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JRH Engineering | Civil | Structural | Land Development

GUIDE 05 - 2027 EDITION

Pool & Outdoor Living Structural Guide in TX, NC, and FL

Texas, Florida & North Carolina (2027)

Pools and outdoor living structures get rejected for a handful of repeat issues. Here are the typical structural specs, engineering costs and the rejection to watch for, by state.

TX

$2,600-

$4,150

FL

$3,120-

$4,680

NC

$2,290-

$3,950

Engineering cost, in-ground gunite pool under 400 sq ft

Important Note: The information in these guides is for general reference only. A licensed Professional Engineer should review any actual design or construction work. JRH Engineering assumes no responsibility for the application or use of these materials.

BY STATE 

Full specs in all three states

TX - 2027

Pool & outdoor living in Texas

In-Ground Gunite pools (<400 sq ft) in Texas typically carry engineering costs of $2,600–$4,150, with a shell thickness of 6-8 in. and #4 rebar spaced 12 in. on center. The most common rejection reason for that pool type is: Missing bonding grid.

Pool Type
Pool Size sq ft
Gunite Shell Thickness in
Rebar Size
Rebar Spacing in OC
Bonding Grid Required
Typical Engineering Cost
Common Rejection Reason
In-Ground Gunite
<400
6-8
#4
12
Yes (every 3 ft)
$2,600 - $4,150
Missing bonding grid
In-Ground Gunite
400-800
8
#5
10-12
Yes (every 3 ft)
$3,650 - $5,700
No soil compaction test
Fiberglass
Any
Shell only
#3 ties
18
Yes
$1,870 - $3,120
No cantilever coping detail
Above-Ground
Any
N/A
N/A
N/A
Yes
$1,250 - $2,080
No deck load calc
Outdoor Kitchen/Patio Cover
Any
N/A
#4 or #5
12-18
Yes if electrical
$2,080 - $3,650
No wind uplift straps

01

9th Edition FBC applies. Screen enclosures and outdoor structures need current product approvals and wind design. JRH handles full packages.

Updated 2027 • FBC 9th Edition • Wind load calcs and product approvals essential • Costs uplifted

Texas notes & assumptions

FL - 2027

Pool & outdoor living in Florida

In-Ground Gunite pools (<400 sq ft) in Florida typically carry engineering costs of $3,120–$4,680, with a shell thickness of 8 in. and #5 rebar spaced 10 in. on center. The most common rejection reason for that pool type is: Missing wind load calc.

Pool Type
Pool Size sq ft
Gunite Shell Thickness in
Rebar Size
Rebar Spacing in OC
Bonding Grid Required
Typical Engineering Cost
Common Rejection Reason
In-Ground Gunite
<400
8
#5
10
Yes (equipotential)
$3,120 - $4,680
Missing wind load calc
In-Ground Gunite
400-800
8-10
#5 or #6
8-10
Yes
$4,160 - $6,760
No product approval for screen enclosure
Fiberglass
Any
Shell only
#4 ties
12-18
Yes
$2,290 - $3,950
No HVHZ wind design if applicable
Above-Ground
Any
N/A
N/A
N/A
Yes
$1,560 - $2,600
No barrier compliance
Outdoor Kitchen/Patio Cover
Any
N/A
#5
10-12
Yes
$2,600 - $4,680
No impact-rated openings

Updated 2027 • Engineering costs ~4% higher • Bonding and soil compaction still top rejection items

Florida notes & assumptions

01

Costs uplifted ~4% from 2026. Geotechnical report strongly recommended for expansive clays (common in TX).

NC - 2027

Pool & outdoor living in North Carolina

In-Ground Gunite pools (<400 sq ft) in North Carolina typically carry engineering costs of $2,290–$3,950, with a shell thickness of 6-8 in. and #4 rebar spaced 12 in. on center. The most common rejection reason for that pool type is: Missing equipotential bonding.

Pool Type
Pool Size sq ft
Gunite Shell Thickness in
Rebar Size
Rebar Spacing in OC
Bonding Grid Required
Typical Engineering Cost
Common Rejection Reason
In-Ground Gunite
<400
6-8
#4
12
Yes (equipotential)
$2,290 - $3,950
Missing equipotential bonding
In-Ground Gunite
400-800
8
#5
10-12
Yes
$3,330 - $5,400
No frost footing depth
Fiberglass
Any
Shell only
#3 ties
18
Yes
$1,665 - $2,910
No backfill compaction spec
Above-Ground
Any
N/A
N/A
N/A
Yes
$1,040 - $1,870
No deck bracing
Outdoor Kitchen/Patio Cover
Any
N/A
#4
12-18
Yes if electrical
$1,870 - $3,330
No snow load calc (mountain counties)

Updated 2027 • Costs ~4% higher • Frost footing and equipotential bonding key items

Florida notes & assumptions

01

Frost depth critical in western NC. Equipotential bonding required. JRH provides sealed designs.

Related reference guides

All 2027 reference guides

01 - Cost & ROI

Soft Cost Estimator

Permitting, civil, structural and stormwater soft costs.

09 - Wind & Insurance

Design wind speeds and uplift under ASCE 7-22.

04 - Permitting

Top 10 Permit Red Flags

Why permits get rejected, and the quick fix.

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Frequently Asked Questions

What engineering requirements and costs apply to residential pools in Texas?

In-Ground Gunite pools (<400 sq ft) in Texas typically carry engineering costs of $2,600–$4,150, with a shell thickness of 6-8 in. and #4 rebar spaced 12 in. on center. The most common rejection reason for that pool type is: Missing bonding grid.

What engineering requirements and costs apply to residential pools in Florida?

In-Ground Gunite pools (<400 sq ft) in Florida typically carry engineering costs of $3,120–$4,680, with a shell thickness of 8 in. and #5 rebar spaced 10 in. on center. The most common rejection reason for that pool type is: Missing wind load calc.

What engineering requirements and costs apply to residential pools in North Carolina?

In-Ground Gunite pools (<400 sq ft) in North Carolina typically carry engineering costs of $2,290–$3,950, with a shell thickness of 6-8 in. and #4 rebar spaced 12 in. on center. The most common rejection reason for that pool type is: Missing equipotential bonding.

How current is this guide?

​This guide was updated in October 2026 for 2027. Construction costs are uplifted roughly 4% from the 2026 baseline, and references reflect ASCE 7-22 and, for Florida, the Florida Building Code 9th Edition (effective December 31, 2026).

Can I use this guide for my specific project?

No. These figures are general reference ranges, not engineering advice. Always verify current local codes, fee schedules, design criteria and site conditions with the Authority Having Jurisdiction, and contact JRH Engineering for project-specific sealed designs, estimates and permit packages.

Disclaimer: These guides are for general reference only and are not engineering advice for any specific project. Verify current local codes, fee schedules and site conditions with the Authority Having Jurisdiction.

​

Proprietary reference material of JRH Engineering. Free for personal and professional use with attribution. Commercial redistribution prohibited without written permission.

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