Trade tools

Free calculators for every trade.

Code-referenced calculators and reference charts for carpentry, plumbing, electrical, roofing, HVAC, and more. No login required to use the tools.

Carpentry

Board feet, joist spans, stair stringers, roof pitch

7 calculators

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Plumbing

Pipe sizing, drainage slope, gas pipe, water heaters

5 calculators

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Electrical

Wire sizing, conduit fill, voltage drop, load calculations

6 calculators

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Roofing

Roof area, shingle estimates, underlayment, gutter sizing

5 calculators

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HVAC

Manual J loads, duct sizing, CFM, SEER savings

5 calculators

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Painting

Paint coverage, wall area, exterior paint, stain estimates

4 calculators

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Landscaping

Mulch volume, sod, irrigation heads, retaining walls

4 calculators

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General Contracting

Job cost estimator, square footage, dumpster sizing

3 calculators

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Concrete and Masonry

Concrete volume, block/brick estimator, rebar, mortar

5 calculators

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Flooring

Flooring area, tile calculator, hardwood boxes, underlayment

4 calculators

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Universal

Tools for Every Trade

Job costing, material planning, unit conversions, and code lookups. These tools work for every trade, every job.

Job Cost Estimator

Line-item materials, labor, markup, and tax. See your profit margin clearly.

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Material List Builder

Build a shopping list and export as a PDF or copy to clipboard.

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Unit Converter

Length, area, volume, and weight conversions with trade-specific presets.

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Code Reference Lookup

Searchable NEC, IRC, and IPC code section index for field use.

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Tools are just the start.

Bit & Grain connects your field work to job costing, invoicing, and scheduling in one place.

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