How to attach wall framing to a cement floor



Attaching a wall to concrete

Preparing a wall for placement on concrete is fairly simple to do. Measurement is the key to being successful at attaching a wood wall to a concrete floor. Once you have located your measurements on your concrete floor, the wall should install quickly.

It will take at least two people to install the wall safely, one to hold the wall in place and the other to drill the set holes for the base.

You see a lot of these type of installations with homes that are built on slab foundations. Others are homes with basements that the owner wants to finish out to complete the home. Finishing out such areas gives the home owner more living space.


Instructions

Step 1

Preparing the wall

If the wall has been fabricated to a custom fit for the wall in question, it is best you have help in handling the wall because it can become awkward during installation to hold and drill the holes for concrete screws.

First measure out the length of the wall. You should place an anchor hole every 18 inches or between every stud of the wall. Distance between studs are usually 16 inches off center. Measure your holes accordingly and mark with a black marker.

Drill through the marks on the wood with a wood drill bit until you make it through the wood. Once the holes are drilled you can then take spray paint or a pencil and mark the concrete underneath through the holes.

Remove the wall and you should see the marks on the concrete floor.

Step 2

Drilling the concrete holes

Drilling into concrete can be tough going. A masonry bit should be used with an impact drill. The drill could be a handful to operate so make sure it has a side handle attachment before attempting to drill the hole. When drilling the hole, make sure to withdraw the bit from time to time to clean out the hole. It will be loaded with dust, so use a shop vac to vacuum the dust out of the hole and then continue until you reach the desired depth of the hole.

Most holes for anchors are usually three inches deep in contrast to the anchor itself. The anchor will come with a set screw. Remove the set screw. Take the anchor sleeve and place it into the top of the hole. Take a hammer and gently tap the top of the anchor down into the hole. Be careful not to distort the top of the housing of the anchor. Once you have the anchor started take a scrap piece of wood and place over the top of the anchor and hammer it flush with the top of the concrete floor.

Step 3

Installing the wall

With the help of a friend, place the wall in the desired position. Take a long screwdriver and run it down into the hole to line the wall holes up with the anchors. Put the anchor screws with a washer down into the hole and start them by hand into the threads of the anchor. Once all the anchor screws are started, check the wall to make sure the wall is plum and level. Your partner should keep checking plum and levelness while you tighten the screws down.

You may have to add a shim here and there to shore up the wall and keep it level. Adding shims are simple to do. Thin slats like a paint stirrer or thin slats of plywood do fine in these types of applications. The insides of basements walls are usually concrete also. You should add anchors once the wall is in place and anchored to the floor. If this is true in your particular case, make sure to not over tighten the wall anchors to much.

Over tightening the screws could throw the plum off as well, so use shims to shore up the wall before tightening completely. Insert the shims behind the studs as you tighten each one of the anchors down. You should have a sturdy wall when you are finished. You have now installed the wall and are ready for insulation and dry wall.


New Block

• Impact drill.
• Masonary drill bits.
• Wood drill bits.
• Hammer.
• Anchor bolts.
• Wood shims.
• Long screw driver.
• A ratchet and sockets to tighten anchor bolts down.
• A long level and plum line.
• Spray paint or pencil to mark holes.
• A second person to help with wall.

Tips and warnings

• Save your back. Ask a friend to help.
• Wear your safty equipment.
• Measure , measure, measure.
• Warnings: When using a high impact drill to drill concrete, always make sure you have control of the drill. It can catch on something in the hole and spin itself into you. Keep a firm grip on the drill and be prepared for catches when drilling the concrete.

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