View a Larger Image of Granite Surface Plate - 2" x 9" x 12" - Grade A
View a Larger Image of Granite Surface Plate - 2" x 9" x 12" - Grade A
View a Larger Image of Granite Surface Plate - 2" x 9" x 12" - Grade A
View a Larger Image of Granite Surface Plate - 2" x 9" x 12" - Grade A
View a Larger Image of Granite Surface Plate - 2" x 9" x 12" - Grade A
  • View a Different Image of Granite Surface Plate - 2" x 9" x 12" - Grade A
  • View a Different Image of Granite Surface Plate - 2" x 9" x 12" - Grade A
  • View a Different Image of Granite Surface Plate - 2" x 9" x 12" - Grade A
  • View a Different Image of Granite Surface Plate - 2" x 9" x 12" - Grade A
  • View a Different Image of Granite Surface Plate - 2" x 9" x 12" - Grade A
Item 144838
Model 144838W

WoodRiver - Granite Surface Plate - 2" x 9" x 12" - Grade A



Estimated Ship Date October 21, 2021 check in-store availability

Save $20 Now Through September 30, 2021

Compare With


Usually only found in machine shops, the super flat face of the WoodRiver® Granite Surface Plate is ideal for leveling small plane beds, flattening waterstones and general sharpening duties. Simply soak a piece of wet/dry sandpaper in water and lay it down on the stone; the capillary action of the water adheres the paper to the stone, eliminating the need for spray adhesives or PSA sandpaper. When done, wipe clean with a paper towel.


  • Stable, ultra flat surface
  • Flat to .0001
  • Moisture and corrosion free
  • Easy to clean
  • Thickness: 2"
  • Width: 9"
  • Length: 12"
  • Weight: 26 lb
What's Included:
  • (1) WoodRiver® Granite Surface Plate - 12" x 9" x 2" - Grade A
  • (1) Surface map
Product Notes:
  • Plate does not have ledges.

Articles & Blogs

Lhl woodcraft 0508 294

Some workshop days are more productive and more enjoyable than others. Follow these 12 tips to get more satisfaction from your time in the shop. 

Read More >
154703 001

Join Lori Haught, Woodcraft Marketing Manager and Woodworking Adventures Blogger, for Part II of a three-part series on refurbishing a unique thrift store find — a Telephone Gossip Bench.

Read More >

Tools every woodworker can use, whether they’re starting out or stepping up.

Read More >
Dscn0978 350

“The American Woodshop” hosts Scott and Suzy Phillips went shopping at Woodcraft to do their annual Christmas Gift Guide video. 

Read More >
Handplane yt thumb

In this video I attempt to restore my grandfathers old Millers Falls No. 9c Hand-plane

Read More >


4.91 out of 5 stars
53 Reviews
  1. 5.0 out of 5 stars
    by on

    Very nice

    I just used mine to flatten the bottom of a el cheapo $30 Buck Bros. hand plane I bought 20 years ago that never worked. The bottom of the plane looks like a million bucks now and magnitudes flatter than any machined part I've ever run across in woodworking.

  2. 5.0 out of 5 stars
    by on

    Flat as advertised and inexpensive!

    I visited the local store with my machinist straight edge and feeler gauges and it was dead flat every axis I checked. The surface was very smooth like 5000 grit. Not sure what some dude was talking about it not being flat and smooth. I did see the bottom of the slab is not finished or flat, but it's the bottom duh! I almost didn't buy this because of some body's review on here.

  3. 5.0 out of 5 stars
    by on

    Pretty damn flat!

    I went to their local store in Leesburg and brought my machinist straight edge as well as my feeler gauges to test how flat it really is. I did this because somebody said it was not flat as advertised in these reviews, glad I didn't listen. However, I did see the rough side he was talking about... It was the bottom of the Granite hahaha, dummy. The actual treated surface is extremely flat and smooth. Just adding my two cents so others know. Took pics but this place doesn't have a place for pictures.

  4. 5.0 out of 5 stars
    by on


    Great sharpening tool. Flat and extremely smooth. I have it out all the time. Saves time. Use 2500 grit for final polish. Wet the granite and paper stays in place.

  5. 4.0 out of 5 stars
    by on

    Good for the money

    While certainly usably flat, it's nowhere near the advertised flatness, simply because of the surface texture. The peaks and valleys that make it very matte are larger than 0.0001". Mine also has a tiny fossil in it, which creates a tiny hole, big enough to feel if running a pencil over it. It's certainly good enough for use with sanding paper, but I wouldn't spray it with a 0.1 micron compound for ultimate lapping. The corners are dead square, which is a good thing. The sides are slightly off from the top, which is likely due to flattening the top without compensating the sides afterwards. But for the price, yes, it's excellent. Just don't expect a $300 surface plate and you'll be fine.

  6. 5.0 out of 5 stars
    by on

    Wow! This is Awesome

    I have saved some pretty gnarly looking blades with this stone. It is probably the best sharpening investment I have made ever. I use this with Scary Sharp method of sharpening large blades. Great value for the dollar invested.

  7. 5.0 out of 5 stars
    by on

    Great Buy!

    I bought this a couple months ago and just used it the other day to sharpen a kitchen knife and one of my chisels. By wetting some wet/dry sandpaper and laying it on the slab, I was able to get a very good edge on both items. I am a beginner so I do need much more practice, especially holding the blades at the correct angles but it still did an excellent job for a fraction of the price you would pay for sharpening stones. It is very heavy for the size but that is a benefit since it doesn't slide around while using it.

  8. 5.0 out of 5 stars
    by on

    every shop needs one

    almost anything that needs to be perfectly flat or sharpened.

  9. 5.0 out of 5 stars
    by on

    Good solid piece

    Very nice granite slab, super heavy (good and bad), non-adhesive lapping film sticks like glue with a little water and patience, then it's great for going to town!

  10. 4.0 out of 5 stars
    by on

    dead flat, dense, shipped in wood box

    Use for sharpening

  11. 5.0 out of 5 stars
    by on

    Perfect for lapping and sharpening -

    Polished the backs of all my chisels and honed a sharp edge to each. Using spray adhesive to hold the wet/dry sanding sheets in place was an easy and simple solution and worked like a charm. Now my chisels all have sharp edges. A great investment at a very reasonable price.

  12. 5.0 out of 5 stars
    by on

    nice and light


  13. 5.0 out of 5 stars
    by on

    Granite Surface Plate

    The first granite plate I ordered was received with a 3 inch along crack along one edge that penetrated more than half way through the thickness. I called WC customer Service and they immediately shipped out a replacement that was received in days and in perfect condition. Thank YOU

  14. 5.0 out of 5 stars
    by on

    A really flat surface

    The flattest surface you will ever have for sharpening plane irons, chisels and knives. Great surface to polish and deburr parts. Works great with wet/dry ultra fine grit sand paper. A must have surface to use to measure part with a indicator. The sale price made this an extremely great buy and value.

  15. 5.0 out of 5 stars
    by on

    Extremely flat surface

    The flatest surface you can use in conjunction with ultra fine sand papers to sharpen plane irons, chisels and knives. Also great for deburring and polishing parts with sand paper or emery cloth abrasives. A must for use in measuring parts with surface gauges and indicators. When on sale, is an extremely great buy.

  16. 5.0 out of 5 stars
    by on

    A good addition to my shop

    Great for touch-up sharpening

  17. 5.0 out of 5 stars
    by on

    Works well

    I use this to sharpen + flatten plane parts and chisels. It works well.

  18. 5.0 out of 5 stars
    by on

    It's flat for sure

    This makes a great little assembly table for very small pieces. Set it atop anything and you have a perfectly flat surface that glue won't stick to. Also, you can't get a flatter surface for sharpening chisels, jointer knives, or whatever. A Little water and some wet/dry sandpaper and away you go.

  19. 5.0 out of 5 stars
    by on

    Granite Surface Plate

    I should have purchased this a long time ago. One of those necessary items in the shop.

  20. 5.0 out of 5 stars
    by on

    Granite Stone

    Makes it so much earier to prep your chisels and hand plane blades for final honing.

  21. 5.0 out of 5 stars
    by on


    As a metal shop guy it just seems "wrong" on so many levels putting abrasives on a surface plate,,, but it sure does work great!!! I picked mine up on travel two years ago, and packed it home. Wife still doesn't understand [$] for a flat rock ;-)

  22. 5.0 out of 5 stars
    by on


    I got this surface plate on sale at my local Woodcraft. I used to use a big hunk of plate glass for lapping and sharpening, but this is much, much nicer. I got some stick-on (PSA) rubber feet and stuck them around the bottom to prevent it from sliding on my bench. I've used it for lapping and sharpening plane and chisel blades, and also for lapping the soles of planes. Most recently, I used it to lap the sole of my new Lie-Nielsen block plane dead flat, and I got a rusty old Stanley #3 at a garage sale and turned it into a first-class production plane (after quite a bit of lapping...) For coarse grit sandpaper, I spray on a VERY light coat of 3M 77 spray adhesive to the back of the sandpaper ONLY, wait a few minutes, then smooth it down. Sheets peel up fairly easily, and I remove adhesive residue with a razor blade followed by an acetone wipe. For wet/dray sandpaper (finer grits, up to 2000), I have a spray water bottle and I mist the surface lightly then smooth it down. Cleanup for water is just a wipe down with a paper towel. Man, I love this thing! Use it for all routine honing. Sits on the corner of my bench and gets plenty of use.

  23. 5.0 out of 5 stars
    by on

    Heavy, Thick, Smooth and Beautiful.

    Love it. Who knew a flat slab of granite could put such a smile on someone's face? This thing is HEAVY! [...] The stone also comes with a factory/lab report, guaranteeing the flatness of the surface. Pretty cool.

  24. 5.0 out of 5 stars
    by on

    Buy one

    If you use metal planes, or sharpen chisels and plane blades, buy one along with a wide assortment of wet-or-dry sandpaper and 3m sharpening film. You don't need to glue the sandpaper, just drop some water on the stone, and the sandpaper will stay in place. I have hundreds of dollars worth of oil stones, and water stones that now mostly stay in their cases.

  25. 5.0 out of 5 stars
    by on

    very glad I choose this product-perfect!

    Very glad I saw this before I purchased another item that I did not feel good about. This will be put to very good use and sure to last a very long time

  26. 5.0 out of 5 stars
    by on

    polished sharp edges

    I used this surface plate up to 1500 grit paper to get a mirror bevel on chisels. Then I restored a old Stanley plane. Perfectly flat and polished. Picked it up on sale for [$] [...]. You can't beat that!

  27. 5.0 out of 5 stars
    by on

    Great Quality, Very Heavy Duty

    Picked this granite slab up on sale and it was well worth it! I didn't have time to use it until last night and it worked great. A little moisture on the stone will lock wet/dry sandpaper to the stone surface and make it very easy to use and cleans up in a flash. I lapped a new Stanley Bailey block plane and honed the blade in one setting and couldn't be happier with how well it held the paper. The weight of the stone is very heavy which helped keep it in place.

  28. 5.0 out of 5 stars
    by on

    Sharping Surface Must Have

    I used my table saw deck and abrasive sheets to do my initial sharpening and polishing of my chisels and plane irons. Glass plates are more expensive, chip, & broke. However, with this Granite Surface Plate it is unlikely I'll have those problems, and is an outstanding performer. I am also rebuilding my sharpening station top to incorporate the plate into it.

  29. 5.0 out of 5 stars
    by on

    Best money you can spend on sharpening.

    I absolutely love this stone. I use it WITHOUT any sandpaper to flatten my waterstones. Splash some water on the granite and then rub the already soaked waterstone on the surface. Works like magic on my 800, 1000, 4000, and 8000 grit stones. I would have to throw down some sandpaper to flatten my 220 grit stone though.

  30. 5.0 out of 5 stars
    by on

    Simple but VERY effective

    Understandably, one would wonder why anyone would get excited about a piece of rock. But if you've ever tried to get a plane sharp, but couldn't because your waterstone had bowled out, then you would understand. I settled on this over the very expensive diamond stones because of all the positive reviews. I figured, what the heck, it was on sale. When the box arrived, it truly did weigh 30 lbs, so it is quite substantial. It also came in a crate and a cardboard box so it was well protected. It also had a laminated certificate of flatness. Apparently, they test each one, give it a serial number, and then show you the individualized results. You have to like that! Here's my first experience with it. I taped a piece of sandpaper to it, and flattened my waterstone in under a minute. It also saved my Norton flattening stone from being tossed out because it was not flat out of the box. Suffice it to say that it turned my inexpensive plane into a high quality one. I should have invested in this a long time ago.

  31. 5.0 out of 5 stars
    by on

    Wood river surface plate.

    This product has two functions: Be flat and be hard. It does both very well and at a bargain price.

  32. 5.0 out of 5 stars
    by on

    Great surface on the market

    It is the best surface plate you can buy.

  33. 5.0 out of 5 stars
    by on


    Should have done it years ago.

  34. 5.0 out of 5 stars
    by on

    Great product

    as a flat surface

  35. 5.0 out of 5 stars
    by on

    Solid and Flat

    Having a flat reference in your shop is indispensable for a million tasks. But this surface plate really shines if you use the scary sharp sharpening system. I used this plate to flatten a lot of chisels and plane blades. A flat back is the first step to a truly sharp blade. I am quite pleased with my purchase.

  36. 5.0 out of 5 stars
    by on

    describes what is being sold

    It is what is says, a piece of perfectly square and flat granite

  37. 5.0 out of 5 stars
    by on

    Worthwhile investment

    Would be more convenient if some type of item was available to contain/transport the stone due to the shear weight involved. I plan to build some type of box to do this for my shop. Else the stone could get broken or chipped if it is not set down carefully.

  38. 5.0 out of 5 stars
    by on

    Made my sharpenning fast, easy and sharp

    it's really very usefull

  39. 5.0 out of 5 stars
    by on

    Should have purchased years ago

    I own 30 years worth of sharpening systems; grinders, sharpening stones [traditional, diamond and Japanese], flat tempered glass and even a Tormak. This simple piece of granite has no equal when it comes to quickly flattening the backs of tools and plane bottoms. It's a bit small for a true shop reference, but it will suffice for checking rulers, plane iron edges and other small critical measuring devices. It weighs a lot and will require protection from hard blows and perhaps a permanent resting place by a shop sink. Additonally, you will go through some wet/dry paper using this system, but only during initial flattening. The price (on sale at Woodcraft with free shipping)is awesome. The product comes in its own wooden crate packed inside a well protected cardboard box. Wish I found this years ago!

  40. 4.0 out of 5 stars
    by on


    Super! I use it more than I thought I would. If it were bigger it would be more fun, but probably would not work any better.

  41. 5.0 out of 5 stars
    by on

    Great product [...]

    Comes with a spec sheet to verify flatness . Perfect size. Nice and heavy so it won't move around during use as a sheet of glass might. No need to build a holder to keep it stationary. [...]

  42. 5.0 out of 5 stars
    by on


    Very good buy.

  43. 5.0 out of 5 stars
    by on

    works well

    Great to have a flat surface to work on.

  44. 5.0 out of 5 stars
    by on

    Quality product at afordable price

    I always wanted a Granite Surface plate but couldn't justify the expenditure. This product is exactly what I needed. Quality at a reasonable price. Thanks

  45. 5.0 out of 5 stars
    by on

    Granite Surface Plate

    Will be using this Granite plate to sharpen flat blades for plane, and turning tools.

  46. 5.0 out of 5 stars
    by on

    Accurate and true

    The "Granite Surface Plate" is a must if you want to true a plne base or even sharpen a plane blade, just aply some spray adheasive on whatever grit sand paper or emery paper or oxide paper and let it dry to ware it dont shine any more than aply it to your Granite Surface Plate and go. I used it to true up my cheep Skill tabletop bandsaw table, it also polished it nice and smooth.

  47. 5.0 out of 5 stars
    by on

    Flat and Cheap

    I bought this granite surface place to replace a glass surface plate that was not flat. Aside from actually being flat, it is much more substantial than glass, does not slide on my bench during use, and being two inches thick it is much easier to let the tool hang off the edge (e.g. when flattening the back of a chisel). I will use it to flatten the sole of an old plane, flatten my water stones, and for some scary sharpening. I got mine on sale and with free shipping which makes this one of my smartest and most economical purchases.

  48. 5.0 out of 5 stars
    by on

    great buy

    for flatness & sharpening

  49. 4.0 out of 5 stars
    by on

    Want "Flat"? Get "Flat" here!

    I'm a retired machinist and know the value of keeping your tools sharp & accurate. For keeping sharp flat plane irons, chisels, planer & jointer knives, or just a plain accurate layout surface to work from, this plate is Great! Just don't drop it!

  50. 5.0 out of 5 stars
    by on

    great value

    perfect size

  51. 4.0 out of 5 stars
    by on

    essential for sharpening

    Comes with laminated computerized evaluation of plate flatness, expressed in thousandths of inch. Used with wet/dry sandpaper and a little water, it is essential for flattening the back of plane blades and chisels as well as the soles of shorter planes.

  52. 5.0 out of 5 stars
    by on

    Never knew how much I needed this!

    Perfect for flattening Japanese waterstones, truing planes and sharpening chisels. Much better than the piece of glass I had been using.

  53. 5.0 out of 5 stars
    by on

    heavy and flat

    This is much better than a glass plate for flattening plane irons and water stones. The plate is much flatter than anything a woodworker is likely to have on hand, but reasonable priced. It is extremely heavy! Use care in moving it. I'm looking now for a place to keep it where it can be used and not moved.

Top of Page