Guides & Comparisons
Modular Pool vs. Concrete Pool
A modular pool is fabricated as an engineered steel structure and installed on your prepped site; a concrete (gunite/shotcrete) pool is sprayed and formed entirely in your backyard. Both are permanent in-ground pools that last for years. Modular pools emphasize speed and predictable pricing, while concrete pools offer near-limitless shape freedom. Which one wins comes down to how custom you need the shape, your timeline, and how much on-site disruption you can tolerate.
Modular (Steel) Pool vs. Concrete (Gunite) Pool
| Modular (Steel) Pool | Concrete (Gunite) Pool | |
|---|---|---|
| Installation Time | Fabricated in our facility while your site is prepped, so on-site time and total schedule are typically shorter. | Built entirely on-site through forming, spraying, curing, and finishing — a longer, multi-stage process. |
| Cost Predictability | Factory fabrication gives clear all-in starting prices; our steel pools begin at $48,000–$52,000 depending on type. | More variable — excavation surprises, rebar, and finish choices can move the final cost in either direction. |
| Shape Freedom | Designed within engineered modular forms; many shapes available but not unlimited freeform geometry. | Almost any custom shape, depth, or freeform contour is possible since it's formed on-site. |
| On-Site Disruption | Shorter on-site window means less prolonged backyard disruption. | Extended construction with curing periods keeps the yard a worksite longer. |
| Durability | Engineered steel with a protective finish; resists cracking differently than rigid concrete. | Very durable but can develop surface cracks over time and needs periodic resurfacing. |
| Repairs | Finish repairs follow the manufacturer's process; structure is engineered for longevity. | Resurfacing and crack repair are well-understood but can be labor-intensive and costly. |
The Verdict
Go modular if you want a faster install, a clear starting price, and less prolonged backyard disruption — ideal for standard pool shapes. Go concrete if you need a fully custom freeform shape or unusual depth profile and you're comfortable with a longer, more variable build. SaltGrass builds modular pools, but we'll say so honestly when a true freeform concrete design is the better match for your vision.
Modular Pool vs. Concrete Pool — FAQ
Is a modular pool an above-ground pool?
No. Our modular pools are engineered steel structures installed in-ground on a prepped site — they're permanent pools, not temporary above-ground kits.
Why is a modular pool often faster?
Because the pool is fabricated in our facility while your site is prepped in parallel, which shortens the on-site work compared to building concrete from scratch.
Can a modular pool match a custom shape?
Modular pools offer many shapes within engineered forms. For fully freeform geometry, concrete has the edge — we'll tell you which fits your design honestly.
Which lasts longer?
Both are built for long service. Concrete is rigid but can crack and need resurfacing; engineered steel resists cracking differently. The best choice depends on your priorities.
Keep Researching
Still deciding? Talk to Dylan.
We'll give you an honest recommendation based on your project — not a sales pitch.