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More stories about Slab

  • Q&A: Is It Necessary to Compact Slab Sub-Base?

    Q. We need to pour a 24x24-foot concrete slab for an attached garage next to a precast foundation. The precast walls are 9 feet and 4 feet tall (see photo). Unfortunately, the trench overdig is 7 feet deep and as much as 4 feet wide in some places. We would prefer to avoid backfilling and tamping...

  • Q&A: Ceramic Tile on Basement Slab

    Q. What's the best way to vapor-seal a basement slab before tiling over it?

  • Q&A: Garage Slab Drainage

    Q. How should a garage slab be sloped for drainage toward the overhead door? At 1/4 inch per foot on a 24x26-foot foundation, the height difference from front to back would be more than 6 inches. Do I need to grade the sand and gravel sub-base at the same slope so the slab can have a uniform 4-inch...

  • Focus On Energy: Shedding Light on Radiant Heat

    Shedding light on radiant heat

  • Retrofitting Basements

    Building restrictions in California are prompting homeowners who want more space to add on underneath the house. A concrete contractor tells how it's done.

  • Q&A: Making a Dutch Door

    Q. I'm trying to find plans for cutting a solid door slab and making a Dutch door. Any help would be appreciated.

  • Installing Precast Garage Slabs

    Precast concrete slabs can add clear-span basement space for an unbeatable price, and are especially cost effective on steep slopes, as this case study shows.

  • Ordering Ready-Mix Concrete

    There’s more to concrete than water, cement, sand, and stone. An experienced batch plant manager talks about the admixtures that help you match the mix to the job.

  • Trade Talk: Epoxy Coatings for Garage Floors

    Epoxy coatings for garage floors

  • Radon Vent Retrofit

    A radon remediation contractor shows how to install vent pipes beneath a slab to carry radon harmlessly to the outdoors — all for a reasonable cost.