degree - Assembly drawing


Prepare the blade and stock, then mark the stock and saw down the waste side.  It is very important to make the bottom of each slot perfectly flat. Glue the blade on its position, and before the glue dries out,  make sure that the blade and stock are in precisely 30. 45 or 60 degree. Leave assembly to dry.  Then drill four holes in the assembly and glued in a Dowels D6x25mm.  Smooth up the ends of each dowel.    

If the slot in stock is accurately cut, the tool blade should be at the angle of 30, 45 or 60 degree. If this is not the case, carefully correct the slot with chisel.


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Submitted by Ceh Jan