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Securing Partition Walls To Concrete

Large Diameter Tapcon Concrete Tapcon Anchors

Using Large Diameter Tapcon Screws to Secure A Partition Pool House Wall

As a residential contractor I used Tapcon screws, a brand well known, for their excellent masonry holding power.    Tapcons are simple to use and have quickly become a go-to masonry fastener when securing partition walls to concrete.

When used properly, Tapcon masonry fasteners can work well in most masonry materials, such as mortar, brick, block or concrete.

How Tapcons Work

Tapcon masonry screws work by tapping threads into the side wall of a slightly smaller, pre-drilled masonry hole.

A properly sized hole is the key to proper embedment and holding power.    Once the proper size hole is drilled the Tapcon screw is driven into the hole cutting threads cut away masonry material until the screw is threaded and secured.

See Common Installation Errors

Large Diameter Tapcon Sizes

Larger Tapcon bolts are now available in 3/8”, 1/2″,  5/8″ and 3/4″ sizes.  These anchors come with or without a EnvireX coating which provides additional corrosion protection for outdoor applications.  They are also available in stainless steel.

Weather Resistant Features

The Tapcon screw, blue coating is called Climaseal® which is a Thermosetting polyester coating designed to provide rust resistance.  This coating works well and makes the Tapcon screw an excellent choice for outdoor use.

Using Large Diameter Tapcons For Securing Partition Walls To Concrete

We recently were contracted to finish this gorgeous timber framed pool house.

Part of the project was to build and install rough sawn partition changing room and bathroom walls.  The owner / architect specified 2×3 on the flat to save precious space.

In order to accommodate this specification necessitated us securing the partition wall to the masonry floor.  Sleeve anchors were one option , the other was to  use the new large diameter Tapcons.

Securing the partition wall bottom plate to the masonry floor.

The first order of business was to determine proper depth embedment.    We were able to secure 4-inch long Tapcons so in order to get the Tapcon to embed 1-3/4 inches in to the floor we needed to remove some of the bottom plate.

Installation Tip

To determine the length of Tapcon fastener:  Add the thickness of the material plus 1-inch to 1-3/4 inch embedment.

We used a circular saw to cut to kerf approximately 2-inches wide and finished the cut with a oscillating multi-tool.

We then used a wood bit to drill through the 2×4 sole plate.   Once this was complete we used our Bosch SDS Hammer drill  to drill into the masonry floor.

We cleaned out the hole with a vacuum and  then inserted the Tapcons, securing them at first with a socket set and then later using an impact wrench with a nut driver.

We were amazed at how fast, easy and secure the Tapcons held.

Installation Tips:


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