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Undercut grout debate (I’m in a pickle)
Hey Joe, I an in need of your professional opinion. When I started this project I undercut the baseboard and some grout to finish the row. See Pics…
The gout is a bit brittle and chipped off more that I wanted so before I start the bigger rooms with a long 14′ jagged grout line along one wall and floor I did an experiment by scribing the grout line. See pics.
My question is this.
1) If I scribe I don’t want to leave any gap. I may opt to back cut (Bevel) the scribe at an angle under the plank and grind it off perfect. I may use a router. I just used a thin cheater board in the pic. you can see the gap left above the plank when I tried to use the osc. tool to undercut the short piece in the transition area. The grout under the brick just chipped away. My feeling is that this will leave too much air compared to scribing. Then I remembered I had the contour tool and will give that a go to see how much better it can look vs. undercut.
2) I am using the 6.5 mm 22 mil wear layer Lifeproof (9 x 48) plank. I don’t think this has much (If any) expansion/contraction in controlled environments. I am still going to leave a 1/4″ on the other sides of the room since is going under baseboards. I want to use 1/8″ or less up against the kitchen cabinets and flush on the grout line and leave the expansion to the other side with the baseboards.
Please let me know your expert opinion especially on the expansion part. I sometimes tend to overthink things but unlike finish carpentry or other woodworking this is a bit more of a permanent (Semi-permanent) project I don’t want to repeat anytime soon.
Thanks for your input.
This is what I found (<b style=”font-family: inherit; font-size: inherit; color: var(–bb-body-text-color);”>rigid PVC composite materials with an ISOCORE or closed-cell foam core).
- Low temperature expansion coefficient (similar to concrete)
This polyurethane foam is reinforced with continuous glass fibers and exhibits unique properties thanks to its specific anisotropic structure:
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