steel-tools

Look up sheet steel gauge thickness (gauges 3-28) in inches and mm with lb/ft², for plain, galvanized or stainless series. Published nominal values for estimating and orientation, not design guidance.

{
  "type": "object",
  "properties": {
    "gauge": {
      "type": "integer",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991,
      "description": "Sheet steel gauge number, 3 through 28"
    },
    "material": {
      "default": "steel",
      "description": "Gauge series — the same number is a different thickness each",
      "type": "string",
      "enum": [
        "steel",
        "galvanized",
        "stainless"
      ]
    }
  },
  "required": [
    "gauge"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Compute carbon steel plate weight from thickness (decimal or fraction) and width/length in inches, with optional material cost via price_per_lb. Published nominal values for estimating and orientation, not design guidance.

{
  "type": "object",
  "properties": {
    "thickness_in": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 16
        },
        {
          "type": "number"
        }
      ],
      "description": "Plate thickness in inches — decimal or fraction (\"3/4\", \"1-1/8\")"
    },
    "width_in": {
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 2000,
      "description": "Plate width in INCHES (a 4x8 ft plate is 48 x 96 in)"
    },
    "length_in": {
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 2000,
      "description": "Plate length in INCHES"
    },
    "price_per_lb": {
      "description": "Optional material price in $/lb, to include a cost estimate",
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 1000
    }
  },
  "required": [
    "thickness_in",
    "width_in",
    "length_in"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Look up an AISC shape designation (W, C, MC, L, HSS, PIPE) for lb/ft, depth and area, with optional piece weight. 14th-Edition-era data. Published nominal values for estimating and orientation, not design guidance.

{
  "type": "object",
  "properties": {
    "designation": {
      "type": "string",
      "minLength": 1,
      "maxLength": 40,
      "description": "AISC designation, e.g. \"W21X50\", \"HSS6X6X3/8\", \"L4X4X3/8\""
    },
    "length_ft": {
      "description": "Optional piece length in feet, for a piece weight",
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 500
    },
    "qty": {
      "description": "Optional piece count",
      "type": "integer",
      "exclusiveMinimum": 0,
      "maximum": 10000
    }
  },
  "required": [
    "designation"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Describe a structural steel connection type (behaviour, use, what goes wrong) by name, alias or slug — or look up a structural bolt grade (A325, A490, A307). Published nominal values for estimating and orientation, not design guidance.

{
  "type": "object",
  "properties": {
    "name_or_slug": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Connection name, alias or slug (e.g. \"clip angle\", \"base-plate\") or a bolt grade (e.g. \"A490\")"
    }
  },
  "required": [
    "name_or_slug"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

RCSC minimum pretension for A325/A490 structural bolts by diameter, with the turn-of-the-nut rotation when a bolt length is given. Published nominal values for estimating and orientation, not design guidance.

{
  "type": "object",
  "properties": {
    "dia": {
      "type": "string",
      "minLength": 1,
      "maxLength": 8,
      "description": "Bolt diameter in inches — fraction (\"3/4\") or decimal (0.75)"
    },
    "length_in": {
      "description": "Optional bolt length in inches, for the turn-of-the-nut rotation",
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 60
    }
  },
  "required": [
    "dia"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Steel pipe dimensions by NPS and schedule: OD, wall, inside diameter and lb/ft for schedules 5, 10, 40/STD, 80/XS, 160 and XXS. Omit the schedule to list them all. Published nominal values for estimating and orientation, not design guidance.

{
  "type": "object",
  "properties": {
    "nps": {
      "type": "string",
      "minLength": 1,
      "maxLength": 8,
      "description": "Nominal pipe size, e.g. \"2\", \"1/2\", \"1-1/4\""
    },
    "schedule": {
      "description": "Optional schedule: \"40\", \"80\", \"160\", \"STD\", \"XS\", \"XXS\", \"5\", \"10\"",
      "type": "string",
      "minLength": 1,
      "maxLength": 8
    }
  },
  "required": [
    "nps"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Weight of round bar, square bar, flat bar or round tube from dimensions in inches — lb/ft and optional piece weight, in carbon, stainless or aluminum. For AISC designations use steel_shape_weight; for plate use steel_plate_weight. Published nominal values for estimating and orientation, not design guidance.

{
  "type": "object",
  "properties": {
    "section": {
      "type": "string",
      "enum": [
        "round-bar",
        "square-bar",
        "flat-bar",
        "round-tube"
      ],
      "description": "Cross-section type"
    },
    "dim1_in": {
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 120,
      "description": "First dimension in inches: diameter (round bar), side (square bar), width (flat bar) or OD (round tube)"
    },
    "dim2_in": {
      "description": "Second dimension in inches: thickness (flat bar) or wall (round tube); unused for round and square bar",
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 60
    },
    "length_ft": {
      "description": "Optional length in feet for a piece weight",
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 10000
    },
    "material": {
      "description": "Default carbon steel; stainless is +2%, aluminum ×0.35",
      "type": "string",
      "enum": [
        "carbon",
        "stainless",
        "aluminum"
      ]
    }
  },
  "required": [
    "section",
    "dim1_in"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Screen a mill cert's yield and tensile against the specified limits for A992, A572 Gr. 50 or A36 — a screening aid, not acceptance. Published nominal values for estimating and orientation, not design guidance.

{
  "type": "object",
  "properties": {
    "grade": {
      "type": "string",
      "minLength": 2,
      "maxLength": 24,
      "description": "Steel grade: \"A992\", \"A572 Gr. 50\" or \"A36\""
    },
    "yield_ksi": {
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 200,
      "description": "Reported yield, ksi"
    },
    "tensile_ksi": {
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 200,
      "description": "Reported tensile, ksi"
    }
  },
  "required": [
    "grade",
    "yield_ksi",
    "tensile_ksi"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Roll a member list (AISC designation, length in feet, piece count — up to 500 lines) into a bill-of-steel ledger: weight per line, total pounds and tons, piece and lineal-foot counts. Net weight only; unmatched designations are listed, not guessed. Published nominal values for estimating and orientation, not design guidance.

{
  "type": "object",
  "properties": {
    "members": {
      "minItems": 1,
      "maxItems": 500,
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "designation": {
            "type": "string",
            "maxLength": 32,
            "description": "AISC designation, e.g. W21X50, L4X4X1/2, HSS6X6X3/8"
          },
          "length_ft": {
            "type": "number",
            "exclusiveMinimum": 0,
            "maximum": 10000,
            "description": "Piece length, feet"
          },
          "qty": {
            "type": "integer",
            "exclusiveMinimum": 0,
            "maximum": 100000,
            "description": "Piece count"
          }
        },
        "required": [
          "designation",
          "length_ft",
          "qty"
        ]
      },
      "description": "The member list to roll up, one line per mark/size"
    }
  },
  "required": [
    "members"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Surface area to coat for an AISC shape: ft² per foot from the cross-section perimeter, piece/lot area with length and qty, optional interior faces for galvanized tubes and gallons at a supplied coverage rate. Published nominal values for estimating and orientation, not design guidance.

{
  "type": "object",
  "properties": {
    "designation": {
      "type": "string",
      "maxLength": 32,
      "description": "AISC designation, e.g. W21X50, HSS6X6X3/8, Pipe4STD"
    },
    "length_ft": {
      "description": "Optional length in feet for a piece/lot area",
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 10000
    },
    "qty": {
      "description": "Optional piece count (default 1) when a length is given",
      "type": "integer",
      "exclusiveMinimum": 0,
      "maximum": 100000
    },
    "include_inside_faces": {
      "description": "Tubes only: add interior surface, as hot-dip galvanizing coats vented HSS/pipe interiors. Default false (outside only).",
      "type": "boolean"
    },
    "coverage_sqft_per_gal": {
      "description": "Optional practical coverage rate from the coating datasheet, to estimate gallons",
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 2000
    }
  },
  "required": [
    "designation"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Generate a vendor-ready Request for Quotation (.xlsx) from structured takeoff line items — grouped by material, with vendor pricing columns, totals and standard terms. You pass parsed line items and a company name; returns a download link that expires within ~48 hours. Nothing you submit is stored.

{
  "type": "object",
  "properties": {
    "company_name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 120,
      "description": "Buyer company on the RFQ header and terms — required"
    },
    "company_location": {
      "description": "City, state under the company name, e.g. \"Denver, CO\"",
      "type": "string",
      "maxLength": 120
    },
    "project_name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 160,
      "description": "Project name for the header and filename"
    },
    "project_location": {
      "type": "string",
      "maxLength": 160
    },
    "date_issued": {
      "description": "Free-form issue date; a blank line is used if omitted",
      "type": "string",
      "maxLength": 60
    },
    "line_items": {
      "minItems": 1,
      "maxItems": 500,
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "item": {
            "type": "string",
            "maxLength": 40,
            "description": "Estimate item number, e.g. \"A-01\""
          },
          "category": {
            "type": "string",
            "maxLength": 60,
            "description": "Shop category, e.g. \"Columns\", \"Plate\", \"Flat Bar\""
          },
          "description": {
            "type": "string",
            "maxLength": 300,
            "description": "Full description; a row containing \"BY OTHERS\" is excluded"
          },
          "size": {
            "type": "string",
            "maxLength": 80,
            "description": "AISC designation or plate/bar dimensions"
          },
          "grade": {
            "type": "string",
            "maxLength": 40,
            "description": "Material grade, e.g. \"A992 Gr.50\", \"A36\""
          },
          "qty": {
            "type": "integer",
            "minimum": 0,
            "maximum": 100000,
            "description": "Piece or stick count; a zero-qty row is excluded"
          },
          "stock_length": {
            "type": "string",
            "maxLength": 80,
            "description": "How it is purchased, e.g. \"3 sticks × 30′\""
          },
          "purchase_wt_lbs": {
            "type": "number",
            "minimum": 0,
            "maximum": 10000000,
            "description": "Estimated purchase weight in pounds"
          },
          "notes": {
            "type": "string",
            "maxLength": 300
          },
          "material_type": {
            "type": "string",
            "enum": [
              "w-shape",
              "plate",
              "flat-bar"
            ],
            "description": "Grouping key: w-shape, plate, or flat-bar"
          },
          "is_stock_purchase": {
            "description": "True for consolidated stock items that supersede piece-level plate/flat-bar rows",
            "type": "boolean"
          }
        },
        "required": [
          "item",
          "category",
          "description",
          "size",
          "grade",
          "qty",
          "stock_length",
          "purchase_wt_lbs",
          "material_type"
        ]
      },
      "description": "Parsed takeoff line items — the calling agent reads the estimate"
    },
    "nesting_rows": {
      "description": "Optional fabricator-facing nesting/drop reference rows",
      "maxItems": 100,
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "material": {
            "type": "string",
            "maxLength": 120
          },
          "nesting_plan": {
            "type": "string",
            "maxLength": 200
          },
          "drop_notes": {
            "type": "string",
            "maxLength": 300
          }
        },
        "required": [
          "material",
          "nesting_plan",
          "drop_notes"
        ]
      }
    },
    "terms": {
      "description": "Override the eight default terms; omit for the standard set",
      "maxItems": 30,
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 500
      }
    }
  },
  "required": [
    "company_name",
    "project_name",
    "line_items"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Add real Bluebeam-compatible annotation objects to a drawing PDF — counts, length/area measurements with live scales, RFI clouds, callouts — from a markups JSON you supply plus placement coordinates. Pass the PDF as an https URL or small base64; returns a marked PDF download link that expires within ~48 hours. Markups appear in Bluebeam Revu's Markups List. You decide placement; the tool guarantees the format. Nothing you submit is stored.

{
  "type": "object",
  "properties": {
    "pdf_url": {
      "description": "HTTPS URL of the source drawing PDF (fetched server-side, SSRF-guarded)",
      "type": "string",
      "maxLength": 2000,
      "format": "uri"
    },
    "pdf_base64": {
      "description": "Base64 PDF for small files (~3 MB max decoded); prefer pdf_url for drawing sets",
      "type": "string",
      "maxLength": 4800000
    },
    "markups": {
      "minItems": 1,
      "maxItems": 500,
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "page": {
            "type": "integer",
            "minimum": 1,
            "maximum": 5000,
            "description": "1-based page number"
          },
          "tool": {
            "description": "A steel takeoff preset key, e.g. hss-ea, w-beam-lf, rfi-cloud",
            "type": "string",
            "maxLength": 60
          },
          "type": {
            "description": "Annotation type when not using a preset tool",
            "type": "string",
            "maxLength": 40
          },
          "at": {
            "anyOf": [
              {
                "type": "array",
                "prefixItems": [
                  {
                    "type": "number"
                  },
                  {
                    "type": "number"
                  }
                ]
              },
              {
                "maxItems": 2000,
                "type": "array",
                "items": {
                  "type": "array",
                  "prefixItems": [
                    {
                      "type": "number"
                    },
                    {
                      "type": "number"
                    }
                  ]
                }
              }
            ]
          },
          "points": {
            "maxItems": 2000,
            "type": "array",
            "items": {
              "type": "array",
              "prefixItems": [
                {
                  "type": "number"
                },
                {
                  "type": "number"
                }
              ]
            }
          },
          "rect": {
            "description": "[x, y, w, h] in the markup's coordinate space",
            "type": "array",
            "prefixItems": [
              {
                "type": "number"
              },
              {
                "type": "number"
              },
              {
                "type": "number"
              },
              {
                "type": "number"
              }
            ]
          },
          "arrow": {
            "type": "boolean"
          },
          "arrow_at": {
            "type": "array",
            "prefixItems": [
              {
                "type": "number"
              },
              {
                "type": "number"
              }
            ]
          },
          "size": {
            "type": "number",
            "maximum": 1000
          },
          "bump": {
            "type": "number",
            "maximum": 200
          },
          "box_w": {
            "type": "number",
            "maximum": 10000
          },
          "box_h": {
            "type": "number",
            "maximum": 10000
          },
          "subject": {
            "type": "string",
            "maxLength": 120
          },
          "label": {
            "type": "string",
            "maxLength": 200
          },
          "contents": {
            "type": "string",
            "maxLength": 2000
          },
          "author": {
            "type": "string",
            "maxLength": 120
          },
          "color": {
            "description": "Hex color, e.g. #FF0000",
            "type": "string",
            "maxLength": 9
          },
          "fill": {
            "type": "string",
            "maxLength": 9
          },
          "fill_opacity": {
            "type": "number",
            "minimum": 0,
            "maximum": 1
          },
          "opacity": {
            "type": "number",
            "minimum": 0,
            "maximum": 1
          },
          "width": {
            "type": "number",
            "maximum": 100
          },
          "font_size": {
            "type": "number",
            "maximum": 200
          },
          "scale": {
            "description": "Per-markup scale, e.g. \"1/4 in = 1 ft\"",
            "type": "string",
            "maxLength": 40
          },
          "coordinate_space": {
            "type": "string",
            "enum": [
              "ratio",
              "pdf"
            ]
          },
          "data": {
            "type": "object",
            "propertyNames": {
              "type": "string"
            },
            "additionalProperties": {}
          },
          "column_data": {
            "maxItems": 50,
            "type": "array",
            "items": {}
          }
        },
        "required": [
          "page"
        ]
      },
      "description": "Markups to place — geometry in ratio (0–1 from top-left) or pdf coordinates"
    },
    "scale": {
      "description": "Document scale for measurements, e.g. \"1/4 in = 1 ft\" or \"1:100\"",
      "type": "string",
      "maxLength": 40
    },
    "page_scales": {
      "description": "Per-page scale overrides, keyed by page number string",
      "type": "object",
      "propertyNames": {
        "type": "string"
      },
      "additionalProperties": {
        "type": "string"
      }
    },
    "coordinate_space": {
      "type": "string",
      "enum": [
        "ratio",
        "pdf"
      ]
    },
    "author": {
      "description": "Markups List author column",
      "type": "string",
      "maxLength": 120
    }
  },
  "required": [
    "markups"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Generate a formal Request for Information PDF from structured fields — header, meta grid, subject, description, proposed solution, attachments, and a blank response block for the design team. You do the judgement (one issue per RFI, exact drawing references, a proposed path forward); the tool guarantees the format. Returns a download link that expires within ~48 hours. Nothing you submit is stored.

{
  "type": "object",
  "properties": {
    "company_name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 120,
      "description": "Contractor issuing the RFI — appears in the header"
    },
    "company_location": {
      "type": "string",
      "maxLength": 120
    },
    "rfi_number": {
      "type": "string",
      "minLength": 1,
      "maxLength": 40,
      "description": "RFI number from the project register, e.g. \"RFI-017\""
    },
    "date": {
      "type": "string",
      "minLength": 1,
      "maxLength": 60,
      "description": "Submission date"
    },
    "project_name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 160
    },
    "project_number": {
      "type": "string",
      "maxLength": 60
    },
    "submitted_to": {
      "type": "string",
      "minLength": 1,
      "maxLength": 160,
      "description": "The party who must respond — engineer, architect, GC"
    },
    "submitted_by": {
      "type": "string",
      "minLength": 1,
      "maxLength": 160,
      "description": "Name — company"
    },
    "reason": {
      "description": "Category: Design Omission, Design Error, Constructability Issue, Scope Clarification, Site Condition, Missing Information, Coordination Conflict — or free text",
      "type": "string",
      "maxLength": 60
    },
    "drawing_refs": {
      "description": "Exact drawing numbers with revisions",
      "maxItems": 20,
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 80
      }
    },
    "spec_refs": {
      "maxItems": 20,
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 80
      }
    },
    "subject": {
      "type": "string",
      "minLength": 1,
      "maxLength": 160,
      "description": "One-line subject — one issue per RFI"
    },
    "description": {
      "type": "string",
      "minLength": 1,
      "maxLength": 4000,
      "description": "The issue: specific references, what is missing or conflicting, why it matters. Newlines respected."
    },
    "proposed_solution": {
      "description": "Suggested path forward, framed as a proposal",
      "type": "string",
      "maxLength": 2000
    },
    "response_needed_by": {
      "type": "string",
      "maxLength": 60
    },
    "attachments": {
      "maxItems": 20,
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160
      }
    }
  },
  "required": [
    "company_name",
    "rfi_number",
    "date",
    "project_name",
    "submitted_to",
    "submitted_by",
    "subject",
    "description"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Generate a formal Nonconformance Report PDF: identification, description, the violated requirement, containment, root cause (prose or 5-Whys chain), disposition (accept-as-is/repair/rework/reject) with actions, and blank quality-review and sign-off blocks. Flags accept-as-is dispositions whose corrective action describes physical work. The disposition decision belongs to the responsible quality authority. Returns a download link that expires within ~48 hours. Nothing you submit is stored.

{
  "type": "object",
  "properties": {
    "company_name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 120,
      "description": "Contractor raising the NCR — appears in the header"
    },
    "company_location": {
      "type": "string",
      "maxLength": 120
    },
    "ncr_number": {
      "type": "string",
      "minLength": 1,
      "maxLength": 40,
      "description": "NCR number from the project register, e.g. \"NCR-008\""
    },
    "date": {
      "type": "string",
      "minLength": 1,
      "maxLength": 60,
      "description": "Date raised"
    },
    "project_name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 160
    },
    "project_number": {
      "type": "string",
      "maxLength": 60
    },
    "raised_by": {
      "type": "string",
      "minLength": 1,
      "maxLength": 160,
      "description": "Name — role"
    },
    "trade_or_supplier": {
      "type": "string",
      "maxLength": 160
    },
    "location": {
      "description": "Area, level, grid, or piece mark",
      "type": "string",
      "maxLength": 200
    },
    "description": {
      "type": "string",
      "minLength": 1,
      "maxLength": 4000,
      "description": "What was found, measured against what was required"
    },
    "requirement_violated": {
      "type": "string",
      "minLength": 1,
      "maxLength": 500,
      "description": "The cited requirement — spec section, drawing/detail, or code clause. An NCR without a cited requirement is dispute fuel."
    },
    "containment": {
      "description": "What was done on the spot — quarantine, stop work, tag",
      "type": "string",
      "maxLength": 1000
    },
    "root_cause": {
      "type": "string",
      "maxLength": 2000
    },
    "root_cause_whys": {
      "description": "5-Whys chain, first why to root; overrides root_cause",
      "maxItems": 5,
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 300
      }
    },
    "resolution": {
      "type": "string",
      "enum": [
        "accept-as-is",
        "repair",
        "rework",
        "reject"
      ],
      "description": "Disposition: accept-as-is (no physical work), repair, rework, or reject"
    },
    "resolution_justification": {
      "description": "Required in practice for accept-as-is — the concession basis",
      "type": "string",
      "maxLength": 1000
    },
    "corrective_action": {
      "description": "Bringing this instance into compliance",
      "type": "string",
      "maxLength": 2000
    },
    "preventive_action": {
      "description": "Stopping recurrence — procedure, inspection, supplier",
      "type": "string",
      "maxLength": 2000
    }
  },
  "required": [
    "company_name",
    "ncr_number",
    "date",
    "project_name",
    "raised_by",
    "description",
    "requirement_violated",
    "resolution"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}