Building & Construction
7 categories
Authoritative technical reference for building and construction: pipe thread geometry (NPT/BSPP/BSPT), plumbing pipe schedules, copper and PEX tubing, dimensional lumber, masonry CMU blocks, drywall assemblies, structural steel, and door rough openings.
Categories
Doors & Walls
4 items
Standard dimensions and framing tolerances for wall assemblies and doors: ASTM C1396 gypsum board (drywall) thicknesses, residential and ADA door rough opening calculations, and ANSI/BHMA A156.1 butt hinge mortise dimensions.
Door Butt Hinge • Door Rough Openings • Drywall Sheets • Stair Building Code Dimensions
Electrical & Wiring
7 items
Electrical engineering dimensions, American Wire Gauge (AWG) diameter and ampacity tables, NEC Chapter 9 conduit fill limits, NEMA enclosure sizes, and international wire color coding.
AWG Wire Sizes • Circuit Breaker Sizes & Amperage • Electrical Boxes • Electrical Conduit • Electrical Conduit Fill Capacity • Electrical Wire Color Codes • Wire Ampacity Ratings
Lumber & Wood
4 items
Standardized North American lumber and engineered wood dimensions: DOC PS 20 nominal vs actual surfaced dimensional framing lumber, DOC PS 1/PS 2 structural plywood and OSB panel thicknesses, and ANSI A190.1 Glulam architectural beam profiles.
Dimensional Lumber • Glulam Timber Beams • Janka Wood Hardness Scale • Plywood & OSB Panels
Masonry & Structural
3 items
Standardized masonry and structural building components: ASTM C90 concrete masonry units (CMU cinder blocks), ASTM C216 standard modular clay bricks, and AISC structural steel wide-flange I-beams.
Concrete Masonry Units (CMU) • Standard Modular Brick • Structural Steel I-Beams
Plumbing & Piping
3 categories
Comprehensive engineering specifications for tapered and parallel pipe threads, nominal pipe schedules, copper water tubes, PEX and PVC DWV piping, and plumbing fixtures.
Fixtures & Fittings • Pipe Threads • Pipes & Tubing
Structural & HVAC
4 items
Standardized structural engineering materials, ASTM reinforcing steel bar (rebar) sizes, round spiral and rectangular HVAC duct dimensions, concrete anchor pullout ratings, and AISC steel profile shapes.
Concrete Anchors • HVAC Duct Sizes • Rebar Sizes • Structural Steel Shapes
Thermal Insulation & Acoustics
3 items
Standardized building science metrics: thermal insulation R-values per inch, Sound Transmission Class (STC) acoustic decibel ratings, and roof slope pitch ratios.
Roof Pitch & Slope Standards • Sound Transmission Class (STC) Ratings • Thermal Insulation R-Values