Find useful construction reference charts covering sizes, dimensions, spacing, materials, and common jobsite measurements.
188 resources available
The actual/reference inside diameter for steel, stainless, PVC, and copper pipe by NPS, outside diameter, wall thickness, and schedule, plus why nominal pipe size is never…
Standardized outside diameter by NPS and DN for steel, stainless, PVC, copper, HDPE, and ductile iron pipe, plus why nominal pipe size is not the measured…
General-purpose clearance hole diameters for bolts, screws, and studs under ASME B18.2.8 inch close, normal, and loose fit classes and ISO 273 metric fine, medium, and…
Countersink major diameter, included angle, depth, clearance-hole relationship, and correct head-angle matching for 82-degree, 90-degree, and 100-degree flat-head screws and rivets under ASME and ISO standards.
SAE, USS, ASTM F436 structural, fender, lock, and metric washer inside diameter, outside diameter, and thickness for common bolt sizes, plus style, hardness, and bolt/nut compatibility…
Fractional bolt diameters, UNC/UNF/8UN thread pitch, bolt length conventions, head and wrench size relationships, and the major U.S. bolt standards, including ASME B1.1, ASME B18.2.1/B18.2.6, ASTM…
SAE and metric socket openings, square drive size reference, SAE-to-metric conversion tables, 6-point versus 12-point geometry, and shallow versus deep and hand versus impact socket guidance…
ASME B18.2.2 width across flats, width across corners, thickness, and wrench/socket size for standard and heavy hex nuts, plus UNC/UNF thread compatibility, nut styles, structural grade…
M-size nominal diameter, exact millimeter and inch conversion, coarse and fine pitch context, major/pitch/minor diameter concepts, nominal versus actual thread diameter, and how to correctly measure…
General-purpose clearance holes under ASME B18.2.8, structural steel standard, oversized, short-slotted, and long-slotted hole dimensions under AISC 360 and RCSC, and metric clearance holes under ISO…
Nominal versus actual measured bolt diameter, fractional, decimal, and metric equivalents, major/pitch/minor thread diameter, body diameter tolerances, and the correct method for measuring an unknown bolt…
Panel type examples, single versus multi-span capacity, gauge versus actual base-metal thickness, and wind-uplift guidance on how far a metal roof panel can span between purlins,…