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New woodshop #4: Floor is in.

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Blog entry by Combo Prof posted 09-01-2017 07:31 PM 1115 reads 0 times favorited 8 comments Add to Favorites Watch
« Part 3: Update Part 4 of New woodshop series Part 5: Holiday work in the shop »

Manage to get the shop floor in:

Floor consists of 4 layers

  • CDX 3/8 plywood oriented orthogonal to layer below.
  • CDX 3/8 plywood oriented orthogonal to layer below.
  • 1.5 inch thick Foam Insulation corralled with 2 by 6 P.T. lumber.
  • 4 mill plastic

Here I have the pleasure of drilling pocket holes to receive concrete anchor screws with MF 721 and No. 12 Ford pattern auger bit.

I really dislike installing concrete anchor screws by the way. I nearly burnt out my Dewalt hammer drill.

Below is the progress made by the Electrician.

The new 200 amp electrical panel was supposed to be in by mid August.

Next trip down will be around Thanksgiving, when I think I may install soundproofing insulation, paint the floor and run some electrical lines.

-- Don K, (Holland, Michigan)



8 comments so far

View Hermit's profile

Hermit

211 posts in 1531 days


#1 posted 09-02-2017 12:03 AM

Looks good so far. Curious as to why you’re applying a wood floor over the top of concrete?

-- I'm like the farmer's duck. If it don't rain, I'll walk.

View Combo Prof's profile

Combo Prof

3698 posts in 1483 days


#2 posted 09-02-2017 12:19 AM

Five reasons.

  1. Where I live now in the winter I could not stand on the concrete more than an hour without my feet freezing even though the shop was heated. It should not be such a problem now that I move to lower michigan.
  2. It is not as tiring to stand on a wood floor then concrete.
  3. Tools survive longer when dropped on wood then on concrete.
  4. When the shop walls are finally in I hope the shop section will be cheaper to heat and air condition.
  5. Ground moisture will be kept from the tools.

-- Don K, (Holland, Michigan)

View bruc101's profile

bruc101

1260 posts in 3748 days


#3 posted 09-02-2017 04:24 AM

I’m going to agree with you on the concrete floor. When I retired, and handed over our millwork shop to our daughters, and started working in my small personal shop and got off those concrete floors to a plywood floor, my feet and legs felt like they had a new lease on life. I’ll back you up also on how much warmer it will be than concrete unless you have the floor heated.

If I built me a new shop it would definitely not have a concrete floor in it. I dropped a glass jar full of dye on it today and all it did was bounce one time. If it had been a concrete floor it would be dyed a cherry wine color now.

Looks like you’re coming along great with your shop. Looking forward to seeing it completed.

-- Bruce Free Plans http://plans.sawmillvalley.org

View Boxguy's profile

Boxguy

2767 posts in 2473 days


#4 posted 09-02-2017 06:17 AM

Don, nice start. The floor should be much warmer and much easier on your feet and legs. Do you think it will squeak? Now would be an easy time to paint it.

-- Big Al in IN

View CFrye's profile

CFrye

10490 posts in 2046 days


#5 posted 09-02-2017 06:45 AM

Progressing, Don. Good to see it!

-- God bless, Candy

View Combo Prof's profile

Combo Prof

3698 posts in 1483 days


#6 posted 09-02-2017 10:21 AM

Bruce With age comes wisdom, and unfortunately sore feet and legs. I had hoped to put in 25 psi foam but could only get 15 psi foam locally. But it will do and has some cushion to it.

AL I hope it won’t squeak. I put in 200 GRK fin/trim screws. Last time I did this i used 1 layer of 3/4 inch tongue and groove plywood with very few screws. But the CDX was so warped and wave I needed the screws to straighten it out. I would have prefered two layers of 1/2 AC plywood, but I am being cheap. I am very worried what will happen when it expands and contracts. but we will see. Once I get the heavy tools and workbench moved it should not be a problem. I had to hoped to move tools in on November, but I think because of winter etc I will wait. Incidentally U-Haul rental is 1/4 the cost in winter. So instead I will just work on the walls, electrical and floor painting. Leaning towards 3 coats of poly.

Candy thanks for the encouragement.

-- Don K, (Holland, Michigan)

View MC's profile

MC

234 posts in 2553 days


#7 posted 09-02-2017 11:03 AM

My shop is a garage with a concrete floor, my feet hurt at the end of every day I work in there. Future plans are to turn the garage into a full time shop with a wood floor like you have done.

Great move on the electrical!

I will be following your blog with interest.

View Combo Prof's profile

Combo Prof

3698 posts in 1483 days


#8 posted 09-02-2017 01:40 PM

AL I hope it won t squeak. I put in 200 GRK fin/trim screws. Last time I did this i used 1 layer of 3/4 inch tongue and groove plywood with very few screws. But the CDX was so warped and wave I needed the screws to straighten it out. I would have prefered two layers of 1/2 AC plywood, but I am being cheap. I am very worried what will happen when it expands and contracts. but we will see. Once I get the heavy tools and workbench moved it should not be a problem. I had to hoped to move tools in on November, but I think because of winter etc I will wait. Incidentally U-Haul rental is 1/4 the cost in winter. So instead I will just work on the walls, electrical and floor painting. Leaning towards 3 coats of poly.

Candy thanks for the encouragement.

MC When I put a wood floor in my current single bay garage shop. I floated 2 by 4 sleepers between the Foam board insulation and then put tongue and groove 3/4 inch plywood over it. Because the Foam board is also exactly 4’ by 8’ it means that you have a hard time screwing it down to the 2 by 4s along the edges. By putting down two layers of plywood you simply screw one into the other and there is no need to lay in the 2 by 4s. I only wish I chose to at least put in a top layer of AC plywood.

Yes I got good advice here on the electrical and it was also what the electrician recommendation.

I just hope it got done. The electrician had not started yet when I left to return up north.
MISS DIG, Michigan’s only utility safety notification system came and marked (the lack of) anything under ground just before we left. And we all know that there marking is only good for a few days. LOL. I suspect the electrical work will either be completed yesterday or tuesday and I can run electrical lines when I return at Thanksgiving.

-- Don K, (Holland, Michigan)

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