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There is significant savings to be had by ditching the rebar in the slab and using 6x6 wwf (there will still be rebar in the thickened edge). How important is the rebar in a monolithic that is placed on a good base? I’ve seen people say it’s essential and other say it is unnecessary.... hard...

There are about 18 cedar hedge stumps in a row to remove. The rest is just typical flat lawn. The largest of the stumps is less than 6” diameter. I believe the quote was 750$ to remove stumps and 1600$ on additional materials and labor to build back up and compact the lost soil.

There are numerous plants in and around Montreal. Additional fees for that were never mentioned to me. I am getting a couple more quotes to see how they stack up. I am having trouble wrapping my head around the quoted price given that many in the US are paying ~10$/sqft and in Canada...

I am in Montreal. Any reinforcement in your slab?

10 USD —-> 13.50 CAD at today’s exchange rate. Is there something I am missing here to get to 39 CAD/sqft? Knee wall is only 6” tall by 6” wide (just to get the framing off the ground)

They are doing the knee wall all in one pour with the slab. Not sure how the forms work for that but apparently it can be done. Using #3 rebar is adding 2900$ in materials and labor over the welded wire mesh.

Am I crazy to think that this is too much money?! Slab details are as follows... 18’x26’ monolithic 6” thick 4400 psi concrete with 12”x12” thickened edge. 6” knee wall 4 #3 bars in thickened edge and #3 bars @16” OC in slab Formular 300 2” R10 XPS under slab 10 mil vapor barrier Some extra...

Unfortunately all they had was the shiplap formular 300. I can always rip them on the table saw if the shiplap is too problematic during install.

Not sure if it makes any difference but this will be under a monolithic slab.

Just curious which type is preferred for under slab insulation. I will be picking up the Owens Corning C-300 XPS insulation and have been given the choice of shiplap or **** edge. Any experienced installers have some input on this?

Thanks for the info. What would be the general timeframe that a slab must "cure" before any coatings should be applied?

I am weeks away from having the slab poured for my 18x26 detached garage. I am curious what would typically be requested for the surface finish on a garage floor? I am not sure if I would like to seal it or use some sort of coating on it. Would each of those options require different...

What differences would I likely see if I decided not to insulate under the slab? I’ve had numerous people, including a couple of civil engineers tell me that I would be better off not putting insulation under the slab if I intend to heat the building. They mention that minimal heat will be...

The issue with the setback is that there is a fence on the property line so I can’t excavate past that. Leaves me with 2 feet between building and fence.

I am not sure why they plan to do it all in one pour. My guess would be that it saves the crew time. Working as an aircraft mechanic, I spend a whole lot of time on concrete but this is my first experience with having some placed and I gotta say it is WAY more complicated than I had ever...

Building is 18x26 and thickens edge meets slab floor at 45 degrees.

Thanks for the input, I have a couple of questions... how would the control cuts be done when there is a 6” curb wall? Do I continue the cut vertically up the side of the curb wall? Also, due to proximity to the property line I would only be able to able to extend the insulation out on 3...

6” seems to be the standard floor thickness that the contractor pours. I didn’t have an issue since the lift requires minimum 4” floor. Figured more is better.

Yes, I forgot to mention I was going to put 2 saw cuts perpendicular across the slab. This would leave me with 4 9x13 sections. Would the fact that they aren’t perfect squares create any issues? As far as the 4700psi, I went with the higher strength because I intend on installing a lift so I...

I know this topic has been beat to death but after having read countless posts on this forum and numerous articles on the web I have yet to come to a decision on what details to include in my slab construction. I’ll give you an idea of what I’ll be building..... 18x26 monolithic 32 mpa...