Edging and jointing is not required on most floors and should not be done unless specified.

• A. True
• B. False
• C. Sometimes
• D. Never

Answer: (A)

Edging and jointing are finishing steps driven by the project specifications. They aren’t automatic requirements for every floor; you perform them when the plan or contract calls for it. Edging creates a clean, rounded edge along the slab to help prevent edge chipping and to improve the edge finish, while jointing places control joints to control where cracking due to shrinkage will occur. If the specifications don’t require these steps—perhaps because the floor will be covered, overlaid, ground, or finished in a way that hides or makes these joints unnecessary—then they aren’t done. So, in many projects, you wouldn’t edge or joint unless the spec specifies it.