Light

ZIP Code 63043

St. Louis County, Missouri — Maryland Heights

20PSF (Ground Snow Load)
LightClassification

What This Means

St. Louis County, Missouri has a light ground snow load of 20 PSF per ASCE 7-22. At this level, most standard residential roofs are designed to handle the load without issue. However, flat or low-slope roofs should still be checked for drifting and sliding snow.

Snow Load Details

ZIP Code63043
CountySt. Louis
CityMaryland Heights
StateMissouri (MO)
Ground Snow Load20 PSF — Light
Classification Range1 - 20 PSF
Data QualityMeasured

Source: ASCE 7-22 ground snow load polygons via ArcGIS

Roof Snow Load Calculator

ASCE 7-22 flat roof formula:  pf = 0.7 × Ce × Ct × Is × pg

Your ground snow load (pg): 20 PSF

Roof Snow Load: 14 PSF

ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.

St. Louis County Snow Load Map

Counties colored by snow load classification. Gray = No Load, Blue = Light, Amber = Moderate, Orange = Heavy, Red = Extreme, Purple = Case Study.

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Nearby ZIP Codes

63040 20 PSF Light 63041 20 PSF Light 63042 20 PSF Light 63044 20 PSF Light 63045 20 PSF Light

Frequently Asked Questions

What is the ground snow load for ZIP code 63043?

ZIP code 63043 is in St. Louis County, Missouri, with a ground snow load of 20 PSF, classified as light per ASCE 7-22.

Is my roof strong enough for snow in 63043?

With a light ground snow load of 20 PSF, standard residential construction typically handles this load, but verify with your local building code.

What county is ZIP code 63043 in?

ZIP code 63043 is in St. Louis County, Missouri (MO).