How to Fasten 2X4's to Concrete Floors

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A hammer is an indispensible tool for working with concrete.
A hammer is an indispensible tool for working with concrete. (Image: Jupiterimages/Photos.com/Getty Images)

Concrete floors are designed to be tough and durable, able to put up with a tremendous amount of stress. This is great for normal use, but when you want to attach something permanent to the floor it makes it more difficult. Ace Hardware recommends using a simple hammer anchor when attaching a 2-by-4 to a concrete floor.

Things You'll Need

  • 2-by-4-inch studs
  • Drill with masonry bits or hammer drill
  • Hammer anchors
  • Hammer

Inspect the equipment you'll be using to ensure it is in good condition. A simple job with just a few holes will need only a powerful consumer drill with properly sharpened masonry bits. A rented or borrowed professional hammer drill is better for extended use.

Drill a hole through the 2-by-4 and into the concrete that matches the width of the pin expander. The 2-by-4 can be drilled with a regular wood bit and then lined up with where the hole is to go into the concrete. When using a concrete bit, be care not to excessively widen the hole by allowing the drill to drift from side to side.

Drop the hammer anchor through the 2-by-4 hole into the concrete hole. Force the sleeve downward until it is flush with the wood.

Hammer the pin into the sleeve until it is flush with the top of the sleeve.

Continue putting hammer anchors into the 2-by-4 until it is securely fastened.

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