BlueCollarPipefitters
Pipefitting
Offsets, pipe layout, fitting geometry and dimensional references.
- Pipe size basics
- Common offset multipliers
- Long-radius elbows
- Field check
FIELD GUIDE
Trade reference, without digging through the whole internet.
Quick formulas, conversions and jobsite reminders organized by trade. Safety-, code- and manufacturer-critical values are flagged for verification.
Welders / Fabricators
Welding / Fabrication
Weld math, plate/pipe weight, layout and fabrication references.
- Steel density
- Heat input
- Fillet weld size
- Before welding
Electricians
Electrical
Electrical math, conduit helpers and formula references.
- Ohm’s law
- Power
- Voltage drop
- Code note
Concrete / Cement Masons
Concrete
Concrete quantity, rebar, slab and footing math.
- Volume conversion
- Slab volume
- Waste
- Reinforcing
Riggers
Rigging
Sling geometry, load math and rigging reminders.
- Sling-angle effect
- Center of gravity
- Hardware
- Critical lift note
Ironworkers
Ironworker
Structural steel, bolt and layout math.
- Steel density
- Bolt circles
- Diagonal check
- Erection work
Millwrights
Millwright
Drive ratios, rotating equipment and alignment math.
- Pulley speed
- Gear/sprocket ratio
- Alignment
- Torque
Operating Engineers
Heavy Equipment
Grade, excavation, haul and production math.
- Earthwork
- Grade
- Material volume
- Machine limits
Sheet Metal Workers
Sheet Metal
Duct, bend and fabrication math.
- Duct area
- Equivalent sizes
- Gauge warning
- Fabrication
Roofers / Waterproofers
Roofing
Roof area, pitch, squares and material references.
- Roofing square
- Pitch
- Slope factor
- System details
Glaziers
Glazing
Glass area, weight and storefront layout references.
- Area
- Diagonal
- Glass weight
- Clearances
Plumbers
Plumbing
Drain slope, pipe volume, flow and pressure helpers.
- Drain slope quick reference
- Pipe volume
- Pressure
- Code note
HVAC / Refrigeration
HVAC / Refrigeration
Airflow, BTU, refrigeration and duct references.
- Cooling conversion
- Airflow rule of thumb
- Sensible heat shortcut
- Refrigerant work
Sprinkler Fitters
Sprinkler Fitters
Coverage, density, flow and piping helpers.
- Density relation
- Coverage
- Pipe volume
- Design note
Boilermakers
Boilermaker
Vessel, tank, plate and heavy-fabrication math.
- Circumference
- Cylinder volume
- Plate weight
- Fabrication
Carpenters
Carpentry
Stairs, rafters, layout and material math.
- 3-4-5 layout
- Roof pitch
- Rafter geometry
- Stairs
Brick / Block / Masonry
Masonry
Block, brick, mortar and wall math.
- Nominal CMU
- Block count
- Wall area
- Materials
Tile / Terrazzo / Marble
Tile / Terrazzo
Tile, grout, thinset and layout math.
- Tile count
- Waste
- Coverage
- Installation
Plasterers
Plastering
Surface area and material-coverage math.
- Surface area
- Material
- Thickness
- System
Painters / Coaters
Painting / Coatings
Coverage, mix-ratio and coating math.
- Coverage
- Film thickness
- Mix ratio
- Coatings
Drywall Finishers
Drywall
Sheet, compound and wall-area references.
- Sheet area
- Sheet count
- Finish materials
- Fire/sound assemblies
Floor Coverers
Flooring
Floor area, cartons, rolls and waste references.
- Floor area
- Cartons
- Pattern waste
- Installation
Insulators
Insulation
Pipe surface area, batt quantity and jacketing math.
- Cylinder surface
- Batt count
- Thickness
- Systems
Elevator Constructors
Elevator Constructors
Rise, travel and geometry helpers.
- Ideal travel time
- Floor rise
- Layout
- Safety
Laborers
Laborers
Trench, excavation, material and site math.
- Trench volume
- Tonnage
- Slope
- Site conditions
Survey / Layout
Survey / Layout
Grade, coordinate and field-layout math.
- Percent grade
- Inches per foot
- Coordinate distance
- Control
Stationary Engineers
Stationary Engineers
Boiler, chiller and plant-system conversions.
- Boiler horsepower
- Refrigeration ton
- Water heat
- Plant equipment
Pile Drivers
Pile Drivers
Pile batter, spacing and length math.
- Batter ratio
- Pile length
- Spacing
- Driving criteria
Waterproofers / Building Envelope
Waterproofing / Envelope
Membrane, sealant and coverage math.
- Membrane quantity
- Sealant volume
- Coverage
- Details