Choose 3 bundles if you…
- Are installing 22 inches or shorter
- Use a closure or frontal to finish the crown
- Prefer a natural, everyday level of fullness
- Want to keep the install cost lower
Bundle count comparison
3 Bundles vs 4 Bundles
Three bundles cover most sew-ins up to 22 inches with a closure or frontal; four bundles are worth it at 24 inches and beyond, for extra fullness, or for larger head sizes. If you're between the two, go by length first: longer bundles have shorter wefts, so the hair that looks full at 16 inches runs thin at 26.
3 Bundles vs 4 Bundles at a glance
| Attribute | 3 Bundles | 4 Bundles |
|---|---|---|
| Best lengths | Up to 22 inches | 24 inches and longer |
| Fullness | Full, natural everyday look | Extra-full, glam finish |
| With a closure | Usually enough | Fuller at long lengths |
| With a frontal | Enough for most installs | For maximum volume |
| Cost | Lower | One bundle more |
| On MyHairPlan | Bundle Deal — 3-bundle set | Bundle Deal — 4-bundle set |
Choose 4 bundles if you…
- Are going 24 inches or longer
- Want maximum fullness from root to ends
- Have a larger head size or like dense installs
- Are using straighter textures that read thinner
Why length decides bundle count
Bundles are sold by weight, not by coverage, so a 24-inch bundle has a much shorter weft than a 14-inch one. That's why two or three bundles look full at mid lengths but the same weight thins out toward the ends as you go longer. Adding a fourth bundle past 24 inches keeps the ends as full as the roots.
Texture changes the math
Wavy and curly textures like deep wave expand and read fuller, so three bundles often photograph like four. Straight and body wave hair lies flatter, so long straight installs are where the fourth bundle earns its keep.
Common questions
3 Bundles vs 4 Bundles FAQ
Is 3 bundles enough for a sew-in with a closure?
Yes — for most lengths up to 22 inches, three bundles plus a 4x4 closure give a full sew-in. Past 24 inches, add a fourth bundle so the ends don't thin out.
Do I need 4 bundles with a frontal?
Usually not. A frontal covers more of the head than a closure, so three bundles finish most installs. Choose four for extra-long lengths or a denser, glam finish.
How many bundles for 26 or 30 inch hair?
Four bundles from 24–30 inches, and consider five at 32 inches and beyond. Longer bundles have shorter wefts, so each extra length step needs more hair to stay full.