Poster Magnet Board

Step 3 Cut Tin to Size

Let's see if you need to cut the tin? Lay the tin on top of the backing and square it up (use your gloves). If it is larger than the backing then you need to cut it. If you don't need to cut it then skip to the next step. Otherwise, read on.

If I have to cut the tin, I like to make it smaller than the backing by at least 1" on a side. Smaller is fine since we are going to position and tape the tin to the backing in the next step. Let's cut it! (You are wearing gloves, right?)

(1) Prepare tin:
Lay the tin flat on a durable work surface (tin will scratch surfaces). (See picture.)

(2) Measure and Mark:
Use the tape measure and straight edge to mark lines where you need to cut. (See picture.)

(3) Cut it:
Pick up one side of the tin with one hand and start cutting with the other using the tin snips. If you are not familiar cutting with tin snips, there is a nice explanation at eHow: How to Cut With Tin Snips The cut doesn't have to be perfect, just close. (See picture.)

(4) Inspect the Cuts:
Tin snips can make sharp pointy spikes along the edges. Look at your cut. If you find any of these then use a hammer and scrap piece of wood to flatten them down. (See picture.)