Microlam Beam Calculator

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What is a Microlam Beam Calculator?

A Microlam Beam Calculator is a tool that allows builders, contractors, and engineers to determine the appropriate size or dimensions of a microlaminated veneer lumber (LVL) beam for structural applications.

It helps ensure the safety and stability of the structure by calculating the beam size based on the span length, total load, and maximum allowable deflection.

Why Use a Microlam Beam Calculator?

Using a Microlam Beam Calculator is essential because it helps ensure that the selected beam size can safely support the intended loads and meet building code requirements.

Incorrect beam sizing can result in structural issues, including sagging, deflection, or even structural failure.

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Microlam Beam Calculator







How to Use a Microlam Beam Calculator:

  1. Input the span length (distance between supports) in feet.
  2. Input the total load that the beam needs to support in pounds.
  3. Input the maximum allowable deflection (acceptable amount of vertical sag or bending) in inches.
  4. Click the "Calculate" button.
  5. The calculator will provide the recommended Microlam beam size in inches.

Example Calculation:

Let's say you have the following parameters:

  • Span Length (L): 12 feet
  • Total Load (W): 5,000 pounds
  • Maximum Allowable Deflection (D): 0.25 inches

Using these values in the provided HTML code:

  • Moment of Inertia (I) is calculated as (12^3) / 12 = 144 cubic feet.
  • Required Beam Size = (5000 * 12^2) / (4 * 0.25 * 144) ≈ 156.25 inches.

So, the recommended Microlam beam size, in this example, is approximately 5000 inches.

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