How to Create an Oval Base for Bags

If you’re making a crochet bag, the base matters more than you think. A well-shaped oval bottom helps your bag sit flat, look polished, and hold its shape. In this tutorial, you’ll learn a simple, repeatable method for building an oval base you can use for many different bag styles.

Whether you’re new to bag-making or you just want cleaner results, this step-by-step approach is easy to follow and great to reference again later.

How an Oval Crochet Base Works for Bag Bottoms

An oval base is typically built by starting with a chain, working around both sides of it, and using increases to create smooth curves at the ends. The goal is an even shape—no rippling, no pointy tips, and no “wavy” edges.

In the video, you’ll see how to place increases so your oval grows consistently each round. This is especially helpful for bags because a balanced base creates a sturdier foundation, helps the sides rise evenly, and gives you a more professional-looking finish.

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Once you understand the structure, you can use the same concept to make smaller purse bases or larger tote bottoms—just by adjusting how long you start and how many rounds you add.

Step-by-step oval base crochet tutorial for bag bottoms

This video walks you through the full process so you can follow along stitch by stitch. Pay attention to how the increases are spaced at the rounded ends—this is the key to keeping your oval base flat and symmetrical as it grows.

Source: ByKaterina Designs

Common Oval Base Mistakes (and How to Fix Them)

If your oval base starts to ruffle, you may be adding too many increases too quickly. If it curls into a bowl shape, it may need more increases at the ends to relax the curve.

Another common issue is losing track of where the “end increases” should go. In the tutorial, you’ll see a consistent rhythm for those increases—following that pattern makes it much easier to keep your rounds neat and your shaping predictable.

That’s it—once you’ve mastered this oval base, you’ll have a go-to starting method for so many crochet bag patterns. Save this tutorial so you can come back to it anytime you’re planning a new bag!

— Maggie