Cutting Miter Joints in Baseboard Larger Than 4"
Video Demonstration
The Magic Mitre can accommodate baseboard up to 4" high. To cut a miter joint in baseboard larger than 4" high, we suggest you use the Magic Mitre to first determine the angle of cut required.
Use the template as instructed for cutting miters, set and lock the workpiece holders at the required internal or external angle.
Then, using a spare piece of timber (say 4"x 1"x 12" long) as shown in Fig 10a. Cut the miter joint required in the 4"x1" material. This will enable you to check the angle of cut.
When you are satisfied the angle of miter cut in your two spare pieces of 4"x1" material is correct for the angle of your walls you can start to cut deeper baseboards.
After testing, and without changing the correct angle at which the tool is set, place the 4"x1" back into the workpiece holder and cut 3/4 of the way through the 4"x1" (fig. 18) for internal angles (fig. 19 for external angles). Always mark the 4"x1" with the words "face-side". IE. the side facing you and with left or right hand and internal or external (see fig 18 and 19).
With your guide miter cutting slots in your 4"x1" material, proceed to attach / clamp the 4"x1" to the face side of your 6", 7", 8" etc. high baseboard, making sure the 4"x1" timber is above the top of the baseboard and is level and attached to the correct left-to-left or right-to-right workpiece (fig. 20).
Cutting an External Miter Joint in Tall Baseboard
Once you have cut your taller baseboard as deep as the guide slot in your 4"x1", remove the 4"x1" and, with the aid of a square, draw a line on your board to guide you in the remaining cut (fig. 21).
Remember the golden rule and secure your taller board in a vice or bench clamp whilst cutting so as to avoid any accident.
Cutting an Internal Miter Joint in Tall Baseboard
When cutting the left-hand board, we suggest you only miter the part of the baseboard that is shaped and butt joint the remainder of the baseboard.
For example, once you have cut through the top / shaped part of the left-hand board, stop cutting any further and remove that part of the baseboard not required with the aid of a wood chisel (fig. 22 and 23).
When cutting the right-hand baseboard piece, miter cut the top / shaped part of the baseboard and cut back the remaining board to match the angle of the wall (fig 24).
Please Note
These TOP TIPS for cutting miter joints are provided as a service from MML (QS) Ltd. The information is intended to help with the cutting and fitting of moldings around the house with the use of the "Magic Mitre" product.
MML (QS) Ltd assumes no liability for omissions, errors or the outcome of any project. The reader and user of the product must always exercise all reasonable caution and follow all applicable codes and regulations and the safety instruction.