Granite Counter Top Scraps for Sharpening Surface Reference

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Forum topic by hhhopks posted 779 days ago 2718 views 0 times favorited 25 replies Add to Favorites Watch
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550 posts in 961 days

779 days ago

Topic tags/keywords: question jig tip resource chisel plane blade carving tool sharpening

Has anyone used granite couter top scraps as a reference surface for sharpening? They are typically about 1-1/4” thick. It is smooth and shiny. It looks flat. It looks flat with a straight edge. The various pieces with the finished surface facing each other looks flat. Most source suggest glass plate or a granite plate (typically > 2”).

The question is: Are these granite counter top scraps suitable for as a reference surface to shapen plane blades and chisels?

If you have used it, are you happy with it?

It is just a cost saving idea that I am considering.

-- I'll be a woodworker when I grow up. HHHOPKS

25 replies so far

View RH913's profile


51 posts in 1569 days

#1 posted 779 days ago

I’ve got two pieces waiting for the answer…


View ITnerd's profile


261 posts in 1183 days

#2 posted 779 days ago

2 granite scraps here – no problems. Biggest problem is moving them around. If you go the glass route, I think the ideal stuff is called 'float glass'.

Best of luck,

-- Chris @ Atlanta - JGM - Occam's razor tells us that when you hear hoofs, think horses not zebras.

View ShipWreck's profile


536 posts in 2336 days

#3 posted 779 days ago

I have several pieces. They are more than flat enough. I have a couple longer pieces that I have epoxied at 90 degrees to flatten the sides to the soles.

End splash cut-off’s are the best pieces.

View hhhopks's profile


550 posts in 961 days

#4 posted 779 days ago

It just don’t seems to make sense to buy these. They are literallly given granite scraps away for free. You don’t really need a big piece. The big pieces are heavy and they will charge you for them. It is the small pieces that you can get (less than couple square feet). So weight isn’t issue but the small piece should still able to hold the sand paper in place (better than glass?). I guess I’ll give it a shot and not worry about it. Ultimately the end result will determine if it is a go or not. Right?

-- I'll be a woodworker when I grow up. HHHOPKS

View crank49's profile


3323 posts in 1555 days

#5 posted 779 days ago

I have a sink cutout and it works fine.
Have also used a 12” square granite floor tile from HD, about $5.00.
The floor tile works just as well, is lighter and easier to move around, but I really like a little longer surface.

-- Michael :-{| “If you tell a big enough lie and tell it frequently enough, it will be believed.” ― A H

View Greg The Cajun Box Sculptor's profile

Greg The Cajun Box Sculptor

4897 posts in 1892 days

#6 posted 779 days ago

I have a piece of granite top about 8×10” that I use and it is dead on flat…perfect for sharpening. I glued some 1/2” tall rubber bumper feet to the bottom to make it easier to pick up and keep from sliding. I went to a counter top place and they gave me it for free.

-- Every step of each project is considered my masterpiece because I want the finished product to reflect the quality of my work.

View BTimmons's profile


2055 posts in 1069 days

#7 posted 779 days ago

I use one, no complaints. See the most recent blog post on my profile to see it.

-- Brian Timmons, Big T Woodworks - -

View cabmaker's profile


1279 posts in 1393 days

#8 posted 779 days ago

12X12 floor tile here too !

View PurpLev's profile


8475 posts in 2232 days

#9 posted 779 days ago

thats what I use. works fine for me.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View Brit's profile


5103 posts in 1426 days

#10 posted 779 days ago

I use offcuts and even the granite breakfast bar for sharpening and flattening plane soles. I also have a granite cutting board from my local supermarket (£10) that I use for sanding backsaw plates when I restore them. I just hang the brass back off the edge so the plate is flat on the surface.

-- Andy -- Old Chinese proverb say: If you think something can't be done, don't interrupt man who is doing it.

View Bill White's profile

Bill White

3318 posts in 2544 days

#11 posted 778 days ago

Sink cutout here too. Price? Free….Flat? Youbetcha. Price? Free….
I really like free.


View Doss's profile


779 posts in 848 days

#12 posted 778 days ago

Like some others have said, they might be free. If you go by a countertop shop, they’re likely to have a few pieces that are large enough to use that they’ll give away for free. You don’t need a massive piece. Just know what you plan to sharpen and determine the size you need accordingly.

-- "Well, at least we can still use it as firewood... maybe." - Doss

View Bertha's profile


12951 posts in 1277 days

#13 posted 778 days ago

Lowes marble windowsill here.

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

View Tennessee's profile


1447 posts in 1098 days

#14 posted 778 days ago

I’ve used two pieces of tempered layered glass for the last 30 years. Easy to tote around, flat, no problems. I keep 180 grit taped on one for sanding down small wooden items and plastic things, and the other has 400 on it for doing edge sharpening. I would think though, that granite should be true, but there is no law I know of that describes flatness requirements for things like sink cutouts. Still, I would not turn down a piece of granite.

-- Paul, Tennessee,

View willme's profile


3 posts in 645 days

#15 posted 644 days ago

i loves granite countertop, but i never use your idea.

indian stone paving at best price

-- indian stone paving at best price

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