Cinder Block Pool Cost Calculator
Planning to build a custom pool on a budget? A cinder block (or concrete block) pool could be an affordable yet strong alternative to traditional concrete, vinyl, or fiberglass designs. This method uses reinforced masonry techniques to create a long-lasting structure that you can fully customize in size, shape, and finish. Use our Cinder Block Pool Cost Calculator to estimate your full project cost—covering materials, excavation, rebar reinforcement, waterproofing, finishing, and labor—so you can plan with accuracy and confidence.
What Is a Cinder Block Pool?
A cinder block pool is built using reinforced concrete blocks stacked and mortared together to form the pool’s walls. The blocks are then waterproofed and finished with plaster, tile, or liner. This DIY-friendly option can be durable and visually appealing if constructed properly.
Why Consider a Cinder Block Pool?
- Lower material costs than poured concrete or gunite pools
- Customizable design and dimensions
- DIY-friendly for experienced builders
- Can be finished with tile, plaster, or vinyl liner
Strong, long-lasting structure when reinforced correctly
Average Cost to Build a Cinder Block Pool
Pool Size | Estimated Total Cost |
Small (10×20 ft) | $15,000 – $25,000 |
Medium (15×30 ft) | $25,000 – $40,000 |
Large (20×40 ft) | $40,000 – $60,000+ |
National Average: $30,000 – $40,000
Per Square Foot: $75 – $120
Cost Breakdown
Component | Average Cost Range |
Cinder blocks & rebar | $3,000 – $6,000 |
Excavation & leveling | $3,000 – $5,000 |
Mortar, grout, & waterproofing | $2,000 – $4,000 |
Pool finish (plaster, tile, or liner) | $5,000 – $10,000 |
Plumbing & filtration | $3,000 – $6,000 |
Decking & coping | $4,000 – $10,000 |
Permits & inspection | $500 – $1,500 |
DIY vs. Professional Installation
What the Calculator Needs
To generate your estimate, provide:
- Pool dimensions (length × width × depth)
- Finish type (plaster, tile, vinyl)
- Add-ons (heater, lighting, steps, decking)
- Location and terrain (flat, sloped, rocky)
- Installation type (DIY or contractor-built)
Sample Estimate: 15×30 Cinder Block Pool
Specs:
- 15×30 ft pool, 5.5-ft average depth
- Plaster finish
- Basic plumbing and concrete deck
Estimate:
- Excavation & site prep: $4,000
- Blocks, rebar & mortar: $5,000
- Waterproofing & plaster: $6,500
- Plumbing & pump system: $4,500
- Decking & coping: $7,000
- Permits & misc.: $1,000
Total Estimated Cost: ~$28,000
Pros and Cons of Cinder Block Pools
Pros:
- Affordable compared to traditional concrete pools
- Customizable shape and size
- Can be built as a DIY project
- Easy to repair individual blocks if damaged
Cons:
- Requires waterproofing to prevent leaks
- Not as smooth or durable as gunite without proper finish
- Labor-intensive to build
- Improper reinforcement can cause cracking
Finishing Options and Their Costs
Finish Type | Cost Range per Sq. Ft. | Notes |
Plaster | $4 – $7 | Smooth, classic, requires maintenance every 10 years |
Tile | $10 – $20 | High-end aesthetic, very durable |
Vinyl Liner | $3 – $5 | Most affordable, may need replacement every 7–10 years |
Epoxy Waterproofing | $6 – $12 | Modern alternative with a glossy finish |
Permit and Safety Requirements
Cinder block pools typically require:
- Building permits and inspections ($500 – $2,000)
- Electrical and plumbing compliance
- Safety fencing or covers as required by local code
Maintenance and Longevity
- Annual maintenance: $500 – $1,000
- Resurfacing or liner replacement: Every 7–10 years
- Lifespan: 20–30 years with proper construction and waterproofing
DIY vs. Professional Installation
DIY:
- Saves on labor (up to 40%)
- Requires masonry skills and precision
- Must follow local building codes
Professional:
- Faster, code-compliant construction
- Warranty-backed workmanship
- Higher upfront cost but lower risk
Final Thoughts
A cinder block pool can be a cost-effective and durable alternative to traditional options—perfect for homeowners looking to balance budget and customization. Use our Cinder Block Pool Cost Calculator to plan your build with confidence and avoid unexpected expenses.
Strong. Affordable. Custom-built for your space.
FAQs
With proper waterproofing and care, 20–30 years or more.
Yes, but only if you have masonry and waterproofing experience.
They can if not properly sealed; waterproofing is essential.
Absolutely—these finishes improve durability and aesthetics.
Yes, typically 25–40% less expensive