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How Big A Gap Can You Fill With Drywall Mud? [Solved]

Setting-type compound (the bagged kind you mix vs. the drying-type you buy premixed in a bucket) will easily fill a 1/2" gap without cracking. Make sure you load up the gap well before applying your tape, then finish it as you would any other joint.12 Dec 2010

How to fill gaps in your drywall

this is very important to

Complete Drywall Installation Guide Part 6 Filling Gaps

This video

How to PreFill BEFORE Taping & Mudding. Very Important

You