has anyone cut steel sheet metal before?

michoumonsterMay 14, 2013

Hi all, i have a huge wooden frame that i was thinking would be nice to make into a giant magnetic chalkboard. i want to cut a sheet of steel to put inside and paint over with chalkboard paint to make the chalkboard. but am wondering, is it easy to cut the steel myself or something i should ask my GC to do? hesitant to ask since we are pushing him to finish our house.. haha..
there are a few online tutorials on cutting sheet metal but they look easier said than done sometimes..
thanks for your advice!!

Thank you for reporting this comment. Undo
PRO
Sophie Wheeler

You need a large mechanical shear or you get warpage. For that, you need a machine shop.

Just use the magnetic paint over a piece of masonite.

    Bookmark   May 14, 2013 at 2:57PM
Thank you for reporting this comment. Undo
michoumonster

hollysprings, i read that the magnetic paint doesn't work that well. do you have a good brand you can recommend? otherwise, thanks for the tips on the warpage. i will try to find a machine shop to cut the metal for me. thanks!

    Bookmark   May 14, 2013 at 3:35PM
Thank you for reporting this comment. Undo
Holly- Kay

Most small machine shops will do it for a song. Also have them price the sheet metal for you as they may charge less than an MSC or Grainger would.

    Bookmark   May 14, 2013 at 3:44PM
Thank you for reporting this comment. Undo
wi-sailorgirl

I bought a piece of steel sheet metal in the plumbing section of Home Depot for $10 and easily cut it with a good pair of tin snips. Glued it on a piece of quarter-inch thick luan, painted it with chalkboard paint, stuck a homemade frame around it and made myself a magnetic chalkboard for the inside of the pantry door.

I would say the easiest part of the entire project was the cutting. You should probably wear gloves because the edge gets sharp, but I didn't and managed to emerge unscathed.

    Bookmark   May 14, 2013 at 3:44PM
Thank you for reporting this comment. Undo
brickeyee

"small machine shops"

Look for a sheet metal fabricator.

You can cut with minimal deformation using aircraft snips instead of tin snips.

They also have a lot more leverage than tin snips.

The right and left aircraft snips will only deform the piece you are removing.

    Bookmark   May 14, 2013 at 3:53PM
Thank you for reporting this comment. Undo
wi-sailorgirl

I'm not really sure what the difference is, but that may have been what I used. It was sort of a giant scissors. We had them in the house so they can't be anything too fancy though.

    Bookmark   May 14, 2013 at 3:55PM
Thank you for reporting this comment. Undo
brickeyee

"It was sort of a giant scissors."

Those sound like tin snips.

Aviation snips (AKA aircraft snips) use a linkage to get more cutting force and when used correctly the wast piece is what bends for the left and right handed cutter (green and red handles).

The straight cutter yellow handles) will require some bending of both pieces for clearance unless you use blind straight cutters that remove a strip of metal about 1/8 inch wide (they use three blades with only the middle one moving).

Here is a link that might be useful: Pics of aircraft/aviation snips

    Bookmark   May 14, 2013 at 4:26PM
Thank you for reporting this comment. Undo
michoumonster

wi-sailorgirl, that is great news! what gauge sheet metal did you buy at Homedepot?

brickeeye, thanks for the advice! i will look for the aircraft snips. hoping they sell at homedepot..

holly-kay thanks for the tip about the metal shop. i was thinking it would be more costly to go this route, but seems not..

i will try the home depot route first. just because it is right around the corner from me.. if it doesn't turn out,
i guess my fallback will be to look for the metal shops.
will post back results! thank you everyone!

    Bookmark   May 14, 2013 at 4:33PM
Thank you for reporting this comment. Undo
brickeyee

HD has Weiss brand aircraft snips.

Make sure you have heavy enough leather gloves.

The edges of freshly cut sheet metal are razor sharp and the oil on steel makes for slow healing from the bottom up of must cuts.

Bone deep cuts occur with relative ease.

    Bookmark   May 14, 2013 at 4:41PM
Thank you for reporting this comment. Undo
wi-sailorgirl

I don't honestly know what gauge it was, but it's not too thick (hence why I mounted it on the luan). Just make sure you go to the plumbing department for it. I think it was a 24"x30" sheet. Its real purpose if for behind sinks or where you are soddering pipe close to a wall to prevent starting a fire.

    Bookmark   May 14, 2013 at 4:50PM
Thank you for reporting this comment. Undo
Angie_DIY

Another option is just to have it cut to your exact size by the place that supplies the metal. Lots of places supply metal cut to your specs, either for no additional charge or for a nominal charge.

    Bookmark   May 14, 2013 at 4:54PM
Thank you for reporting this comment. Undo
michoumonster

thanks angie! i will call around if my home depot efforts fail.

wi-sailorgirl, thanks again for the advice. i am off to HD now!

brickeeye, sounds scary. i will pick up a pair of thick gloves too. thanks for the warning!

    Bookmark   May 14, 2013 at 5:47PM
Thank you for reporting this comment. Undo
sombreuil_mongrel

Grinder works, too, with no distortion; possibly some bluing at the edges. Lots of sparks, tho'.
Casey

    Bookmark   May 14, 2013 at 6:34PM
Thank you for reporting this comment. Undo
Russel_Matt

what's the thickness of the sheet you are planning to use? I will recommend snips if the sheet is thinner. Here is a video about various snips, might be helpful. https://www.youtube.com/watch?v=qAOQfUaRZyw&app=desktop

I got this link few days back when I was asking my friend to assist me with some work. I work for a sheet metal fabrication company (www.bayviewmetals.com) and there we mostly use machines to do the most of the cutting and because of that I was losing the skills and knowledge. This video really helped me a lot. Do check it.

    Bookmark   March 26, 2014 at 1:49AM
Thank you for reporting this comment. Undo
greenhaven

''You can cut with minimal deformation using aircraft snips instead of tin snips."

Good to know! Problem for ME is that i think I have also used such tools to cut heavy steel and they still did not bend the waste pieces back and away from the cutting line.

I have cut corrugated steel barn siding with a variety of implements, including (but not necessarily limited too): snips, reciprocating saw and circular saw. Snips were useless after about four inches of cut, I reeeeally should have used ears plugs when using the reciprocating saw and it was difficult to control, but the circular saw did not do too badly as long as you stayed well clear of the flying steel chips. :o/

BUT, that is a lot heavier than what you are likely to use for your chalkboard. I digressed, but you should be good with a light-gauge steel and good aviation snips.

    Bookmark   March 26, 2014 at 9:02AM
Sign Up to comment
More Discussions
Help needed with this beam!!!
We had part of a wall taken down in the kitchen &...
mark_rachel
Soapstone in the Midwest/St. Louis area?
Hi everyone. I've been lurking here for the past year,...
designsaavy
Help on Cabinet Approach / Selection
Hi, I've actively scoured the forum for useful tidbits...
fshine
Need floorplan advice/help
Hello everyone! Looking for floorplan advice on our...
K L
Please help with Kitchen floorplan
Hello everyone, My husband and I are building a new...
mary8153
Sponsored Products
Gotham Saucer - WHITE
$29.00 | Horchow
WS Bath Collections Epoca Impero 66 Inch Slipper Acrylic Clawfoot Tub - EPOCA IM
Hayneedle
Besa Lighting Jodi 2WM-673006 Bathroom Vanity Light - 2WM-673006-BR
$477.00 | Hayneedle
New Modern Collection Gray 9x12 Rabat Moroccan Hand Knotted Wool Area Rug H6877
BH Sun Inc
Woodstock Asli Arts Thatched Roof 32-Inch Wind Chime - C707
$29.99 | Hayneedle
New Sepia Brown Veg Dyed Runner Oushak HandKnotted Wool 3'x8' Oriental Rug H5673
BH Sun Inc
Blast Zone Crocodile Isle Interactive Water Inflatable - INF-CIWP
$649.99 | Hayneedle
Kitty Mansions Spruce Cat Tree - SPRUCE-GB
$91.49 | Hayneedle
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™