PipeBook: Pipefitter Reference

The pipefitter's pocket reference and field calculator. Buy it once, use it forever, no signal required.

REFERENCE — verified, not scraped

Every dimension in PipeBook is extracted from two independent published sources, machine-

compared, and hand-resolved against a third before it ships. Values that haven't cleared

verification are clearly marked. No guesses, no filler.

• Pipe schedules (ASME B36.10M/B36.19M): wall, ID in decimals and 16ths, weight per foot

— NPS 1/8 to 48, Schedule 5 through XXS

• Fitting takeoffs (ASME B16.9): 90s and 45s (LR and SR), tees, concentric and eccentric

reducers, caps, stub ends — 1/2 to 24

• Flanges (ASME B16.5, classes 150/300/600): OD, thickness, bolt circle, hub, length thru

hub — plus the full bolt-up: stud count, diameter, and length (RF and RTJ) and B16.20

ring gasket numbers

CALCULATORS — fraction-native, in 16ths

• Rolling offset: set, roll, travel, run — pick a pipe size at 45° and get the end-to-end

cut length with takeoffs already subtracted

• Miter cuts: cut angle, cutback, heel-to-throat drop, segment lengths

• Parallel offset: equal-spread runs through any turn

• Feet & inches: running tape math that accepts 3' 4 1/2 and never loses a 16th

BUILT FOR THE FIELD

• Works completely offline — no license checks, no sign-in, nothing to time out in a

basement or on a pipeline right-of-way

• Type "6 90" and get the 6-inch takeoffs. "6 150" gets the flange.

• Pin your job's sizes; your recent lookups stay one tap away

• Screen stays awake while a table is open

• Big targets that work with gloves on

No ads. No subscription. No accounts. Features never move behind a paywall.

Built in the U.S.A. by one developer who answers email.