Cutting Mitre Joints in Skirting Board Larger Than 4" (100mm)
Video Demonstration
The Magic Mitre can accommodate skirting board up to 4" high. To cut a mitre joint to fit the angle of your walls in skirting board larger than 4" high, we suggest you use the Magic Mitre to first determine the angle of cut required to assist you in starting the cut at the correct angle.
Having used the template as instructed for cutting mitres, 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 mitre joint required in the 4"x1" material. This will enable you to check to ensure the angle of cut is the one that you require. IE. Before going any further try the 4"x1" first.
When you are satisfied the angle of mitre cut in your two spare pieces of 4"x1" material is correct for the angle of your walls you can then proceed as follows to cut deeper skirting boards.
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 ¾ 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).
Having achieved the above guide mitre 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 skirting board, making sure the 4"x1" timber is above the top of the skirting board and is level and attached to the correct left-to-left or right-to-right workpiece (fig. 20).
Cutting an External Mitre Joint in Tall Skirting Board
Once you have cut your taller skirting board 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 Mitre Joint in Tall Skirting Board
When cutting the left-hand board, we suggest you only mitre the part of the moulding that is shaped and butt joint the remainder of the skirting board.
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 skirting board not required with the aid of a wood chisel (fig. 22 and 23).
When cutting the right-hand skirting board piece, mitre cut the top / shaped part of the skirting board and cut back the remaining board to match the angle of the wall (fig 24).
Please Note
These TOP TIPS for cutting Mitre joints are provided as a service from MML (QS) Ltd. The information is intended to help with the cutting and fitting of mouldings 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.