Steps
Step 1

First, I devised a plan of measurements that would fit the arch mirror. 600mm x 950mmÂ
Cut listÂ
2 x 146mm x 575mm
2 x 146mm x 568 mm
Back panel 543 x 568mm
Step 2

Using a mitre saw or table saw with a blade suitable to cut melamine (you can also add tape along your cut line to reduce tear away), I cut all the pieces to size
Step 3

I used corner clamps to create the box, and with pilot holes and chipboard screws, I screwed it together.
As long as it is squared, you can add your back panel. TIP: If it doesn't fit perfectly, you can always sand down the edges of melamine and gap-fill the corners for a seamless finish.Â
Step 4

I added tape and then traced around the mirror onto melamine and cut the arch shape using a jig saw and the right blade for melamine.Â
Step 5

Using an iron and melamine edge banding I followed the direction, and I found using a Stanley knife and 240 grit sand paper to clean up the edges worked better than the fancy tool. Â
Step 6

Optional step!Â
This was my first time working with melamine, and it wasn't the professional finish I wanted, so I decided to paint the melamine to cover up imperfections. I first used BIN Primer and then Dulux aquanamel in semi-gloss.
https://www.bunnings.com.au/zinsser-470ml-b-i-n-primer-sealer-stain-killer_p1560189?store=8175&gclid=CjwKCAjwtuOlBhBREiwA7agf1okJK1-plCBFyXhE6-NPo1RmM-eXt2erCYg0BY1DMbbHq6cOUPTcDhoCzLsQAvD_BwE&gclsrc=aw.ds
https://www.bunnings.com.au/dulux-500ml-vivid-white-aquanamel-semi-gloss-interior-exterior-paint_p0280040
Step 7

After figuring out where I wanted the hinges to sit and where I wanted the mirror to sit above the basin, I followed the directions on the hinge package. I had a hinge jig which made this step easier.Â
Step 8

I followed the directions on the liquid nails and glued the mirror to the melamine arch, and prayed that it held 😕
Step 9

I installed the mirror after it had cured and fiddled around with the hinges to get everything aligned, and TA-DA, it is DONE!
.... well I still need to add a shelf. I bought these clips, so it should be an easy install.Â
https://www.bunnings.com.au/taskmaster-5mm-pin-nickel-plated-metal-shelf-supports-10-pack_p0290585