How to Anchor Concrete Footings to a Bottom Sill

Pour the footing into the wood/metal concrete forms and trowel off the top of the footing as normally performed. While the footing concrete is still wet, insert the mudsill anchor into the concrete at regular intervals around the footing. Make sure to read the manufacturer's instructions and know the local building codes. National and local building codes regulate how far apart mudsill fasteners should be placed.

Spread out the wings of the mudsill anchor so that they point in opposite directions once the footing is dry and the concrete forms removed. One wing points into the building, and the other points toward the exterior of the building.

Lay the foam sill sealer on top of the footing. This thin layer of extruded foam goes between the sill plate and the footing to prevent insect and air infiltration.

Lay the bottom sill on top of the sill sealer, then bend the mudsill wings up around the bottom sill. Nail the mudsill anchor to the sides and then to the top of the sill plate. This metal strap fastener keeps the bottom plate in place as the home is built and prevents the sill from slipping.