Use our curated collection of both calculators by Engineering Express & external resources by others useful in our Building Products space.
We create custom calculators for our clients across the US.
Contact us to create a custom calculator for your building product need.

Note: Internal calculators are created by Engineering Express. External calculators are by others and provided as a directory service only.
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- Internal
- Anchor
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- Deck
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- Properties
- Snow
- Wind
- Wood
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- All
- External
- Internal
- Anchor
- Coverings
- Deck
- Fence
- Glass & Glazing
- Loading
- Mechanical Equipment
- Properties
- Snow
- Wind
- Wood
ASCE 7 Components & Cladding Wall Wind Pressure Calculator
Calculate components & cladding wall pressures for up to 50 openings. Easily order certified copies for review & permit.
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ASCE – Wind – Snow – Seismic Location Lookup Tool
ASCE Hazards Tool A quick way to look up key design parameters specified in ASCE standards. Results are provided for a site address for wind speeds, snow loads, seismic, & ...
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Open-Walled Canopy – Pergola Design Load Calculator
Find design pressures for your at-grade freestanding or host-attached canopy-pergola-trellis per ASCE 7 ASC load combinations ASCE 7-22 / IBC 2021 / FBC 2023
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Rooftop Equipment Wind Pressure Calculator
Calculate mechanical rooftop equipment wind pressures & stand clearance heights for up to 5 units. Order certified copies for permit.
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ASCE 7 Wind Zone Interpolation Calculator
This tool interpolates between the corner & interior wall wind zones 4 and 5 as defined by ASCE 7 allowing for a lower possible opening design pressure
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Mullion Calculator by PGT
Calculate Mullion Sizes & Reactions Use this tool by PGT Industries to estimate the mullion size needed to join & support 2 windows. Created for use with Florida Product Approval ...
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Miami Tech Mechanical Unit Stand Calculator
Find frame requirements, part numbers, & Product Approval Links to Rooftop AC mechanical stands by Miami Tech
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Norbord OSB Wall Sheathing Calculator
Determine the required nail spacing for wall sheathing and shear walls. using Norbord / OSB boards. Results are to be verified & certified by a design professional before use.
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ASCE Load Factor Combination Calculator
Determine the ‘factored load’ value of code-required probabilities of snow, live, wind, and other loads on structures.
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Eastern Metal Supply Suspended Canopy Calculator
Size suspended canopy parts to estimate your project. Use the results as a starting point for an engineered design and in purchasing materials from Eastern Metal Supply.
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Eastern Metal Supply Self-Mating Cap & Pan Decking Calculator
Determine the maximum span of various cap & pan decking profiles by Eastern Metal Supply for your design condition. Use the results with your design professional to approve for your ...
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Elite Roof Panel Span Calculator
Estimate the span of various Elite Aluminum EPS panel spans for your loading condition.
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Precast Pads Equipment Design Calculator
Find the ideal Precast Pad for a range of preset or custom generators for a variety of wind conditions Order the certified plans for your building permit.
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Americast Generator Pad Sizing Calculator
Calculate the size and Americast model or size of concrete pad from a dropdown of generator brands for a wind speed and exposure category.
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Generic & Elite Parts Open – Screen – Sunroom – Post and Beam Calculator
Find the beam or column span of generic or Elite 2000 aluminum shapes for open – screened – or solid-walled patio covers. Sponsored by Elite Aluminum Corporation.
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Eastern 2 inch Bertha Clear Panel Span Calculator
Calculate precise anchor spacing by using this companion application to Eastern Metal Product Approval FL28390. Enter installation height, substrate, connection type, and desired anchor to solve for anchor spacing with ...
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DeWALT Adhesive Anchor Volume Estimator
Estimate Quantity Of Epoxy Cartridges The calculator solves for the number of various DeWALT epoxy cartridges needed for a given anchor, substrate, quantity, and waste factor. Engineering Express has created ...
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Snow Load Estimation Tool
Find Your Snow Load Use this resource by Structural Central to determine the design load case due to snow. Learn more about roof, ground, and snow drift from this article ...
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