Budget Cartridge Volume from a Declared Triangular Bead Geometry — Free
A sealant line's volume depends on its cross-section, not just its length. Keep the two modeled legs, summed milliliters and one final cartridge roundup visible before buying for a cosmetic, nonstructural job.
The proof surface
Draught-seal tools count strip length. This chart estimates a right-triangular bead's volume and rounds shared material once across joints. It does not size a structural, fire-rated, pressure or waterproofing joint or claim that a nominal cartridge is fully recoverable.
InputCosmetic joint | length meters | triangular leg A mm | triangular leg B mm; usable nominal cartridge volume (ml)
Rare deviceDraught-seal tools count strip length. This chart estimates a right-triangular bead's volume and rounds shared material once across joints. It does not size a structural, fire-rated, pressure or waterproofing joint or claim that a nominal cartridge is fully recoverable.
Output artifactCartridges after one whole-run volume roundup with row-by-row context
Cost$0 local calculation · no card, paid key, subscription or signup · proposed filing price is not for sale
Sample, not your facts: Illustrative inputs: Bath cosmetic joint | 12.4 | 3 | 3; Board edge | 38 | 4 | 4. Usable nominal cartridge volume (mL) = 310. Cartridges after one whole-run volume roundup: 2 whole cartridges. All records are invented.
Before using the bead-volume chart
The geometry is an ideal constant right-triangular cross-section with area leg A times leg B divided by two. Legs are millimeters and length is meters; one square millimeter times one meter corresponds to one milliliter, so that area multiplied by length gives the modeled volume directly. Real joints can be concave, irregular, tooled or deeper than the visible bead. Nominal cartridge volume, nozzle loss, waste and application variation are not measured here. Use this only for a declared cosmetic, nonstructural planning scenario and consult the product instructions for actual joint requirements. The app does not recommend leg dimensions, substrate preparation or material compatibility.
Why the flat version breaks
Using a circular bead formula for a triangular joint
A nozzle's round opening does not establish the final joint's shape. This model explicitly assumes a right triangle from two legs. If the actual bead is circular, concave or irregular, the volume relation differs and should be reviewed separately instead of silently substituting dimensions.
Rounding every joint to a cartridge
Several small joints can share material from one cartridge in this ideal model. Add milliliters first, then round the total once. Per-joint rounding can overstate the whole-unit budget, while the exact volume still excludes waste and usability constraints that need their own evidence.
Calling the budget a suitable joint design
No adhesion, movement, depth, substrate, fire or waterproofing requirement is modeled. A mathematically adequate material volume can accompany an unsuitable joint. Confirm dimensions and material with the manufacturer's instructions or qualified installer rather than using this chart as a design specification.
How to work the bead-volume chart
Confirm the job belongs in this narrow model
Check the sealant manufacturer's instructions and distinguish cosmetic joints from required waterproofing, firestopping, pressure or structural work. Those applications need qualified design and installation guidance. The example legs are invented geometry, not recommended joint dimensions. Keep the job label generic and no location or household identity is needed.
Measure length and state the cross-section
Enter non-negative remaining length in meters and two positive leg dimensions in millimeters. Do not substitute a tube-nozzle diameter for triangular joint legs. If the cross-section varies substantially, split it into separately measured runs with an appropriate reviewed model rather than choosing an optimistic average that conceals deeper sections.
Convert geometry before counting cartridges
Compute triangular area as A×B/2 in square millimeters and multiply by meters for milliliters. Sum all modeled joint volumes, then divide by the supplied positive cartridge volume and round upward once. Keep each row's milliliters visible while the summary uses whole cartridges; unlike units are deliberately not added as though they were the same reading.
Allow for actual application constraints separately
Compare the nominal budget with product instructions and a qualified installer's advice about material loss, tooling and joint shape. This tool adds no universal waste percentage and does not count partly used stock. Record any separately measured loss assumption in your purchase plan rather than treating the ideal volume as guaranteed usable output.
What the bead-volume chart separates
Question
Before
Inspect this instead
Using a circular bead formula for a triangular joint
A nozzle's round opening does not establish the final joint's shape. This model explicitly assumes a right triangle from two legs. If the actual bead is circular, concave or irregular, the volume relation differs and should be reviewed separately instead of silently substituting dimensions.
Measure length and state the cross-section
Rounding every joint to a cartridge
Several small joints can share material from one cartridge in this ideal model. Add milliliters first, then round the total once. Per-joint rounding can overstate the whole-unit budget, while the exact volume still excludes waste and usability constraints that need their own evidence.
Convert geometry before counting cartridges
Calling the budget a suitable joint design
No adhesion, movement, depth, substrate, fire or waterproofing requirement is modeled. A mathematically adequate material volume can accompany an unsuitable joint. Confirm dimensions and material with the manufacturer's instructions or qualified installer rather than using this chart as a design specification.
Allow for actual application constraints separately
This bead-volume chart replaces a manual count or calculation, not source verification or the responsible person’s review.
Run it on the samples, right here
FIRST-LOAD
HYPOTHESIS / PROTOTYPE — checkout unavailable. Calculation is local. A draft is saved automatically in this browser profile when storage is available; Reset to sample clears it. Optional Pro history stores only five summaries and has its own deletion control. State links encode your inputs and can remain in browser history, clipboard or recipients’ records; share only non-sensitive rows. Optional external AI formatting leaves this device. The required site analytics beacon reports page activity; shared URLs contain encoded inputs. Do not treat an encoded URL as private. The calculator has no input-collection endpoint.
Ideal cosmetic-joint volume estimate only, not structural, waterproofing, pressure or firestopping design. Follow the sealant manufacturer's requirements and ask a qualified installer about actual joint dimensions, compatibility and losses before buying or applying material.
Data note: The bead-volume chart processes Cosmetic joint | length meters | triangular leg A mm | triangular leg B mm locally. Starter/sample selection and Run compute in this tab; no input is sent by the calculator. A local draft may be saved; explicit state-link sharing or optional external AI formatting can disclose inputs. Use non-sensitive labels.
Go deeper: the companion app files the same reading as a plotted bar chart sheet
The article demo above runs without limits. The companion app keeps a local history, exports the rows as CSV, prints the bead-volume chart reading, and holds your drafts on this device — one complete free app run; the proposed $4 one-time filing layer is not for sale.
The bead-volume chart answer stays complete for free. The proposed $4 one-time filing layer adds row CSV, print and five local reading summaries, not hidden answers. Checkout is unavailable; the article demo remains unlimited.
Ideal cosmetic-joint volume estimate only, not structural, waterproofing, pressure or firestopping design. Follow the sealant manufacturer's requirements and ask a qualified installer about actual joint dimensions, compatibility and losses before buying or applying material.
What this is built on
Method: Compute triangular area as A×B/2 in square millimeters and multiply by meters for milliliters. Sum all modeled joint volumes, then divide by the supplied positive cartridge volume and round upward once. Keep each row's milliliters visible while the summary uses whole cartridges; unlike units are deliberately not added as though they were the same reading.
All sample records, dates, quantities and labels are invented. No outside policy, contract, rate, clock offset, measurement or accessibility standard is represented as verified.
Google’s official pricing documentation, fetched 2026-10-01, says AI Studio is free in available regions. Optional formatting may require a Google account; manual local entry requires none. Limits can change and free-tier content may be used to improve products. Do not send private records.
Before: sealant buying followed line length alone or per-joint tube guesses. After: cross-section milliliters sum once before a visible cartridge roundup.
A right-triangular 3×3 mm cross-section has area 4.5 mm²; across 12.4 meters it gives 55.8 mL. The 4×4 mm section across 38 meters gives 304 mL. Total modeled volume is 359.8 mL, requiring ceil(359.8/310) = two nominal cartridges. Summing per-joint cartridge roundups happens to agree here but is not the convention: this tool rounds once after summing volume.
Shelf's cross-section is three square millimeters and needs forty-five milliliters; Trim's is 4.5 square millimeters and also needs forty-five. Ninety milliliters total require one 310 mL nominal cartridge. Rounding each joint independently would suggest two, wasting the shared-cartridge capacity in the model. No waste or material left in the nozzle is included.
A zero remaining length yields zero modeled volume despite positive cross-section legs, so no cartridge is required for the entered work. This boundary does not credit partly used cartridges or imply that an existing joint needs no inspection. A zero cross-section leg is rejected because it does not describe the stated positive triangular bead geometry.
Optional AI formatting, never the calculation
Manual entry completes this bead-volume chart for free without signup. If available to you, the free AI Studio interface linked in the sources may format fictional or non-sensitive notes; external access may require an account. No API key or AI call is built into this tool. Free-tier content may be used to improve products. Review each cell and transcribe it to the labeled row schema; do not paste the JSON object into the row box.
Format only these fictional or non-sensitive notes for a bead-volume chart. Return strict JSON shaped as {"rows": [{"label": "string", "cells": ["string", "string", "string"]}], "setting": "string"}. The columns are Cosmetic joint | length meters | triangular leg A mm | triangular leg B mm; the setting is Usable nominal cartridge volume (mL). Keep all supplied strings and quantities exactly; do not calculate, infer missing entries, invent dates or add advice. If any required value is missing, return an empty rows array and ask me for it separately. I will verify every cell against my source and manually transcribe rows using vertical bars before running the local calculator.
An AI response is not executed, fetched or trusted as a result. Missing values remain questions; the strict local parser checks the rows you actually enter.