Price as of Jul 24, 2026. Product prices and availability are accurate as of the date indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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Example Calculations

130×14 ft Hoop House, 4 ft Spacing

Inputs

Length30 ft

Width14 ft

Hoop Spacing4 ft

Plastic6mil Poly

Result

Floor Area420 sq ft

Hoops9

Pipe (10ft)20

Plastic Rolls1

Hoops = ceil(30/4)+1 = 9. Arc = π×7 = 22 ft. Total pipe = 9×22 = 198 ft = 20 ten-ft pipes. Cover ≈ 660 sq ft = 1 roll.

250×20 ft Hoop House, 3 ft Spacing

Inputs

Length50 ft

Width20 ft

Hoop Spacing3 ft

PlasticGreenhouse Film

Result

Floor Area1,000 sq ft

Hoops18

Pipe (10ft)57

Plastic Rolls2

Hoops = ceil(50/3)+1 = 18. Arc = π×10 = 31.4 ft. Total pipe = 18×31.4 = 565 ft = 57 pipes. Cover ≈ 1,570 sq ft = 2 rolls.

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Frequently Asked Questions

How many hoops do I need?

Divide hoop house length by hoop spacing (typically 4 ft) and add 1. A 30 ft hoop house at 4 ft spacing needs 8–9 hoops. Closer spacing (3 ft) provides more snow load strength in northern climates.

Formula: Hoops = ceil(Length / Spacing) + 1
4 ft spacing: standard for mild climates
3 ft spacing: better snow/wind resistance
Each hoop needs 2 ground stakes
End hoops may need extra bracing

What size pipe for a hoop house?

For houses up to 14 ft wide, use 1-3/8" or 1" EMT conduit or PVC. For 20+ ft wide structures, use 1-5/8" high-strength steel tubing. PVC is cheaper but degrades in UV and flexes in wind; metal is stronger and lasts longer.

Under 14 ft wide: 1" or 1-3/8" EMT conduit or schedule 40 PVC
Over 14 ft wide: 1-5/8" galvanized steel tubing
PVC: $0.50–$1/ft, lasts 5–10 years with UV degradation
EMT conduit: $0.80–$1.50/ft, stronger, lasts 15+ years
Steel tubing: $2–$4/ft, professional grade, 20+ years

How much plastic do I need?

Measure hoop length (half circle = pi × width/2) times the house length, plus end walls if covered. A 14×30 ft hoop house needs about 700 sq ft of plastic. Buy 20% extra for overlap and securing.

Hoop length = π × (width / 2) for half-circle profile
Cover area = hoop length × house length + end walls
Add 20% for overlap, hip rail, and ground securing
6mil greenhouse poly: ~$0.05/sq ft, lasts 1–2 years
4-year greenhouse film: ~$0.10/sq ft, UV stabilized

How much does a DIY hoop house cost?

A 14×30 ft DIY hoop house costs $500–$1,200 depending on materials. PVC and 6mil poly is cheapest (~$500). EMT conduit with greenhouse film runs $800–$1,200. Commercial kits start at $1,500 for the same size.

Budget PVC + 6mil: $500–$700 for 14×30 ft
EMT + greenhouse film: $800–$1,200
Steel + double-layer poly: $1,500–$2,500
Commercial kit: $1,500–$3,000
Add $200–$400 for end walls, doors, ventilation

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Last Updated: Jul 24, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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Hoop House Calculator — Pipe, Plastic & Dimensions

Plan hoop greenhouse pipe, plastic, and stake materials by dimensions

Floor Area

420 sq ft

Hoops

Pipe (10ft)

Peak Height

7 ft

Units

Length (ft)

Width (ft)

Hoop Spacing (ft)

Include end walls in plastic calculation

Growing Floor Area

420 sq ft

Hoops

Peak Ht

7 ft

Pipes